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Am486® Microprocessor
PCI Customer Development
Platform
User’s Manual
Order #22408A
Am486® Microprocessor PCI Customer Development Platform User’s Manual
© 1998 by Advanced Micro Devices, Inc.
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or
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Micro Devices, Inc.
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in Technical Data and Computer Software clause at 252.227-7013. Advanced Micro Devices, Inc., 5204 E. Ben White Blvd.,
Austin, TX 78741.
AMD, the AMD logo, and combinations thereof, Comm86, E86, E86MON, and PCnet are trademarks of, Am486, MACH,
and PAL are registered trademarks of, and FusionE86 is a service mark of Advanced Micro Devices, Inc.
Vantis is a trademark of Vantis Corporation.
Microsoft and Windows are registered trademarks of Microsoft Corp.
Other product or brand names are used solely for identification and may be the trademarks or registered trademarks of their
respective companies.
IF YOU HAVE QUESTIONS, WE’RE HERE TO HELP YOU.
The AMD customer service network includes U.S. offices, international offices, and a customer
training center. Technical assistance is available from the AMD worldwide staff of field application
engineers and factory support staff to answer E86™ and Comm86™ microcontroller family hardware
and software development questions.
Frequently accessed numbers are listed below. Additional contact information is listed on the back
of this manual. AMD’s WWW site lists the latest phone numbers.
Technical Support
Answers to technical questions are available online, through e-mail, and by telephone.
Go to AMD’s home page at www.amd.com and follow the Service link for the latest AMD technical
support phone numbers, software, and Frequently Asked Questions.
For technical support questions on all E86 and Comm86 products, send e-mail to
[email protected] (in the US and Canada) or [email protected] (in Europe and the UK).
You can also call the AMD Corporate Applications Hotline at:
(800) 222-9323
44-(0) 1276-803-299
Toll-free for U.S. and Canada
U.K. and Europe hotline
WWW Support
For specific information on E86 and Comm86 products, access the AMD home page at www.amd.com
and follow the Embedded Processors link. These pages provide information on upcoming product
releases, overviews of existing products, information on product support and tools, and a list of technical
documentation. Support tools include online benchmarking tools and CodeKit™ software—tested
source code example applications. Many of the technical documents are available online in PDF form.
Questions, requests, and input concerning AMD’s WWW pages can be sent via e-mail to
[email protected].
Documentation and Literature Support
Data books, user’s manuals, data sheets, application notes, and product CDs are free with a simple
phone call. Internationally, contact your local AMD sales office for product literature.
To order literature, call:
(800) 222-9323
(512) 602-5651
(512) 602-7639
Toll-free for U.S. and Canada
Direct dial worldwide
Fax
Third-Party Support
AMD FusionE86SM program partners provide an array of products designed to meet critical time-to-market
needs. Products and solutions available include emulators, hardware and software debuggers, board-level
products, and software development tools, among others. The WWW site and the E86 Family Products
Development Tools CD, order #21058, describe these solutions. In addition, mature development
tools and applications for the x86 platform are widely available in the general marketplace.
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Am486® Microprocessor PCI Customer Development Platform
Contents
About the Customer Development Platform
Evaluation Board Features ................................................................................ xiii
Am486® Microprocessor .............................................................................. xiii
Core Logic Chipset ....................................................................................... xiii
DRAM Main Memory................................................................................... xiv
Boot ROM and Flash Memory...................................................................... xiv
Onboard L2 Cache ........................................................................................ xiv
PC and DOS Compatibility.............................................................................xv
PC-Style Super I/O..........................................................................................xv
Keyboard and Mouse Controller .....................................................................xv
Onboard 10/100-Mbit/s Ethernet .................................................................. xvi
Expansion Bus Support ................................................................................. xvi
Development Support.................................................................................... xvi
Form Factor ................................................................................................... xvi
BIOS and Software ....................................................................................... xvi
Customer Development Platform Documentation ........................................... xvii
About This Manual ...................................................................................... xvii
Suggested Reference Material..................................................................... xviii
Documentation Conventions......................................................................... xix
Am486® Microprocessor PCI Customer Development Platform
v
Chapter 1
Quick Start
Setting Up the PCI CDP .................................................................................... 1-2
Installation Requirements.............................................................................. 1-3
Board Installation .......................................................................................... 1-4
Starting from Diskette ................................................................................... 1-6
Starting from an IDE Hard Drive .................................................................. 1-7
Installation Troubleshooting.......................................................................... 1-8
Chapter 2
Board Functional Description
Feature and Layout Diagrams............................................................................ 2-2
Jumper Functions............................................................................................... 2-6
Board Restrictions ............................................................................................. 2-7
Board Features ................................................................................................... 2-7
Am486 Microprocessor (M14)...................................................................... 2-8
Core Logic Chipset (M8, I13, D15) ............................................................ 2-11
Onboard Ethernet Controller (F7) ............................................................... 2-13
4-Kbyte Serial EEPROM (C4) .................................................................... 2-14
Development Support.................................................................................. 2-15
PCI Bus (I7)................................................................................................. 2-19
Level-2 Cache Memory (K19–N19 and N11)............................................. 2-20
DRAM Main Memory (P7)......................................................................... 2-20
Boot ROM (C16)......................................................................................... 2-21
ISA Flash Memory (F20) ............................................................................ 2-23
EIP Flash Memory (L21) ............................................................................ 2-25
Real-Time Clock (G17)............................................................................... 2-27
ISA Bus Interface (A7)................................................................................ 2-28
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Am486® Microprocessor PCI Customer Development Platform
Super I/O (C19)........................................................................................... 2-28
IDE Hard Drive (L4 and M4)...................................................................... 2-31
Keyboard (O1) ............................................................................................ 2-31
Mouse (M1)................................................................................................. 2-31
CPU Voltage Adjustment (Q15–Q16)......................................................... 2-32
Power Supply Connectors (N2 and P2) ...................................................... 2-33
Reset and Interrupt Switches and Headers.................................................. 2-34
Resistor Options .......................................................................................... 2-35
Appendix A
Default Settings
Appendix B
Bill of Materials and Schematics
Board Bill of Materials (BOM) .........................................................................B-2
Schematics.......................................................................................................B-10
Index
Am486® Microprocessor PCI Customer Development Platform
vii
List of Figures
Figure 0-1. PCI CDP Overview............................................................................................. xii
Figure 2-1. PCI CDP Overview (Same as Figure 0-1)......................................................... 2-3
Figure 2-2. PCI CDP Block Diagram................................................................................... 2-4
Figure 2-3. PCI CDP Layout ................................................................................................ 2-5
Figure 2-4. Am486 Microprocessor Block Diagram.......................................................... 2-10
Figure 2-5. JP32 and JP33 Jumper Configuration (B14–C14)........................................... 2-22
Figure 2-6. Typical Memory Map With ISA and EIP Flash Memory ............................... 2-24
Figure 2-7. Serial Port Connector Pins (J8, J9) .................................................................. 2-29
Figure 2-8. Parallel Port Socket (J4) .................................................................................. 2-30
Figure 2-9. Voltage Jumper Default Configuration (Q15–Q16) ........................................ 2-32
Figure 2-10. Ground Wire Connections ............................................................................... 2-33
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Am486® Microprocessor PCI Customer Development Platform
List of Tables
Table 0-1.
Notational Conventions
................................................................................. xix
Table 1-1.
Installation Troubleshooting ............................................................................. 1-8
Table 2-1.
Board Jumper Summary .................................................................................. 2-6
Table 2-2.
PCI Configuration Addressing ........................................................................ 2-11
Table 2-3.
Analyzer Headers ............................................................................................ 2-16
Table 2-4.
PCI Bus Master Test Points ............................................................................ 2-17
Table 2-5.
TIP Interrupt Usage ......................................................................................... 2-18
Table 2-6.
PCI Bus Interrupt Routing............................................................................... 2-19
Table 2-7.
SIMM Socket Population Chart ...................................................................... 2-21
Table 2-8.
Serial Port Pin/Signal Table ............................................................................ 2-29
Table 2-9.
Parallel Port Pin/Signal Table ......................................................................... 2-30
Table 2-10. Switch Summary ............................................................................................. 2-34
Table 2-11. Resistor Options ............................................................................................. 2-35
Table A-1.
Default Jumper Settings .................................................................................. A-1
Am486® Microprocessor PCI Customer Development Platform
ix
x
Am486® Microprocessor PCI Customer Development Platform
About the Customer
Development Platform
Congratulations on your decision to design with the Am486® microprocessor. The
Am486 microprocessor PCI customer development platform (CDP) provides a
reference design for embedded Am486 microprocessor-based systems using the
Peripheral Component Interconnect (PCI) bus with an onboard 10- or 100-Mbit/s
Ethernet connection.
The PCI CDP includes 9 Mbytes of Flash memory, PCI and ISA expansion
connectors, and standard PC peripherals to allow customers to develop and
benchmark network-ready firmware and applications for their embedded products.
In addition, the platform’s use of low cost, off-the-shelf components makes it a
suitable example for use in training or as a reference for customer hardware designs.
The PCI CDP demonstrates that a fifth-generation x86 microprocessor is not
required to include a PCI bus in customer designs.
Note: Advanced Micro Devices does not assume any responsibility for the
maintenance of this evaluation tool. Changes to the schematics will be made only
if the board is required to go back through a CAD layout.
Refer to the Am486 microprocessor documentation (listed on page xviii) for
detailed information on the Am486 microprocessor.
Figure 0-1 on page xii provides an overview of the PCI CDP’s features.
Am486® Microprocessor PCI Customer Development Platform
xi
Am486®
Microprocessor
DRAM
Level-2 Cache
Three 72-pin SIMM Sockets
Supports 48 Mbytes of EDO or FPM DRAM
48 Mbytes of 60-ns DRAM Installed
512 Kbyte
Write-Back Policy
JTAG Port
CPU Logic Analyzer Headers
In-Circuit Emulator Support
Zero-Insertion-Force Socket
Fan/Heat Sink Included
EIP Flash Memory
CPU Bus
Addressed as fourth DRAM bank
8-Mbyte Flash Memory
Faster than ISA Bus Flash Memory
Coexists with up to 48 Mbyte of DRAM
ALi M1489
Cache, Memory, and DRAM Controller
(Northbridge Chip)
PCI Bus Logic Analyzer Headers
NMI, SMI, Reset Switches
Ethernet Controller
PCI Bus
Am79C972 Device
10/100Base-T Port
Three Connection Status LEDs
Extra EEPROM for User Data
IDE Interface
Supports up to Four Devices
Two Connector Status LEDs
PCI Expansion
Two PCI Bus Connectors
ALi M1487
ISA Bridge
(Southbridge Chip)
PCI Bus Arbiter
ISA Bus
Boot ROM Socket
8 Bits Wide
BIOS Included
ISA Expansion
Two ISA Bus Connectors
RTC
DS1685 Real-Time Clock
Year-2000 Compliant
242 Bytes Nonvolatile RAM
ISA Flash Memory
1 Mbyte, 16 Bits Wide
Super I/O
IrDA Module
2 Serial Ports with
Status LEDs
1 Parallel Port
Floppy Disk Interface
M5042 Keyboard
Controller
AT Keyboard Controller
PS/2 Mouse Controller
Hex Display
I/O Port 80h, 8 Bits Wide
I/O Port 680h, 8 Bits Wide
Test Interface Port
Figure 0-1. PCI CDP Overview
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Am486® Microprocessor PCI Customer Development Platform User’s Manual
Evaluation Board Features
This section describes the following features of the PCI CDP:
•
•
•
•
•
•
•
•
•
•
•
•
•
Am486® Microprocessor, page xiii
Core Logic Chipset, page xiii
DRAM Main Memory, page xiv
Boot ROM and Flash Memory, page xiv
Onboard L2 Cache, page xiv
PC and DOS Compatibility, page xv
PC-Style Super I/O, page xv
Keyboard and Mouse Controller, page xv
Onboard 10/100-Mbit/s Ethernet, page xvi
Expansion Bus Support, page xvi
Development Support, page xvi
Form Factor, page xvi
BIOS and Software, page xvi
Am486® Microprocessor
• AMD Am486 DX5 microprocessor is included. Supports Am486 DX2, DX4,
and DX5 microprocessors (168-pin pin-grid array (PGA), 3.3 V or 3.45 V).
• Zero insertion force (ZIF) PGA microprocessor socket for emulator support.
• CPU voltage is jumper selectable.
Core Logic Chipset
• Acer Labs FINALi 486 PCI chipset
– M1489 Cache, Memory, and PCI Controller
– M1487 ISA Bridge Controller
– M5402 Mouse/Keyboard Controller
Am486® Microprocessor PCI Customer Development Platform
xiii
DRAM Main Memory
• 48 Mbyte of 60-ns EDO DRAM installed.
• Supports one, two, or three banks of 32- or 36-bit-wide DRAM using industry
standard 5-V 72-pin SIMMs. DRAM can be fast page mode (FPM) or extended
data out (EDO).
• Supports 1-, 4-, or 16-Mbit technology DRAMs.
• Three SIMM sockets. One or two banks per socket. Three banks DRAM
maximum.
• DRAM is accessible by CPU and PCI bus masters.
• L1/L2 cache snoop cycles are generated for PCI master memory accesses.
• Wait-state timing is configurable through chipset registers.
Boot ROM and Flash Memory
• Dip socket provided for one 8-bit-wide boot ROM, logically on the ISA bus.
• 1 Mbyte of 16-bit-wide Flash memory soldered to the board, logically on ISA
bus.
• 8-Mbyte Flash memory for execute-in-place (EIP) applications, located on the
memory bus in place of one DRAM bank. EIP Flash is implemented using an
AMD 22V10 PAL® device for glue logic.
Onboard L2 Cache
• 512-Kbyte cache size, configured as 32-bit-wide memory.
• Write-back or write-through protocol configurable through chipset registers.
• One 32-Kbyte x8 SRAM for cache tag space, soldered to board.
• Four 128-Kbyte x8 SRAMs for cache data space, soldered to board.
• 2-1-1-1 (read) and 2-2-2-2 (write) burst timing with 15-ns data and 10-ns tag
SRAMs.
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Am486® Microprocessor PCI Customer Development Platform User’s Manual
PC and DOS Compatibility
• IDE interface in chipset.
• Standard chipset configuration registers, known to BIOS and DOS.
• Off-the-shelf PC chipset provides common I/O functions found in a PC:
- Two 82C59 interrupt controllers (SMI, NMI, and INT support)
- One 82C54 programmable interval timer
- Two 82C37 DMA controllers (seven channels)
- External boot ROM chip-select signal
- PC-style real-time clock (RTC) (non-Y2K-compliant, disabled by default)
• DS1285 Y2K-compliant RTC chip. The DS1285 RTC can be disabled, and the
non-Y2K RTC enabled, by removing one resistor and populating another.
PC-Style Super I/O
• DOS and PC-AT compatible I/O.
• Two 16550-compatible serial ports.
• One parallel port. Supports enhanced parallel port (EPP) and extended
capabilities port (ECP) modes.
• Floppy disk interface.
• IrDA port with external transceiver (115 Kbyte/s).
Keyboard and Mouse Controller
• 8042-compatible controller chip (included in chipset).
• AT keyboard interface.
• PS/2 Mouse interface.
Am486® Microprocessor PCI Customer Development Platform
xv
Onboard 10/100-Mbit/s Ethernet
• AMD PCnet™-Fast+ Ethernet Controller Chip, Am79C972.
• 32-bit PCI bus interface with bus mastering capability.
• Integrated 12-Kbyte buffer.
• External PHY transceiver for full duplex operation at 10 or 100 Mbit/s.
• IEEE802.3, PC97, PC98, and NetPC compliance.
• Preprogrammed 1-Kbyte serial EEPROM included for Ethernet configuration.
• Extra 4-Kbyte serial EEPROM included for user nonvolatile data.
Expansion Bus Support
• Two PCI 2.0 expansion connectors, desktop PC style.
• Two ISA 16-bit expansion connectors, desktop PC style.
Development Support
• In-circuit emulator (ICE) support with socketed microprocessor in PGA package.
• Logic analyzer headers for all CPU and PCI bus signals.
• Switches (push-button) for NMI, SMI, and RESET.
• LEDs for IDE, serial port, Ethernet activity, and Ethernet link speed.
• I/O port 80h and 680h hexadecimal displays.
• Am486 microprocessor JTAG support.
• Connector for AMD embedded systems Test Interface Port (TIP) board.
Form Factor
• Baby-AT motherboard form factor.
• Fits standard desktop-PC-style chassis.
BIOS and Software
The included diskette contains information about the included BIOS and any
additional utility and demonstration software for the PCI CDP.
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Am486® Microprocessor PCI Customer Development Platform User’s Manual
Customer Development Platform
Documentation
The Am486® Microprocessor PCI Customer Development Platform User’s
Manual provides information on the design and function of the development
platform. The software shipped with the board is described in the README files
and online BIOS manual included with your kit.
The included online documentation is in text or Adobe Acrobat (PDF) format. The
latest Acrobat Reader is available from Adobe’s site on the World Wide Web
(currently at www.adobe.com).
About This Manual
Chapter 1, “Quick Start” helps you quickly set up and start using the PCI CDP.
Chapter 2, “Board Functional Description” contains descriptions of the basic
sections of the evaluation board: layout, microprocessor, core logic chipset, Ethernet
controller, DRAM, boot ROM and Flash memory, PCI bus and ISA bus interfaces,
super I/O, keyboard and mouse, drives, and interrupt switches.
Appendix A, “Default Settings” summarizes the jumper and configuration resistor
positions on the PCI CDP when it is shipped.
Appendix B, “Bill of Materials and Schematics” shows the bill of materials for the
evaluation board, and the actual CAD schematics used to build the board.
Am486® Microprocessor PCI Customer Development Platform
xvii
Suggested Reference Material
The following AMD documentation may be of interest to the PCI CDP user. For
information on ordering literature, see page iii.
• Enhanced Am486®DX Microprocessor Family Data Sheet, order #20736
• Am486®DX/DX2 Microprocessor Hardware Reference Manual, order #17965
• Am486® Microprocessor Software User’s Manual, order #18497
• Am79C972 PCnetTM-FAST+ Enhanced 10/100 Mbps PCI Ethernet Controller
with OnNow Support Data Sheet, order #21485
• E86 Family Products Development Tools CD, order #21058
• Flash Memory Products Data Book, order # 11796
• For current application notes and technical bulletins, see our World Wide Web
page at www.amd.com.
The following non-AMD documents are also recommended:
• Application Note 77: DS1585/87, DS1685/87, and DS17x85/87 Accessing
Extended User RAM via Software
Dallas Semiconductor, www.dalsemi.com.
• DS1685/DS1687 3 Volt/5 Volt Real Time Clock Data Sheet
Dallas Semiconductor, www.dalsemi.com.
• FINALi 486 M1489/1487 PCI Chip Set Preliminary Data Sheet
Acer Laboratories Inc., see www.acerlabs.com for contact information. Related
BIOS guidelines, errata, and application documents are also available.
• M5113: Enhanced Super I/O Controller Data Sheet
Acer Laboratories Inc., see www.acerlabs.com for contact information.
xviii
Am486® Microprocessor PCI Customer Development Platform User’s Manual
Documentation Conventions
The Advanced Micro Devices Am486® Microprocessor PCI Customer
Development Platform User’s Manual uses the conventions shown in Table 0-1
(unless otherwise noted). These same conventions are used in all the E86 family
support product manuals.
Table 0-1. Notational Conventions
Symbol
Usage
Boldface
Indicates that characters must be entered
exactly as shown, except that the alphabetic case is
only significant when indicated.
Italic
Indicates a descriptive term to be replaced with a
user-specified term.
Typewriter face
Indicates computer text input or output in an example
or listing.
[]
Encloses an optional argument. To include the
information described within the brackets, type only
the arguments, not the brackets themselves.
{}
Encloses a required argument. To include the
information described within the braces, type only
the arguments, not the braces themselves.
..
Indicates an inclusive range.
...
Indicates that a term can be repeated.
|
Separates alternate choices in a list — only one of
the choices can be entered.
:=
Indicates that the terms on either side of the sign are
equivalent.
Am486® Microprocessor PCI Customer Development Platform
xix
xx
Am486® Microprocessor PCI Customer Development Platform User’s Manual
Chapter 1
Quick Start
This chapter provides information that helps you quickly set up and start using the
Am486® microprocessor PCI customer development platform (CDP).
The PCI CDP is shipped with a BIOS that has been configured specifically for the
chipset used on this platform. The BIOS contains the code that enables the PCI
CDP to function as a standard AT-compatible PC, using AT-compatible displays,
display adapters, and keyboards. Details on the BIOS can be found in the BIOS
documentation shipped on diskette with your kit.
The PCI CDP can run AT-compatible operating system software. You can start the
system with either a bootable diskette or an ATA (IDE) hard disk drive that already
has the operating system installed.
Embedded BIOS software typically supports the configuration of onboard Flash
memory as a resident flash disk (RFD) that can also be set up as a boot device. See
the online BIOS manual included with your kit.
For information on how to:
• Set up the PCI CDP, see page 1-2.
• Boot the PCI CDP from a diskette, see page 1-6.
• Boot the PCI CDP from a hard disk drive, see page 1-7.
• Troubleshoot installation problems, see page 1-8.
Am486® Microprocessor PCI Customer Development Platform
1-1
Setting Up the PCI CDP
!
CAUTION: As with all computer equipment, the PCI CDP may
be damaged by electrostatic discharge (ESD). Please take proper
ESD precautions when handling any board.
Warning: Read before using this development platform
Before applying power, the following precautions should be taken to avoid damage
or misuse of the board:
• Make sure power supply connectors (from a standard AT system power supply)
are plugged onto the board correctly. The grounds (usually black wires) must
meet at the center of the two power supply connectors on the board. See “Power
Supply Connectors (N2 and P2)” on page 2-33.
• See Figure 2-3 on page 2-5 for connector positions.
• Check the diskette that was shipped with your kit for README or errata
documentation. Read all the information carefully before continuing.
For current application notes and technical bulletins, see the AMD World Wide
Web page at www.amd.com and follow the link to Embedded Systems.
1-2
Am486® Microprocessor PCI Customer Development Platform User’s Manual
Installation Requirements
You need to provide the following items (in addition to the PCI CDP from the kit).
Required for all setups:
• A VGA-compatible monitor
• A PCI- or ISA-bus video card that supports VGA
• A cable to connect the monitor to the video card
• An AT-compatible keyboard
• A PS/2-style mouse (if needed for your operating system)
• A standard AT-style power supply
To boot from a floppy diskette:
• An AT-compatible 3.5-inch or 5.25-inch diskette drive
• A bootable DOS diskette
• A standard 34-wire AT diskette drive cable
To boot from a hard disk drive:
• An ATA-compatible hard disk drive
• AT-compatible operating system (preinstalled on the hard disk drive)
• A standard 40-pin ATA HDD cable
If you install both a floppy diskette drive and a hard disk drive, you can boot from
either device. Only one boot disk image (floppy or hard disk) is required. For
example, you can boot from the floppy and then install the operating system on a
blank hard disk drive.
!
CAUTION: Use the configuration described here when you first
start the PCI CDP. Before using other features, read the
appropriate sections in Chapter 2, “Board Functional
Description.”
Am486® Microprocessor PCI Customer Development Platform
1-3
Board Installation
Note: See Figure 2-2 on page 2-4 for a block diagram of the board. See Figure
2-3 on page 2-5 for a layout diagram of the board, including connector locations
referenced in this section.
!
DANGER: Make sure the power supply and the VGA
monitor are not plugged into an electrical outlet during
the following steps.
1. Remove the board from the shipping carton. Visually inspect the board to verify
that it was not damaged during shipment. The board contains several jumpers.
The following steps assume all jumpers are in the factory default configuration
(settings are listed in Appendix A, “Default Settings”).
2. If you are installing a diskette drive, perform the following steps:
a. Inspect the 34-wire, diskette-drive cable that you are providing. The red
wire along one edge of the ribbon cable indicates wire 1. Most cables have
a connector for the board at one end and two or more connectors along the
length. There may be two different drive connectors at each location to
accommodate different drive types.
b. Connect one end of the diskette-drive cable to the 34-pin connector
(connector J6 at location E20) on the PCI CDP (with wire 1 oriented
towards the middle of the board). If there is a twist in one span of the cable,
connect the opposite end to the board.
c. Connect another connector on the diskette-drive cable to the diskette drive,
just as you would for a standard PC installation. If there is a twist in the
cable, the position you use determines whether the drive responds as A or
B (typically drive A connects to the end of the cable, beyond the twist). The
connector’s orientation should be indicated in the drive documentation, or
marked near the connector on the drive. Usually wire 1 is oriented towards
the drive’s power cable connector.
d. Find one of the 4-wire power connectors from the PC power supply and
attach it to the 4-pin connector on the diskette drive just as you would for
a standard PC installation.
1-4
Am486® Microprocessor PCI Customer Development Platform User’s Manual
3. If you are installing a hard disk drive, perform the following steps:
a. Inspect the 40-wire IDE cable that you are providing. The red wire along
one edge of the ribbon cable indicates wire 1.
b. Connect one end of the 40-wire IDE cable to the hard drive just as you
would for a standard PC installation. The connector’s orientation should be
indicated in the drive documentation, or marked near the connector on the
drive. Usually wire 1 is oriented towards the drive’s power cable connector.
c. Connect the other end of the 40-wire IDE cable to the first 40-pin connector
(connector J5 at location L4) on the PCI CDP (with wire 1 oriented towards
the edge of the board, near the power supply connector).
d. Find one of the 4-wire power connectors from the PC power supply and
attach it to the 4-pin connector on the hard drive just as you would for a
standard PC installation.
4. Make sure the CPU heat sink is securely attached to the microprocessor and
connect the heat sink fan power wires to a spare disk drive power connector.
Fan power supply connectors are not all the same. Check the voltage printed
on the fan and connect its wires to the correct voltage pins on the appropriate
power supply connector.
5. Insert a PCI- or ISA-bus VGA-compatible video card into an appropriate slot
on the PCI CDP. The PCI slots are labeled SLT1 and SLT2. The ISA slots are
labeled SL1 and SL2.
6. Connect the monitor cable from the monitor to the D-connector on the video
card just as you would for a standard PC.
7. Connect the AT keyboard to the keyboard connector (connector J1 at location O1).
8. Connect the PS/2 mouse (if used) to the mouse connector (connector J11 at
location M1).
9. Connect the connectors (usually marked P8 and P9) from the standard PC power
supply into the board’s power connectors J2 (at location Q2) and J3 (at location
N2). P8 connects to J2 (the six pins closest to the corner of the board); P9
connects to the other six pins. Make sure the black ground wires from P8 and
P9 meet in the middle of the board’s J2 and J3 connectors.
!
CAUTION: Failure to verify the power supply connections can
result in total destruction of the PCI CDP.
Am486® Microprocessor PCI Customer Development Platform
1-5
Starting from Diskette
Use the following steps to start the PCI CDP from a bootable diskette:
1. Make sure you have installed the PCI CDP correctly as described in “Setting
Up the PCI CDP” on page 1-2.
!
CAUTION: Failure to verify the power supply connections can
result in total destruction of the PCI CDP.
2. Plug the VGA monitor into an electrical outlet and turn it on.
3. Insert a bootable DOS diskette (not included) in the disk drive.
4. Apply power to the PCI CDP by connecting the PC power supply to an electrical
outlet. If the power supply is equipped with a switch, turn it on.
The power supply fan should start running, and the port 80h LEDs should start
to display power-on self-test (POST) status codes. Then the speaker should
beep and the monitor should start displaying startup information.
Make sure the CPU heat sink fan is running. Do not operate the microprocessor
without a functioning heat sink fan.
5. The first time you start the system, the BIOS might display a message reporting
a CMOS error or some other BIOS configuration problem. Follow the
instructions shown on the screen to enter the Setup utility. Once you are in the
Setup utility, you can set the system’s date, time, startup drive, and other
options.
For more information on the included BIOS, see the online BIOS manual
included with your kit.
6. Save and exit the setup utility.
7. The system should now boot from the DOS diskette just like a standard PC. If
you encounter any problems, see “Installation Troubleshooting” on page 1-8.
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Am486® Microprocessor PCI Customer Development Platform User’s Manual
Starting from an IDE Hard Drive
Use the following steps to start up the PCI CDP from an IDE hard drive on which
you have preinstalled an operating system (while it was connected to another PC):
1. Make sure you have installed the PCI CDP correctly as described in “Setting
Up the PCI CDP” on page 1-2.
!
CAUTION: Failure to verify the power supply connections can
result in total destruction of the PCI CDP.
2. Plug the VGA monitor into an electrical outlet and turn it on.
3. If a diskette drive is installed, make sure it is empty.
4. Apply power to the PCI CDP by connecting the PC power supply to an electrical
outlet. If the power supply is equipped with a switch, turn it on.
The power supply fan and hard disk should start running, and the port 80h LEDs
should start to display power-on self-test (POST) status codes. Then the speaker
should beep and the monitor should start displaying startup information.
Make sure the CPU heat sink fan is running. Do not operate the microprocessor
without a functioning heat sink fan.
5. The first time you start the system, the BIOS might display a message reporting
a CMOS error or some other BIOS configuration problem. Follow the
instructions shown on the screen to enter the Setup utility. Once you are in the
Setup utility, you can set the system’s date, time, startup drive, and other options.
6. In the BIOS setup utility, use the automatic configuration option to set up
Drive C. Select either physical addressing or logical block addressing (LBA)
as appropriate for your hard disk drive.
For more information on the included BIOS, see the online BIOS manual
included with your kit.
7. Save and exit the setup utility.
8. The system should now boot using the operating system on the hard disk. If
you encounter any problems, see “Installation Troubleshooting” on page 1-8.
Am486® Microprocessor PCI Customer Development Platform
1-7
Installation Troubleshooting
Table 1-1. Installation Troubleshooting
Problem
Solution
The Port 80h LED readout is blank
after I turn on the power supply.
Check power supply connectors J2 and J3.
The Port 80h LED readout is stuck
at 00. I see nothing on the VGA
monitor and do not hear any beeps
from the speaker. I do not hear the
head synchronization on the
diskette drive (if attached).
Ensure processor reset by pressing the Reset button, SW1
at location N5.
The Port 80h LED readout
displayed some power-on-selftest (POST) numbers, but then
stopped at one number before the
system finished starting.
Make sure all cables are connected properly, all adapters
are seated firmly in their slots, and the CMOS battery is
correctly installed.
I hear a beep on the speaker but see
nothing on the VGA monitor.
Check that the monitor is plugged in and turned on.
Check that the BIOS ROM and the microprocessor are
correctly installed, and that jumpers JP32 and JP33 are
both off.
See the online BIOS documentation included with your
kit for a list of POST numbers and meanings.
Check that the monitor is correctly connected to the video
card.
Check that the video card is correctly seated in the
appropriate slot.
Check that the video card supports VGA.
I see the startup information on the
monitor but the memory test stops
at an incorrect memory size.
(1 Mbyte equals 1024 Kbyte.)
Make sure the SIMMs that came with the kit are securely
installed in the SIMM sockets.
I see the startup information on the
monitor but it says there’s a battery
problem or CMOS checksum
error and the system doesn’t finish
booting.
Follow the BIOS instructions to run the Setup utility to
configure the CMOS RAM and save settings.
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Am486® Microprocessor PCI Customer Development Platform User’s Manual
Table 1-1. Installation Troubleshooting (Continued)
Problem
Solution
I configured the CMOS RAM and
saved my settings, but settings are
lost the next time I turn on the PCI
CDP.
Make sure a fresh 3.0-V 20-mm coin cell is installed
correctly (“+” side facing up) in the BT1 battery holder
at location E12.
I don’t hear any sound from the
diskette drive and the system does
not boot from a diskette.
Check that the 34-wire cable to the diskette drive is
properly connected at both the drive end and the board
end (board connector J6 at location E20). The red wire
should be oriented towards pin 1 on both the drive and
the board.
Check that the CMOS setup indicates that drive A is the
correct size and capacity for your diskette drive.
I hear the diskette being accessed
but get an error message “Non
System disk” or “Drive A not
found.”
Check that the diskette in the drive is bootable, just as you
would on a standard PC.
Make sure the diskette drive is connected properly to the
last connector on the cable.
In the BIOS setup utility, make sure the BIOS is
configured to boot from diskette, and that the diskette size
and density is configured properly.
I get a “Missing Keyboard” error
message on the monitor during
boot-up.
Check that an AT-style keyboard is properly connected.
The BIOS debugging monitor
prompt is displayed.
Make sure the NMI switch is not pressed.
Check that the DRAM and any PCI or ISA-bus devices
are installed correctly and known to be functional.
Am486® Microprocessor PCI Customer Development Platform
1-9
Table 1-1. Installation Troubleshooting (Continued)
Problem
Solution
I have installed a hard disk with a
preinstalled operating system, but
the PCI CDP won’t access the hard
disk.
Check that the 40-wire IDE cable is properly connected
at both the drive end and the board end (board connector
J5 at location L4). Check that the CMOS setup is
configured correctly for your drive.
Make sure the board will start from a bootable diskette in
drive A. Then try to do a directory listing of drive C. If
the directory listing of C works, the drive is functioning
and there is a problem with the drive’s boot block or
system image. (Note that some operating systems will
display an error if you list an empty directory. If this
happens, try copying a file to the drive; then do a directory
listing again. If this fails, check the drive for boot block
viruses.)
Make sure the drive functions properly on a different
system.
There is a problem you cannot
resolve.
Check that the board is set to its default settings (see
Appendix A, “Default Settings”).
Contact the AMD Technical Support Hotline
(see page iii).
1-10
Am486® Microprocessor PCI Customer Development Platform User’s Manual
Chapter 2
Board Functional Description
The Am486® microprocessor PCI customer development platform (CDP) provides
a test and development platform for Am486 microprocessor-based designs. Read
the following sections to learn more about the board:
•
•
•
•
Feature and Layout Diagrams, page 2-2
Jumper Functions, page 2-6
Board Restrictions, page 2-7
Board Features, page 2-7
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Am486 Microprocessor (M14), page 2-8
Core Logic Chipset (M8, I13, D15), page 2-11
Onboard Ethernet Controller (F7), page 2-13
4-Kbyte Serial EEPROM (C4), page 2-14
Development Support, page 2-15
- JTAG Ports (Q14 and D17), page 2-15
- Logic Analyzer Headers, page 2-15
- In-Circuit Emulator Compatibility (M14, Q15–Q16), page 2-17
- Hexadecimal Display (H23, J23), page 2-17
- Test Interface Port (TIP) (A16), page 2-18
PCI Bus (I7), page 2-19
Level-2 Cache Memory (K19–N19 and N11), page 2-20
DRAM Main Memory (P7), page 2-20
Boot ROM (C16), page 2-21
ISA Flash Memory (F20), page 2-23
EIP Flash Memory (L21), page 2-25
Real-Time Clock (G17), page 2-27
ISA Bus Interface (A7), page 2-28
Super I/O (C19), page 2-28
- Serial Ports (E23 and C23), page 2-29
- IrDA Interface (A19), page 2-29
- Parallel Port (A22), page 2-30
- Floppy Disk Drive (E20), page 2-30
Am486® Microprocessor PCI Customer Development Platform
2-1
–
–
–
–
–
–
–
IDE Hard Drive (L4 and M4), page 2-31
Keyboard (O1), page 2-31
Mouse (M1), page 2-31
CPU Voltage Adjustment (Q15–Q16), page 2-32
Power Supply Connectors (N2 and P2), page 2-33
Reset and Interrupt Switches and Headers, page 2-34
Resistor Options, page 2-35
See the appendices for information about default board settings, bill of materials,
and schematics.
Feature and Layout Diagrams
The following figures summarize the features and layout of the PCI CDP.
• Figure 2-1 on page 2-3 provides an overview of the platform’s features.
• Figure 2-2 on page 2-4 is the block diagram for the platform.
• Figure 2-3 on page 2-5 shows the platform layout and component locations.
2-2
Am486® Microprocessor PCI Customer Development Platform User’s Manual
Am486®
Microprocessor
DRAM
Level-2 Cache
Three 72-pin SIMM Sockets
Supports 48 Mbytes of EDO or FPM DRAM
48 Mbytes of 60-ns DRAM Installed
512 Kbyte
Write-Back Policy
JTAG Port
CPU Logic Analyzer Headers
In-Circuit Emulator Support
Zero-Insertion-Force Socket
Fan/Heat Sink Included
EIP Flash Memory
CPU Bus
Addressed as fourth DRAM bank
8-Mbyte Flash Memory
Faster than ISA Bus Flash Memory
Coexists with up to 48 Mbyte of DRAM
ALi M1489
Cache, Memory, and DRAM Controller
(Northbridge Chip)
PCI Bus Logic Analyzer Headers
NMI, SMI, Reset Switches
Ethernet Controller
PCI Bus
Am79C972 Device
10/100Base-T Port
Three Connection Status LEDs
Extra EEPROM for User Data
IDE Interface
Supports up to Four Devices
Two Connector Status LEDs
PCI Expansion
Two PCI Bus Connectors
ALi M1487
ISA Bridge
(Southbridge Chip)
PCI Bus Arbiter
ISA Bus
Boot ROM Socket
8 Bits Wide
BIOS Included
ISA Expansion
Two ISA Bus Connectors
RTC
DS1685 Real-Time Clock
Year-2000 Compliant
242 Bytes Nonvolatile RAM
ISA Flash Memory
1 Mbyte, 16 Bits Wide
Super I/O
IrDA Module
2 Serial Ports with
Status LEDs
1 Parallel Port
Floppy Disk Interface
M5042 Keyboard
Controller
AT Keyboard Controller
PS/2 Mouse Controller
Hex Display
I/O Port 80h, 8 Bits Wide
I/O Port 680h, 8 Bits Wide
Test Interface Port
Figure 2-1. PCI CDP Overview (Same as Figure 0-1)
Am486® Microprocessor PCI Customer Development Platform
2-3
JTAG
CPU
Power
CPU Jumpers
Am486®
Microprocessor
Pin Grid Array
(ZIF Socket)
EDO DRAM
72-pin SIMM Socket 1
Logic Analyzer Header(s): CPU Signals
EDO DRAM
72-pin SIMM Socket 2
Onboard
512K L2 Cache
EDO DRAM
72-pin SIMM Socket 3
CPU Address
CPU Data
Cache Control
CPU Control
DRAM-to-Flash
Interface
8-Mbyte Flash Memory
For Execute-In-Place
Memory Address
ALi M1489
Cache, Memory, and PCI Controller
& Control
Logic Analyzer Header(s): PCI Signals
IDE Connector
PCI Bus (33 MHz, 5 V)
AMD Am79C972
PCNet Fast+ Ethernet
IDE Connector
PHY
CPU Interface
1-Kbyte Config SEEPROM
ALi M1487
ISA Bridge Controller
4-Kbyte User SEEPROM
ISA Bus
PCI Expansion Connector
ISA Expansion Connector
ISA Expansion Connector
IrDA
DS1685
Y2K RTC
PCI Expansion Connector
Boot ROM Socket (x8)
M5113A
Super I/O Chip
1-Mbyte FLASH Memory (x16)
MACH®
Logic
Floppy Disk Connector
Serial Port1 Connector
Serial Port2 Connector
M5042
Keyboard
Controller
HEX LEDs for Debug
TIP Board Interface
PS/2 Mouse Connector
LEDs
NMI
SMI
Reset
AT Keyboard Connector
E/net
SIO1
SIO2
IDE0
IDE1
Parallel Port Connector
Switches
System
Clocks
System
Power
Figure 2-2. PCI CDP Block Diagram
2-4
Am486® Microprocessor PCI Customer Development Platform User’s Manual
A
B
C
D
1
E
F
G
H
I
J
K
L
Ethernet
Conn.
M
N
O
P
Q
1
KBD
Mouse
2
2
4
5
6
Pin 1
IDE Hard Disk Conn.
3
3
IDE Hard Disk Conn.
Pin 1
Power Conn.
4
5
6
Am79C972
7
Ethernet
Controller
ISA
Slots
8
DRAM
SIMM
Slots
PCI
Slots
M1489
7
8
Northbridge
9
9
10
10
11
11
12
12
Battery
M1487
13
13
Southbridge
Pin A1
Speaker
14
15
M5042
Kbd/
Mouse
TIP
16
14
Am486®
Microprocessor
15
Boot
ROM
Conn.
16
MACH®
Logic Chip
17
DS
1685
RTC
17
18
18
Floppy Conn.
Super
I/O
20
Parallel Port
21
EIP Flash Memory
22
COM 1
22
20
ISA
Flash
23
COM 2
21
19
Pin 1
M5113
19
23
24
24
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
Figure 2-3. PCI CDP Layout
Am486® Microprocessor PCI Customer Development Platform
2-5
Jumper Functions
Table 2-1 describes the configuration jumpers on the PCI CDP.
Table 2-1. Board Jumper Summary
Part
Signal
Description
Location in See App. B
Figure 2-3 Schematics
on Page 2-5 on:
For More
Info., See:
JP2
CPUVCC3
Used with JP3 to select
either 5-V CPU voltage or
the adjustable voltage set by
jumper JP4. Both JP2 and
JP3 must be positioned the
same.
Q15
Sheet 3
page 2-32
JP3
CPUVCC3
Used with JP2 to select
either 5-V CPU voltage or
the adjustable voltage set by
jumper JP4. Both JP2 and
JP3 must be positioned the
same.
Q16
Sheet 3
page 2-32
JP4
CPUV1,
CPUV2,
CPUV3
Selects the CPU voltage
used when JP2 and JP3 are
set to “ADJ.” The selectable
voltages are 3.45 V, 3.3 V,
and 2.5 V.
R15
Sheet 3
page 2-32
JP32
Boot ROM
A17
Used to configure boot
ROM address signal A17.
C14
Sheet 17
page 2-21
JP33
Boot ROM
A18
Used to configure boot
ROM address signal A18.
B14
Sheet 17
page 2-21
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Am486® Microprocessor PCI Customer Development Platform User’s Manual
Board Restrictions
• Using a PCI chipset with the Am486 microprocessor is a fast and effective way
to design a working system, but the system’s features can be limited by the
chipset’s capabilities.
• The chipset used in the PCI CDP supports 5-V PCI 2.0 devices only. Three
devices are supported: the onboard Ethernet controller and two PCI slots.
• Except for the adjustable CPU supply voltage and 3.3-V Ethernet controller, the
PCI CDP uses 5-V power throughout. (The Am486 microprocessor provides 5V-tolerant I/O.)
• The chipset does not directly support ROM or Flash memory devices except for
the boot ROM. It is possible to implement Flash memory on the DRAM, PCI
or ISA bus, but the chipset only allows booting from the boot ROM. ISA-bus
Flash memory is limited to 1 Mbyte because of addressing considerations.
• The PCI CDP implements two banks of execute-in-place (EIP) Flash memory
in place of one DRAM bank. Flash memory timing requirements limit the
chipset’s DRAM interface to its Fast (not Fastest) speed when the Flash memory
is used. This is equivalent to using 70-ns fast-page-mode (FPM) DRAM.
• The chipset allows only three banks of DRAM to be attached without external
buffers. Buffering the DRAM adds one wait state and reduces the available
performance. “DRAM Main Memory (P7)” on page 2-20 describes additional
DRAM device and configuration limits.
• The ISA peripherals provided by the M1487 chip are configured for standard
PC-AT compatibility, so there is not much flexibility in assigning interrupts and
DMA channels.
• The PCI CDP does not implement OnNow or Advanced Configuration and
Power Interface (ACPI) power management.
Board Features
The remainder of this chapter describes the features of the PCI CDP. The number
in parentheses following each heading indicates the part’s location in Figure 2-3
on page 2-5. In addition, other locations referenced can be found in the figure.
Am486® Microprocessor PCI Customer Development Platform
2-7
Am486 Microprocessor (M14)
The PCI CDP includes an Am486 microprocessor in a 168-pin, pin-grid-array
package (part U25). The microprocessor is zero-insertion-force (ZIF) socketed and
a CPU fan heat sink is provided for cooling. For debugging and analysis, access
is provided to the Am486 microprocessor’s JTAG debugging port and to all of the
microprocessor signals, and support is provided for Intel-compatible in-circuit
emulators. See “Development Support” on page 2-15.
The Enhanced Am486DX Microprocessor Family boosts system performance by
incorporating a 16-Kbyte cache to the existing flexible clock control and enhanced
System Management mode (SMM) features of a 486 CPU. The Enhanced
Am486DX Microprocessor Family has the following characteristics:
• Industry-standard write-back cache support
• Frequent instructions execute in one clock
• 105.6-million bytes/second burst bus at 33 MHz
• Flexible write-through and write-back address control
• Advanced 0.35-µ CMOS-process technology
• 3.3-V or 3.45-V core with 5-V tolerant I/O
• Dynamic data bus sizing for 8-, 16-, and 32-bit buses (the PCI CDP uses a 32bit data bus)
• 32-bit address bus
• 32-bit registers
• Supports “soft reset” capability
• 16-Kbyte unified code and data cache
– Four-way set-associative
– Write-through or write-back policy (the PCI CDP uses write-back policy)
• Floating-point unit
• Paged, virtual memory management
• Stop clock control for reduced power consumption
• Industry-standard two-pin System Management Interrupt (SMI) for power
management independent of processor operating mode and operating system
2-8
Am486® Microprocessor PCI Customer Development Platform User’s Manual
• Static design with Auto Halt power-down support
• Wide range of chipsets supporting SMM available to allow product
differentiation (the PCI CDP uses the Acer Laboratories Inc. FINALi 486
chipset)
• Support available through the AMD FusionE86 Program
Am486® Microprocessor PCI Customer Development Platform
2-9
VOLDET
Power
Plane
32-Bit Data Bus
Clock
Interface
32-Bit Data Bus
Clock
Generator
32-Bit Linear Address
Barrel Shifter
Register File
Descriptor
Registers
24
Physical
Address
ALU
Limit and
Attribute
PLA
Cache Unit
2
32
Paging Unit
24
Translation
Lookaside
Buffer
Physical
Address
16-Kbyte
Cache
Prefetcher
32
Micro-instruction
Code
Stream
Floating
Point
Unit
Floating
Point
Register
File
Central and
Protection
Test Unit
Control
ROM
Instruction
Decode
24
Address
Drivers
Write
Buffers
4x32
A31–A2
BE3–BE0
Copyback
Buffers
4x32
Writeback
Buffers
4x32
128
Displacement Bus
CLK
CLKMUL
STPCLK
Bus Interface
PCD, PWT
Segmentation
Unit
VCC, VSS
32
Data Bus
Transceivers
32-Byte
Code Queue
2x16 Bytes
Bus Control
Request
Sequencer
Decoded
Instruction
Path
D31–D0
ADS, W/R, D/C,
M/IO, PCD, PWT,
RDY, LOCK,
PLOCK, BOFF,
A20M, BREQ,
HOLD, HLDA,
RESET, INTR,
NMI, FERR, UP,
IGNNE, SMI,
SMIACT, SRESET
Burst Bus
Control
BRDY, BLAST
Bus Size
Control
BS16, BS8
Cache
Control
Parity
Generation
and Control
JTAG
KEN, FLUSH,
AHOLD, CACHE,
EADS, INV,
WB/WT, HITM
PCHK,
DP3–DP0
TDI, TCK,
TDO, TMS
Figure 2-4. Am486 Microprocessor Block Diagram
2-10
Am486® Microprocessor PCI Customer Development Platform User’s Manual
Core Logic Chipset (M8, I13, D15)
The PCI CDP uses the Acer Laboratories Inc. FINALi 486 chipset. The chipset
consists of two very-large-scale-integration (VLSI) devices that provide bus
interface and peripheral functions used in the system, plus an M5042 keyboard and
mouse controller. See “Keyboard (O1)” on page 2-31.
The M1489 Cache, Memory, and PCI Controller (often called a northbridge chip)
interfaces the Am486 microprocessor to the memory and PCI bus. The M1489
(part U5 at location M8) performs the following functions:
• Controls DRAM accesses and refresh cycles. See “DRAM Main Memory (P7)”
on page 2-20
• Provides a 33-MHz, PCI 2.0-compliant interface with 5-V signalling. See “PCI
Bus (I7)” on page 2-19
• Maintains Level-1 and Level-2 cache coherency for PCI-master-initiated
memory cycles. See “Level-2 Cache Memory (K19–N19 and N11)” on page
2-20
• Provides an IDE controller for a hard disk drive. See “IDE Hard Drive (L4 and
M4)” on page 2-31
The PCI CDP routes three PCI address signals via series resistors to the IDSEL
pins on the two PCI slots and the onboard Ethernet controller. The chipset asserts
one of these signals to configure each device according to the device number
written to the chipset’s configuration address register. Table 2-2 relates each device
to its device number and signal routing.
Table 2-2. PCI Configuration Addressing
PCI Device Device
Number
PCI Address
Signal
PCI ID Select
Signal
See App. B
schematics on:
Slot SLT1
Device 3
PAD19
PCIID1
Sheet 11
Slot SLT2
Device 4
PAD20
PCIID2
Sheet 11
Ethernet
Controller
Device 5
PAD21
PCIID3
Sheet 11, Sheet 13
Am486® Microprocessor PCI Customer Development Platform
2-11
All PCI bus signals are routed to logic analyzer headers. See “Development
Support” on page 2-15.
The M1487 ISA Bridge Controller (often called a southbridge chip) interfaces the
ISA bus to the PCI bus and provides standard, PC-compatible peripherals devices
common to desktop computers. The M1487 (Part U21 at location I13) provides
the following peripheral functions:
• Two 82C59 interrupt controllers
• One 82C54 programmable interval timer
• Two 82C37 DMA controllers
• A real-time clock (RTC) (optional on the CDP, see “Real-Time Clock (G17)”
on page 2-27)
• External boot ROM decoding
The M1487’s integrated peripherals are configured for standard PC-AT
compatibility, so there is not much flexibility in assigning interrupts and DMA
channels.
The M1487 also contains the PCI bus arbiter, which allows three additional masters.
The PCI CDP board uses one master request/grant interface for the onboard
Am79C972 Ethernet controller. The other two master interfaces are routed to the
PCI expansion slots.
The M1489 and M1487 communicate with each other across their proprietary
LinkBus. The LinkBus has no separate pins, but instead uses the CPU address pins
A2 to A17. The LinkBus handles the RTC, keyboard controller, and boot ROM
transactions as well; this is why CPU address pins are routed to these devices in
the schematics. The chipset asserts the Am486 microprocessor’s AHOLD input to
three-state its address pins when the LinkBus is in use.
2-12
Am486® Microprocessor PCI Customer Development Platform User’s Manual
Onboard Ethernet Controller (F7)
The PCI CDP includes an onboard, full-duplex 10/100BaseT Ethernet port based
on the AMD Am79C972 PCnet™-FAST+ Ethernet Controller (part U51). A
separate voltage regulator provides 3.3-V power for the Ethernet controller. The
Ethernet port is part J10 at location E1 on the board. Three LEDs near the port
indicate transmit and receive activity and link speed. The link LED lights if 100
Mbit/s operation is established.
The Ethernet controller’s interrupt output (INTA) is routed to the chipset’s PCI
INT2 signal. The initialization code dynamically assigns INT2 to an interrupt
request (IRQ) in the chipset’s PCI INTx routing table mapping registers. See the
chipset documentation for details on the mapping registers.
The Am79C972 PCnet-FAST+ device is a highly integrated 10/100 Mbps PCI
Ethernet controller. It includes an IEEE 802.3-compliant Ethernet Media Access
Controller (MAC) with Auto-Negotiation of 10 or 100 Mbps and half- or fullduplex operation, and a Media Independent Interface (MII) for connection to any
standard IEEE 802.3 compliant 10/100 Mbps physical layer (PHY) device.
The Am79C972 contains a high performance 32-bit PCI bus master interface, as
well as large, flexible internal memory buffers, to provide high-speed data
throughput and low CPU and system bus utilization. For PCI configuration, the
Ethernet controller is accessed as device number 5.
The Am79C972 can be configured by the PCI configuration space mechanism or
it can download its configuration from a 1-Kbyte serial EEPROM (part U54 at
location D6). The PCI CDP uses the serial EEPROM interface to configure the
Am79C972 device. The EEPROM is preprogrammed with an Ethernet
configuration suitable for the PCI CDP.
In addition to the Ethernet configuration EEPROM, a 4-Kbyte serial EEPROM is
provided for user nonvolatile data. See “4-Kbyte Serial EEPROM (C4)” on page
2-14.
For customer designs, the PCnet-FAST+ controller is offered with AMD’s
extensive suite of industry-proven PCnet software drivers, remote boot ROM
firmware (not supported by the PCI CDP), and a complete set of supporting utilities
and design tools. Follow the Networking link at www.amd.com for information
about networking software, support, and tools.
Am486® Microprocessor PCI Customer Development Platform
2-13
The PCnet-FAST+ device supports the industry’s Net PC specification. The PCnetFAST+ device also complies with Microsoft’s PC97 and PC98 requirements by
fully supporting the OnNow and ACPI power management initiatives; however,
the PCI CDP does not implement OnNow or ACPI. A customer design could
support these technologies by using an ATX-style power supply and motherboard
design.
4-Kbyte Serial EEPROM (C4)
An extra NM93C66M8 4-Kbyte serial EEPROM (part U81) is connected to the
Am79C972 Ethernet controller’s serial EEPROM interface. This provides
additional EEPROM space for storing user nonvolatile data.
The M1487 device’s CLKCTL signal (controlled via chipset register 40h) is used
to multiplex the Ethernet controller’s EEPROM chip select between the 1-Kbyte
EEPROM and the 4-Kbyte EEPROM. When CLKCTL is asserted (the default),
the Ethernet controller’s 1-Kbyte configuration EEPROM (part U54) is accessed
normally. When CLKCTL is deasserted, the Ethernet controller’s EEPROM
interface registers can be used to access the 4-Kbyte EEPROM to store or retrieve
user data. See Sheet 13 of the schematics in Appendix B.
Software for using the 4-Kbyte EEPROM is provided with the PCI CDP. See the
readme file on the diskette that came with your kit for information about available
utilities.
2-14
Am486® Microprocessor PCI Customer Development Platform User’s Manual
Development Support
The PCI CDP includes the following facilities for development support:
• JTAG port
• CPU-bus and PCI-bus logic analyzer headers
• Port 80 and Port 680 hexadecimal displays
• TIP board interface
These features are described in the following paragraphs.
JTAG Ports (Q14 and D17)
The Am486 microprocessor provides an IEEE Standard 1149.1-1990 (JTAG)
compliant test access port and boundary-scan architecture. The JTAG port provides
a scan interface for testing the microprocessor in a production environment. The
microprocessor’s JTAG port is available on connector J35 at location Q14.
Do not attempt use the second JTAG port (part P48 at location D17). This port is
used at AMD to program the Vantis™ MACH® programmable logic device.
Reprogramming of the MACH device can cause improper system operation. The
MACH device controls the ISA Flash memory space and the Port 80h and 680h
hexadecimal displays. See “ISA Flash Memory (F20)” on page 2-23 and
“Hexadecimal Display (H23, J23)” on page 2-17.
Logic Analyzer Headers
The CPU interface signals are buffered and routed to headers for a logic analyzer.
The signals on the CPU bus logic analyzer headers are arranged to be compatible
with the disassembler for the HP 16500 Logic Analyzer, but any analyzer can be
used. Table 2-3 lists the available headers, their locations in Figure 2-3, and the
Appendix B schematics sheet on which they appear. Sheet 4 of the schematics
includes usage notes.
Am486® Microprocessor PCI Customer Development Platform
2-15
Table 2-3. Analyzer Headers
2-16
Part
Description
Location in
Figure 2-3 on
Page 2-5
See App. B
Schematics
on:
P36
POD 4, Microprocessor data (GD)
signals
P24
Sheet 4
P38
POD 3, Microprocessor data (GD)
signals
M24
Sheet 4
P39
POD 2, Microprocessor control
signals, plus LA qualifier (see note
on schematics Sheet 4)
L11
Sheet 5
P40
POD 6, Microprocessor address
(GA) signals
I17
Sheet 5
P41
POD 1, Microprocessor control
signals
K16
Sheet 5
P42
POD 5, Microprocessor address
(GA) signals, including logicderived GA0 and GA1 signals
I20
Sheet 5
P43
PCI Address and Data (PAD) signals F11
Sheet 12
P44
PCI Address and Data (PAD) signals H9
Sheet 12
P45
PCI control signals
C12–D13
Sheet 12
P46
PCI control signals
C9–D10
Sheet 12
P47
POD 7, Miscellaneous
microprocessor control signals
K10
Sheet 4
Am486® Microprocessor PCI Customer Development Platform User’s Manual
In addition to the logic analyzer headers, separate three-pin headers are provided
for each PCI device’s bus request and bus grant signals. These headers are listed
in Table 2-4:
Table 2-4. PCI Bus Master Test Points
Part
Signal
Location in
Figure 2-3 on
Page 2-5
See App. B
Schematics
on:
JP29
PREQJ0
PGNTJ0
GND
I6
Sheet 12
JP30
PREQJ1
PGNTJ1
GND
K5
Sheet 12
JP31
PREQJ2
PGNTJ2
GND
E7
Sheet 12
In-Circuit Emulator Compatibility (M14, Q15–Q16)
The PCI CDP can be used with an in-circuit emulator that mates to the pin-gridarray (PGA) zero-insertion-force (ZIF) socket in place of the Am486
microprocessor. To support emulators that use an Intel microprocessor, the
necessary CPU power-supply jumpers are provided so the board will work with
Intel 486 DX2 and DX4 chips. See “CPU Voltage Adjustment (Q15–Q16)” on
page 2-32.
When connecting an in-circuit emulator, risers might be required to allow proper
placement relative to the microprocessor socket and the ISA slots.
Hexadecimal Display (H23, J23)
The PCI CDP includes 2-digit hexadecimal displays for port 80h and port 680h
debugging messages. To change the display value, perform an 8-bit write to I/O
port 80h or 680h, respectively. The value written is latched by the display and
cannot be read back by software.
Am486® Microprocessor PCI Customer Development Platform
2-17
Test Interface Port (TIP) (A16)
The PCI CDP includes a connector for the AMD Test Interface Port (TIP) board.
The TIP board is used for testing and debugging AMD embedded product customer
development platforms. It connects through a ribbon cable to the TIP connector
on the platform.
The TIP board provides a collection of peripherals, such as LEDs, hexadecimal
displays, an LCD display, two serial ports, a parallel port, an Ethernet controller,
and Flash memory, that can be convenient in system development.
The PCI CDP’s TIP connector resides on the ISA bus and can use the ISA interrupt
request (IRQ) signals if a TIP board is connected. Individual TIP connector IRQ
signals are listed in Table 2-5. See the TIP board documentation for I/O addressing
information.
Table 2-5. TIP Interrupt Usage
TIP Function
Interrupt
TIP Ethernet
IRQ15
TIP parallel port
IRQ12
TIP serial port 1
IRQ11
TIP test function
IRQ14
TIP serial port 2
IRQ10
NOTE: The TIP board’s IRQ usage can conflict with the PCI CDP’s onboard PC
peripherals. Some TIP or CDP peripherals may not operate correctly when the TIP
board is in use.
2-18
Am486® Microprocessor PCI Customer Development Platform User’s Manual
PCI Bus (I7)
The PCI CDP has two desktop-PC-style PCI expansion connectors (parts SLT1
and SLT2) to allow the installation of a wide array of off-the-shelf 5-V PCI devices.
These include standard devices such as video, sound, SCSI, or PCMCIA adapters,
or diagnostic devices such as PCI bus analyzers, extender cards, and other
diagnostic hardware. The slots do not support 3.3-V PCI peripherals. The PCI bus
is implemented via the chipset’s M1489 northbridge chip except for bus arbitration,
which is handled by the M1487.
For PCI bus configuration, connector SLT1 is addressed as Device 3 and SLT2 is
addressed as Device 4. See Table 2-2, “PCI Configuration Addressing,” on page 2-11.
The PCI bus connector’s interrupt signals are routed as shown in Table 2-6. (The
Ethernet interrupt signal is also shown for reference.) The initialization code
dynamically assigns PCI interrupts to an interrupt request (IRQ) in the chipset’s
PCI INTx routing table mapping registers. See the chipset documentation for
details on the mapping registers.
Table 2-6. PCI Bus Interrupt Routing
PCI Bus Interrupt PCI Slot 1 Signal PCI Slot 2 Signal
Ethernet Signal
INT0
INTA
INTD
—
INT1
INTB
INTA
—
INT2
INTC
INTB
INTA
INT3
INTD
INTC
—
Am486® Microprocessor PCI Customer Development Platform
2-19
Level-2 Cache Memory (K19–N19 and N11)
The PCI CDP includes an onboard 512-Kbyte, single-bank, direct-mapped, unified
Level-2 cache. This is the largest single-bank cache allowed by the chipset. The
cache tag and data static RAM (SRAM) devices are soldered onto the PCI CDP
board. A 10-ns tag SRAM device and 15-ns data SRAM devices are used to achieve
2-1-1-1 timing on reads and 2-2-2-2 on writes.
The tag SRAM is a single 32-K by 8-bit device, part U11, and the data SRAMs
are 128-K by 8-bit devices, parts U7, U8, U9, and U10.
Chipset registers allow the level-2 cache to be disabled or enabled. The level-2
cache can be configured for either write-back or write-through operation.
NOTE: The benefit of level-2 cache varies, depending on the software being used.
DRAM Main Memory (P7)
The PCI CDP comes with three standard, 5-V, 72-pin single inline memory module
(SIMM) sockets, populated with three 16-Mbyte, 60-ns, extended data out (EDO)
SIMMs.
The included SIMMs provide the largest and fastest DRAM configuration allowed
in this design. For customer designs, the SIMM configurations supported depend
upon the chipset and the initialization or BIOS code used to configure the chipset’s
registers. See the chipset documentation for information about detecting and
configuring DRAM. The BIOS provided will automatically detect the amount of
DRAM installed.
The chipset used in this design supports 2-, 4-, 8-, 16-, or 32-Mbyte SIMMS using
4- or 16-Mbit technology DRAM chips. Either fast page mode (FPM) or EDO
SIMMs can be used, and the sockets can be filled with a combination of FPM or
EDO SIMMs. All installed SIMMs must be run at the same speed, however.
The chipset allows either 1, 2, or 3 DRAM banks. Single- and double-bank SIMMs
can be combined as shown in Table 2-7 on page 2-21.
2-20
Am486® Microprocessor PCI Customer Development Platform User’s Manual
Table 2-7. SIMM Socket Population Chart
SIMM 0
SIMM 1
SIMM 2
Single Bank SIMM
Single Bank SIMM
Single Bank SIMM
Double Bank SIMM
Single Bank SIMM
—
NOTE: 32- or 36-bit-wide memory can be used. However, 36-bit EDO SIMMs
are accessed as only 32 bits wide because the FINALi chipset does not support
EDO SIMMs’ 32-bit data plus 4-bit error correction code (ECC) format. Only
traditional byte-wide parity is supported.
Boot ROM (C16)
The PCI CDP provides a 0.5-inch wide 32-pin DIP socket (part U14) for an
initialization or BIOS ROM device. The boot ROM is implemented on the M1487
chip’s LinkBus.
The boot ROM socket is populated with a BIOS that allows the PCI CDP to boot
and run DOS, Windows, or a real-time operating system (RTOS) immediately.
The platform must always boot from the boot ROM because of chipset limitations.
The chipset does not allow booting from another source such as DRAM-bus, ISAbus, or PCI-bus memory.
The boot ROM address space size defaults to 128 Kbytes, using ROM device
address bits A0–A16, but the board design provides jumpers JP32 and JP33 (at
locations C14 and B14) for configuring the ROM device’s A17 and A18 address
signals. The jumpers allow these address bits to be left High, tied Low, or connected
to their corresponding ISA bus signal. This provides flexibility in addressing
various sized Flash memory or ROM devices. See Figure 2-5 on page 2-22
Am486® Microprocessor PCI Customer Development Platform
2-21
JP33 (SA18)
1
2
JP32 (SA17)
3
1
2
5V
3
ISA Signal
1
2
3
(SA17 or SA18)
Boot ROM
ROM Pin
(A17 or A18)
ROM Jumper Locations
Individual Jumper Schematic
Figure 2-5. JP32 and JP33 Jumper Configuration (B14–C14)
By default, jumpers JP32 and JP33 are not connected, so ROM device pins A17
and A18 are tied High to address the 128-Kbyte BIOS range, E0000h–FFFFFh. If
these jumpers are changed to select ISA addressing for addresses
C0000h–DFFFFh, software must enable ROM addressing for this space via chipset
register index 12h, bits 2–1, and index 44h, bits 7–6.
For software compatibility, the boot ROM image appears from E0000h to FFFFFh
in the Am486 microprocessor’s lower 1-Mbyte address space. (This assumes that
a 128-Kbyte boot ROM is used.) At reset, however, the microprocessor is in a
special state that causes it to fetch its first instruction from FFFFFFF0h, at the top
of its extended memory range. To provide the first instruction, the boot ROM is
aliased to begin at FFFE0000h. One of the first instructions is typically a far jump,
which ends the special state and causes the microprocessor to continue execution
in the lower 1-Mbyte space.
Because boot ROM accesses are relatively slow, subsequent initialization code
typically copies the boot ROM contents into DRAM space and configures the
chipset’s Shadow Region Register to direct all boot ROM accesses to this shadow
image of the boot ROM.
2-22
Am486® Microprocessor PCI Customer Development Platform User’s Manual
ISA Flash Memory (F20)
The PCI CDP includes 1 Mbyte of 16-bit wide AMD Flash memory soldered onto
the board and located logically on the ISA Bus. A Vantis MACH programmable
logic device is used to control the interface between the ISA bus and the Flash
device. This provides an example of how a small amount of ISA Flash memory
might be implemented in customer designs.
The ISA Flash memory employs one Am29F800 top-sector boot block Flash
memory chip (part U58). This device occupies ISA memory space from address
F00000h to FFFFFFh. See Figure 2-6 on page 2-24. Software should access this
space in 16-bit words on even addresses.
Software can enable this ISA memory space by setting bit 3 of the chipset’s ROM
Function Register, index 12h. This disables DRAM access in the 1-Mbyte range
from F00000h to FFFFFFh, allowing access to the ISA memory space instead. If
bit 3 of index 12h is clear, access to the ISA Flash memory space is allowed only
if 15 Mbytes or less of DRAM is installed.
The Flash device is configured in word mode, so only 16-bit access is allowed.
The ISA address signals are routed so that ISA address bit A1 is routed to bit A0
on the Flash device, so it can only be addressed on even word boundaries. When
generating Flash command sequences, multiply the Flash address by two to
generate the correct ISA address. For example, writing address F00AAAh asserts
555h (AAAh ÷ 2) on the Flash device’s address pins.
The Am29F800 can be programmed using the JDEC single-power-supply Flash
standard command set. See the Am29F800 documentation for details. Software
for using Flash memory is provided with the PCI CDP. See the readme file on the
diskette that came with your kit for information about available utilities.
ISA space is limited to 16 Mbytes, and because the chipset provides limited support
for mapping ISA memory windows over DRAM, only 1 Mbyte of Flash memory
is provided. However, in a customer design with a small amount of DRAM, a larger
ISA Flash memory space can be situated between the top of DRAM and the 16
Mbyte ISA address limit. Note that access to memory on the ISA bus is relatively
slow when compared to DRAM or PCI bus transactions. See “EIP Flash Memory
(L21)” on page 2-25 for another approach.
Am486® Microprocessor PCI Customer Development Platform
2-23
(56 Mbyte) 37FFFFFh
3400000h
(52 Mbyte) 33FFFFFh
EIP Flash
Bank 1
EIP Flash
Bank 0
3000000h
(48 Mbyte) 2FFFFFFh
}
Accessed as
Fourth DRAM
Bank (Bank 3)
}
Enabled Via
Chipset Register
12h, Bit 3
EIP Location
Depends on
DRAM Size
DRAM
1000000h
(16 Mbyte) FFFFFFh
ISA Flash
Memory
F00000h
(15 Mbyte) EFFFFFh
DRAM
100000h
128 Kbyte
Boot ROM
(1 Mbyte) 0FFFFFh
DRAM
000000h
Figure 2-6. Typical Memory Map With ISA and EIP Flash Memory
2-24
Am486® Microprocessor PCI Customer Development Platform User’s Manual
EIP Flash Memory (L21)
The PCI CDP includes 8 Mbytes of Flash memory for execute-in-place (EIP)
applications. The EIP Flash memory is implemented in the fourth bank (bank 3)
of the DRAM controller’s address space. This memory consists of eight 29F800B
top-sector boot block Flash memory devices (parts U61, U62, U63, U64, U65,
U66, U67, and U68), soldered to the board and organized as two 32-bit wide Flash
memory banks.
The EIP Flash memory is controlled by an AMD 22V10 PAL® device programmed
to act as a simple DRAM-to-Flash interface that makes the Flash memory appear
to the M1489 DRAM controller as a single bank of 32-bit-wide EDO DRAM.
The provided BIOS enables the EIP Flash memory and configures the other DRAM
banks accordingly. To enable the EIP Flash memory, the BIOS programs the
chipset’s DRAM Configuration Register 2 (index 11h, bits 4–7) so the fourth
DRAM bank is accessed as 2-Mbyte by 8 (11 row, 10 column) DRAM chips. The
DRAM-to-Flash interface uses CPU address bit A22 for Flash memory bank
switching (A22 is routed to DRAM address bit 8 in the selected configuration).
Because of timing requirements, it is also necessary to program the chipset’s
DRAM Configuration and Timing Control registers (index 1Ah and 1Bh) to disable
hidden refresh, disable RAS-only refresh, select Fast access mode (not Fastest),
and select CAS before RAS refresh. This affects all four DRAM banks.
The EIP Flash memory can be accessed only by the CPU (no PCI bus-master access
to the EIP Flash is allowed), and all accesses are 32 bits wide. During normal
operation, the EIP Flash memory can be read like other DRAM memory, but data
cannot be written directly. Instead, the Am29F800 devices are programmed using
the JDEC single-power-supply Flash standard command set. See the Am29F800
documentation for details. Software for using Flash memory is provided with the
PCI CDP. See the readme file on the diskette that came with your kit for information
about available utilities.
Software that writes to the EIP Flash memory must make sure that accesses to the
Flash memory are not cached. This can be done by disabling Level-1 and Level-2
memory caching, or by appropriate programming of the page tables if paging is
enabled in the microprocessor.
Am486® Microprocessor PCI Customer Development Platform
2-25
Software that writes to the EIP Flash memory must also avoid any back-to-back
write cycles (including back-to-back non-burst cycles) to the EIP Flash memory
space. For reliable writes, always read or write a different DRAM bank (0, 1 or 2)
before and after writes to the EIP space. For example, read location 00000h, write
a value to Flash memory, and then read location 00000h again. (Simply running
the Flash programming software in the normal DRAM space does not ensure
reliable Flash programming, even though caching is disabled.)
Reading the EIP Flash memory does not entail any of the timing restrictions that
apply to writes. The microprocessor can read EIP Flash memory with any
combination of single-beat or burst read cycles.
The EIP Flash memory itself is organized in two banks. The base address of each
EIP bank depends on how much DRAM is installed in DRAM banks 0–2. The
board is shipped with 48 Mbytes installed, so by default the EIP first bank base
address is 3000000h (48 Mbytes + 1 byte), and the EIP second bank base address
is 3400000. See Figure 2-6 on page 2-24. Software can query the chipset’s DRAM
Configuration Registers (index 10h and 11h) to determine the size of banks 0–2.
See the chipset documentation for a description of these registers.
Each Flash device is configured in byte mode, with four devices in each EIP bank.
The CPU address signals are routed so that CPU address bit A2 is routed to bit A0
on the Flash devices, so the EIP space can only be addressed on even 4-byte (32bit double-word) boundaries. When writing to the devices’ control registers,
multiply the byte-mode register offset by four to generate the correct CPU address.
For example, if the bank base address is 3000000h, writing address 3002AA8h
asserts AAAh (2AA8h ÷ 4) on each Flash device’s address pins.
2-26
Am486® Microprocessor PCI Customer Development Platform User’s Manual
Real-Time Clock (G17)
The real-time clock (RTC) function in the chipset’s 1487 chip is initially disabled
on the PCI CDP. Instead, a separate DS1685 year-2000 (Y2K)-compliant RTC is
enabled.
The DS1685 provides the features of widely-used, non-Y2K-compliant RTCs such
as the DS1287. In addition, the DS1685 provides a byte for storing century
information, plus other registers and features not found in older RTC chips.
Because of its extra features, the DS1685 RTC is not completely compatible with
the DS1287. The provided BIOS operates correctly with the DS1685 RTC, but the
extra RTC features can cause unexpected behavior if a customer-supplied BIOS is
used in PC-AT compatible systems. One example is that the DS1685 provides some
interrupt sources that are not present in the DS1287 RTC. Customer-written
initialization software can take the following steps to disable the extended RTC
interrupts:
1. Set the DV0 bit in CMOS register A to enable access to the extended register
bank in the DS1685.
2. Write a value of 60h to CMOS address 4Bh to disable the extended interrupt
addresses.
3. Clear the Dv0 bit in CMOS register a to disable access to the extended register
bank (so that legacy software behaves as expected).
4. Read CMOS register C to clear any pending interrupts that were triggered while
the extended interrupts were enabled.
For DS1685 RTC programming details, see the DS1685/DS1687 3 Volt/5 Volt Real
Time Clock Data Sheet, and Application Note 77: DS1585/87, DS1685/87, and
DS17x85/87 Accessing Extended User RAM via Software, available from Dallas
Semiconductor, www.dalsemi.com.
If desired, the M1487’s internal RTC can be enabled instead of the DS1685 by
removing resistor part R58 from the back side of the board, beneath location I14.
(See Sheet 16 of the schematics in Appendix B.)
Am486® Microprocessor PCI Customer Development Platform
2-27
ISA Bus Interface (A7)
The PCI CDP is populated with two standard ISA bus connectors (parts SL1 and
SL2) for developers who need to use ISA devices in their development systems.
The ISA bus interface is provided by the chipset’s M1497 southbridge.
ISA devices that use the F00000h to FFFFFFh address space cannot be used on
the PCI CDP, because this area is used by the ISA Flash memory bank. See “ISA
Flash Memory (F20)” on page 2-23.
ISA devices that use the C0000h to DFFFFh address space cannot be used if this
space is enabled for boot ROM addressing. See “Boot ROM (C16)” on page 2-21.
Boot ROM addressing in this range might also cause conflicts with devices using
the D0000h to DFFFF address space.
Super I/O (C19)
The PCI CDP uses an M5113 Super I/O chip to provide standard PC input/output
functions. The Super I/O chip provides:
•
•
•
•
Two 16450/16550-compatible serial ports
IrDA 1.0 infrared interface
AT-compatible parallel port
82077-compatible floppy disk interface
The BIOS supplied with the platform configures these peripherals to operate as
they would on a standard PC. See the Acer Laboratories Inc. M5113 data sheet for
detailed configuration information.
2-28
Am486® Microprocessor PCI Customer Development Platform User’s Manual
Serial Ports (E23 and C23)
The platform’s Super I/O device includes two 16550-compatible serial ports. These
are routed to two 9-pin D-shell connectors, J8 and J9. See Figure 2-7 and Table 28. Light-emitting diodes (LEDs) are provided near each serial port to indicate
transmit and receive activity.
1
5
Notes:
6
9
See Figure 2-3 on page 2-5 for connector locations.
Figure 2-7. Serial Port Connector Pins (J8, J9)
Table 2-8. Serial Port Pin/Signal Table
Pin
Signal
1
DCD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RIN
IrDA Interface (A19)
The Super I/O device is configured to support infrared data transfers via an IrDA
LED module, part U44. The serial data transmission rates include all of the UART
bit rates (up to 115 Kbps).
The IrDA LED module is connected to dedicated pins on the M5113 Super I/O chip.
The IrDA interface shares one UART with serial port COM2. A control bit in the M5113
chip controls whether the UART communicates over the COM2 port or the IrDA port.
See the M5113: Enhanced Super I/O Controller Data Sheet, available from Acer
Laboratories Inc. See www.acerlabs.com for contact information.
Am486® Microprocessor PCI Customer Development Platform
2-29
Parallel Port (A22)
Figure 2-8 and Table 2-9 show the parallel port pinouts.
13
1
Notes:
25
14
See Figure 2-3 on page 2-5 for connector locations.
Figure 2-8. Parallel Port Socket (J4)
Table 2-9. Parallel Port Pin/Signal Table
Pin
Signal
1
STRB
2–9
PD0–PD7
10
ACK
11
BUSY
12
PE
13
SLCT
14
AFDT
15
ERROR
16
INIT
17
SLCTIN
18–25
GND
Floppy Disk Drive (E20)
The PCI CDP’s Super I/O chip provides a floppy disk controller to support the
system’s floppy disk drive connector (part J6). Either a 5.25-inch or 3.5-inch floppy
disk drive can be installed with a standard 34-pin connector. For details, see “Board
Installation” on page 1-4.
2-30
Am486® Microprocessor PCI Customer Development Platform User’s Manual
IDE Hard Drive (L4 and M4)
The PCI CDP contains two standard 40-pin IDE connectors (parts J5 and J7). The
M1498 chip provides the IDE hard drive controller. For details on how to connect
a single IDE hard drive to the PCI CDP, see “Board Installation” on page 1-4.
An LED is located next to each IDE connector to indicate IDE activity. IDE devices
on connector J5 can generate interrupts on IRQ14, and devices on connector J7
can generate interrupts on IRQ15. This interrupt mapping can be changed by
reprogramming the chipset configuration registers.
Each connector supports one master and one slave device. If only one device is
attached to an IDE connector, that device must be configured as an IDE master. If
a two-position cable is used to attach two devices to a single IDE connector on the
board, one of the devices must be configured as an IDE master and the other as an
IDE slave. See each IDE device’s documentation for configuration details.
Keyboard (O1)
The PCI CDP provides a standard AT-compatible keyboard connector (part J1)
implemented via the chipset’s M5402 mouse/keyboard controller chip (part U79
at location D15).
Mouse (M1)
A port is provided for a PS/2-style mouse (connector J11). This device is driven
by the M5402 mouse/keyboard controller chip.
Am486® Microprocessor PCI Customer Development Platform
2-31
CPU Voltage Adjustment (Q15–Q16)
The CPU power supply voltage can be adjusted by moving jumper JP4 or both
jumpers JP2 and JP3 on the PCI CDP. Selectable voltages are 2.5 V, 3.3 V, 3.45
V, or 5 V. Figure 2-9 shows the default configuration of the CPU voltage jumpers
(set for 3.45 V).
To select either 3.3-V or 2.5-V CPU voltage, leave JP2 and JP3 set to “ADJ” and
move jumper JP4 to the desired voltage.
To select 5-V operation, move both jumpers JP2 and JP3 to their “5 V” position.
JP2
JP3
ADJ
ADJ
JP4
3.45 V
3.3 V
5V
5V
2.5 V
Figure 2-9. Voltage Jumper Default Configuration (Q15–Q16)
!
2-32
CAUTION: Jumpers JP2 and JP3 must both be placed in the
same position. Positioning JP2 and JP3 differently can damage
the PCI CDP.
Am486® Microprocessor PCI Customer Development Platform User’s Manual
Power Supply Connectors (N2 and P2)
The PCI CDP accepts standard PC-style motherboard power connectors to supply
power to the CPU and all onboard components. To ensure proper functionality of
the power module, the board’s PC power supply sockets must be inserted correctly
onto the board.
!
CAUTION: It is important that the ground wires of one
connector are adjacent to the ground wires of the other.
See Figure 2-10.
-5 GND
Back of
IDE Connector
+5
GND
-12
+12
+5
PWG
PS2 Power Conn
Power Supply Conn.
Edge of Board
Figure 2-10. Ground Wire Connections
Am486® Microprocessor PCI Customer Development Platform
2-33
Reset and Interrupt Switches and Headers
Three push-button switches are provided so the user can generate RESET, SMI,
and NMI events. In addition, a two-pin header is provided for the RESET signal
so that an external pushbutton switch can be attached. These switches and headers
are routed to the appropriate chipset signals as listed in Table 2-10.
Table 2-10. Switch Summary
Part
Signal
Description
Location in
Figure 2-3
on Page 2-5
See App. B
Schematics
on:
SW1,
JP34
PWG
Used to reset the system.
N5, K23
Sheet 17
SW2
NMI
Used to generate an NMI
event.
K6
Sheet 17
SW3
EXTSMI
Used to generate an SMI
event.
H11
Sheet 17
Embedded BIOS software typically enters its debugging monitor when an NMI
event is generated. In addition to pressing the NMI switch, an NMI event can be
caused by a PCI-bus parity error, a DRAM parity error, or an ISA-bus IOCHCK
error.
2-34
Am486® Microprocessor PCI Customer Development Platform User’s Manual
Resistor Options
The PCI CDP includes a number of resistor populate/depopulate options, which
are listed in Table 2-11. Many are used only as manufacturing options, but some
may be useful for exploring design options or better emulating a target design.
Table 2-11. Resistor Options
Part
Signal
Description
Location in
Figure 2-3
on Page 2-5
See App. B
Schematics
on:
R11
CLKMUL
When R11 is populated and R148 is
removed, the clock multiplier for an
Am486DX2-66 microprocessor is
selected.
M17
Sheet 2
R58
ENRTC
When populated (the default), the
M1487 chip’s internal RTC is disabled
and the DS1685 Y2K-compliant RTC
is enabled.
I14 (back
side)
Sheet 16
R59
CMPSTJ
When removed (the default), the 1X
CPU-to-PCI bus frequency multiplier
is selected. (1X is the only multiplier
supported in this design.)
I14 (back
side)
Sheet 16
R70
TURBO
When R70 is removed and R71 is
populated (the default), the M1487’s
TURBO signal is High (asserted). This
input must be enabled by software to
have any effect.
I14 (back
side)
Sheet 17
R71
TURBO
When R71 is populated and R70 is
removed (the default), the M1487’s
TURBO signal is asserted. This input
must be enabled by software to have
any effect.
I14 (back
side)
Sheet 17
R93
CLKPU2
When R93 is populated and R176 is
removed, the system clock speed is 25
MHz.
J3 (back
side)
Sheet 18
Am486® Microprocessor PCI Customer Development Platform
2-35
Table 2-11. Resistor Options (Continued)
Part
Signal
Description
Location in
Figure 2-3
on Page 2-5
See App. B
Schematics
on:
R145
KBINHIBIT
When R145 is populated and R146 is
removed (the default), the M5042
keyboard controller is enabled.
D15 (back
side)
Sheet 25
R146
KBINHIBIT
When R145 is populated and R146 is
removed (the default), the M5042
keyboard controller is enabled.
D15 (back
side)
Sheet 25
R148
CLKMUL
When R148 is populated and R11 is
removed (the default) the clock
multiplier for an Am486DX4-100 or
Am486DX5-133 microprocessor is
selected.
M17
Sheet 2
R170
IBCSTJ
When populated (the default), the
M1487’s internal keyboard controller is
disabled. (The M1487 internal
keyboard controller function is
discontinued. The M5042 is provided
instead.)
I14 (back
side)
Sheet 16
R176
CLKPU2
When R176 is populated and R93 is
removed (the default), the system clock
speed is 33 MHz.
J3
Sheet 18
2-36
Am486® Microprocessor PCI Customer Development Platform User’s Manual
Appendix A
Default Settings
This chapter lists the default settings of the Am486 microprocessor PCI customer
development platform when it is shipped.
Table A-1. Default Jumper Settings
Part
Signal
Location in Default Position
Figure 2-3
on Page 2-5
Position Marking
JP2
CPUVCC3
Q15
Pins 2–3
“ADJ”
JP3
CPUVCC3
Q16
Pins 2–3
“ADJ”
JP4
CPUV1,
CPUV2,
CPUV3
R15
Pins 1–2
“3.45 V”
JP32
Boot ROM
A17
C14
No connection
(No marking)
JP33
Boot ROM
A18
B14
No connection
(No marking)
Am486® Microprocessor PCI Customer Development Platform
A-1
A-2
Am486® Microprocessor PCI Customer Development Platform User’s Manual
Appendix B
Bill of Materials and Schematics
The bill of materials for the Am486 microprocessor PCI customer development
platform (CDP) begins on page B-2.
The actual schematics used to build the PCI CDP begin on page B-10.
Am486® Microprocessor PCI Customer Development Platform
B-1
Board Bill of Materials (BOM)
Item
Qty.
Reference
Part
Package
Description
1
119
C1, BC1, BC2, C3, BC3, C4,
BC4, C5, BC5, C6, BC6, C7,
BC7, C8, BC8, BC9, BC10,
BC11, BC12, BC13, BC14,
BC15, BC16, BC17, BC18,
BC19, BC20, BC21, BC22,
BC23, BC24, BC25, BC26,
BC27, BC28, BC29, BC30,
BC31, BC32, BC33, BC34,
BC35, C36, BC36, C37, BC37,
C38, BC38, C39, BC39, BC40,
BC41, BC42, BC43, BC44,
BC45, BC46, C47, BC47, C48,
C50, C52, C65, C67, C69, C70,
C71, C72, C73, C74, C75, C76,
C77, C79, C80, C81, C82, C88,
C89, C90, C91, C92, C93, C94,
C95, C100, C105, C111, C112,
C114, C115, C122, C123, C124,
C125, C126, C127, C128, C129,
C130, C131, C132, C133, C134,
C135, C136, C137, C156, C157,
C160, C166, C167, C168, C169,
C170, C171, C172, C173, C174
0.1 µF
805
RC0805, X7R, ±10%,
50 V
2
1
BT1
3 V Coin cell (socket)
3
14
C9, C10, C11, C12, C13, C34,
C35, C83, C96, C97, C102,
C103, C104, C109
0.01 µF
805
RC0805, X7R, ±10%,
50 V
4
6
C14, C28, C58, C64, C158,
C159
47 pF
805
RC0805, NPO, ±5%,
50 V
5
33
C15, C16, C17, C18, C19, C20,
C21, C22, C23, C24, C25, C26,
C27, C29, C30, C31, C32,
C138, C139, C140, C141, C142,
C143, C144, C145, C146, C147,
C148, C149, C150, C151, C152,
C153
180 pF
805
RC0805, NPO, ±10%,
50 V
KEYSTONE 103 or 106
Notes:
An asterisk (*) indicates parts that are not populated.
B-2
Am486® Microprocessor PCI Customer Development Platform User’s Manual
Item
Qty.
Reference
Part
Package
Description
6
10
C33, C41, C42, C43, C46, C56,
C57, C60, C66, C154
15 pF
805
RC0805, NPO, ±5%,
50 V
7
1
C40
1000 pF
805
RC0805, 1/8 W, ±5%,
50 V
8
2
C44, C45
39 pF
805
RC0805, NPO, ±5%,
50 V
9
4
C53, C54, C155, C161
10 pF
805
RC0805, NPO, ±5%,
50 V
10
1
C55
22 pF
805
RC0805, NPO, ±5%,
50 V
11
1
C68
6.8 µF
C-CASE
TANTALUM, C-CASE,
16 V, ±20%
12
2
C86, C78
2.2 µF
B-CASE
TANTALUM, B-CASE,
20 V, ±20%
13
23
TC2, TC3, TC9, TC11, TC12,
TC13, TC14, TC15, TC16,
TC17, TC18, TC19, TC22,
TC23, TC24, TC25, C84, C87,
C106, C107, C108, C110, C113
10 µF
C-CASE
TANTALUM, C-CASE,
16 V, ±20%
14
1
C85
1 µF
A-CASE
TANTALUM, A-CASE,
16 V, ±20%
15
2
C98, C99
33 pF
805
RC0805, NPO, ±5%,
50 V
16
1
C101
0.001 µF, 2 KV
(MIN.)
TH
SPRAGUE 30GAD10
17
4
C162, C163, C164, C165
0.015 µF
805
RC0805, X7R, ±10%,
50 V
18
6
D1, D5, D6, D7, D8, D9
MMBD4148 (SOT23)
SOT-23
VISHAY MMBD4148
19
1
D10
LED (SOT23)
SURSOT23
LUMEX
SSL-LX15IC-RP
20
4
D11, D12, D13, D14
LED (SOT23)
SURSOT23
LUMEX
SSL-LX15GC-RP
21
2
D15, D17
LED (2mA, SOT23)
SOT-23
KINGBRIGHT
KM-23LSGC
Notes:
An asterisk (*) indicates parts that are not populated.
Am486® Microprocessor PCI Customer Development Platform
B-3
Item
Qty.
Reference
Part
Package
Description
22
2
D16, D18
LED (2mA, SOT23)
SOT-23
KINGBRIGHT
KM-23LEC
23
2
F1, F2
FUSE, 0.5A
1206
BUSSMAN
3216FF-500mA
24
1
HS1
HEATSINK (TO-220)
25
7
JP2, JP3, JP29, JP30, JP31,
JP32, JP33
HEADER 3X1
TH-1X3
1X3 HEADER; 0.025”
SQ. POST AMP 87224-3
26
1
JP4
HEADER 3X2
TH-2X3
1X3 HEADER; 0.025”
SQ. POST
AMP 103186-3
27
1
JP34
HEADER 2X1
TH-1X2
1X2 HEADER; 0.025”
SQ. POST AMP 87224-2
28
1
J1
KYBD CONN
TH
AMP 212044-1
29
2
J2, J3
PWR-CN6
TH
MOLEX
15-48-0106
30
1
J4
Parallel Port
DB25
AMP 745967-7
31
2
J7, J5
CNN-40C
TH-2X20SHRD
2X20 HEADER; SHRD
AMP 103308-8
32
1
J6
CNN-34C
TH-2X17SHRD
2X17 HEADER; SHRD
AMP 103308-7
33
2
J8, J9
SERIAL PORT
DB9
AMP 745410-1
34
1
J10
AMP RJ45A
TH
AMP 555153-1
35
1
J11
MOUSE_CON
TH
AMP 750329-2
36
1
LS1
SPEAKER
37
9
L1, L2, L3, L4, L5, L6, L7, L8,
L9
FB
38
10
MT1, MT2, MT3, MT4, MT5,
MT6, MT7, MT8, MT9, MT10
Mounting Hole
39
1
P31
40
2
P35, P48
THERMALLOY ML32
ISL PROD. INTL.
ISL-8032VT
RC1206
MURATA ERIE
BLM32A07
COND60
AMPMOD
50, 1X30,
R-ANG
AMP 104069-7
HEADER2X5; SHRD
TH-1X5SHRD
2X5 HEADER; SHRD
AMP 103308-1
Notes:
An asterisk (*) indicates parts that are not populated.
B-4
Am486® Microprocessor PCI Customer Development Platform User’s Manual
Item
Qty.
Reference
Part
Package
Description
41
11
P36, P38, P39, P40, P41, P42,
P43, P44, P45, P46, P47
HP CONN
TH-1X10SHRD
3M:2520-6003UB or
AMP 103308-5
42
1
Q1
MMBT3906 (SOT23)
SOT-23
VISHAY MMBT3906
43
2
Q4, Q2
MMBT3904 (SOT23)
SOT-23
VISHAY MMBT3904
44
1
Q5
TIP127
TO-220
MOTOROLA TIP127
45
9
RN1, RN2, RN3, RN4, RN8,
RN9, RN10, RN11, RN12
33-8B
CTS 743 08-3 330 J TR
46
7
RN5, RN6, RN7, RN13, RN14,
RN15, RN16
22-8B
CTS 743 08-3 220 J TR
47
12
RP1, RP2, RP5, RP6, RP7,
RP12, RP14, RP16, RP17,
RP18, RP19, RP20
10 K-10P
SIP10
CTS 770 10 1 103 SP
48
2
RP4, RP3
1 K-10P
SIP10
CTS 770 10 1 102 SP
49
6
RP8, RP9, RP10, RP11, RP15,
RP21
4.7 K-10P
SIP10
CTS 770 10 1 472 SP
50
1
RP13
330-8P
SIP8
CTS 770 8 1 331 SP
51
19
R3, R4, R5, R13, R19, R49,
R50, R52, R61, R64, R68, R76,
R77, R91, R104, R131, R141,
R142, R175
10 K
805
RC0805, 1/8 W, ±5%,
50 V
52
17
R6, R20, R21, R34, R58, R78,
R85, R103, R105, R118, R130,
R134, R170, R173, R174, R177,
R178
1K
805
RC0805, 1/8 W, ±5%,
50 V
53
5
R7, R8, R27, R81, R124
33
805
RC0805, 1/8 W, ±5%,
50 V
54
1
R11
*10 K
805
RC0805, 1/8 W, ±5%,
50 V
55
6
R14, R15, R16, R17, R18, R147
22
805
RC0805, 1/8 W, ±5%,
50 V
56
11
R22, R31, R35, R36, R38, R41,
R42, R54, R99, R100, R101
10
805
RC0805, 1/8 W, ±5%,
50 V
57
1
R23
27.4 K, 1%
805
RC0805, 1/8 W, ±1%,
50 V
Notes:
An asterisk (*) indicates parts that are not populated.
Am486® Microprocessor PCI Customer Development Platform
B-5
Item
Qty.
Reference
Part
Package
Description
58
1
R25
25.5 K, 1%
805
RC0805, 1/8 W, ±1%,
50 V
59
1
R26
15.8 K, 1%
805
RC0805, 1/8 W, ±1%,
50 V
60
10
R28, R94, R97, R135, R136,
R137, R138, R156, R158, R160
330
805
RC0805, 1/8 W, ±5%,
50 V
61
1
R29
15.0 K, 1%
805
RC0805, 1/8 W, ±1%,
50 V
62
4
R30, R65, R139, R140
100
805
RC0805, 1/8 W, ±5%,
50 V
63
15
R33, R47, R57, R119, R120,
R121, R122, R123, R127, R148,
R163, R165, R167, R169, R176
0
805
RC0805, 1/8 W, ±5%,
50 V
64
9
R39, R44, R45, R75, R90, R92,
R106, R171, R172
4.7 K
805
RC0805, 1/8 W, ±5%,
50 V
65
1
R48
51 K
805
RC0805, 1/8 W, ±5%,
50 V
66
1
R59
*1 K
805
RC0805, 1/8 W, ±5%,
50 V
67
5
R62, R63, R149, R150, R151
270
805
RC0805, 1/8 W, ±5%,
50 V
68
2
R70, R146
*2.2 K
805
RC0805, 1/8 W, ±5%,
50 V
69
9
R71, R80, R95, R96, R98,
R145, R157, R159, R161
470
805
RC0805, 1/8 W, ±5%,
50 V
70
1
R79
10M
805
RC0805, 1/8 W, ±5%,
50 V
71
1
R93
*4.7 K
805
RC0805, 1/8 W, ±5%,
50 V
72
1
R102
47
805
RC0805, 1/8 W, ±5%,
50 V
73
1
R107
100, 1%
805
RC0805, 1/8 W, ±1%,
50 V
74
2
R108, R109
49.9, 1%
805
RC0805, 1/8 W, ±1%,
50 V
Notes:
An asterisk (*) indicates parts that are not populated.
B-6
Am486® Microprocessor PCI Customer Development Platform User’s Manual
Item
Qty.
Reference
Part
Package
Description
75
4
R110, R111, R112, R113
75, 1%
805
RC0805, 1/8 W, ±1%,
50 V
76
3
R114, R115, R117
1.00 K, 1%
805
RC0805, 1/8 W, ±1%,
50 V
77
1
R116
22 K, 1%
805
RC0805, 1/8 W, ±1%,
50 V
78
4
R152, R153, R154, R155
1.5 K
805
RC0805, 1/8 W, ±5%,
50 V
79
4
R162, R164, R166, R168
*0
805
RC0805, 1/8 W, ±5%,
50 V
80
3
SIMM1, SIMM2, SIMM0
SIMM72
AMP 822030-3
81
2
SLT1, SLT2
PCI Slot
AMP 145154-4
82
2
SL1, SL2
ISA AT Connector
AMP 645169-3
83
3
SW1, SW2, SW3
PBNO
C&K KT11P2SM
84
4
TC1, TC4, TC7, TC10
47 µF
D-CASE
TANTALUM, D-CASE,
16 V, ±20%
85
4
TC5, TC6, TC20, TC21
10 µF
D-CASE
TANTALUM, D-CASE,
25 V, ±20%
86
1
TC8
100 µF
E-CASE
TANTALUM, E-CASE,
16 V, ±20%
87
1
T1
PE68515
88
1
U1
74F245
SOL20
SIGNETICS 74F245D
89
1
U5
M1489
PQFP208
ALi M1489
90
1
U6
LP2951
SO8
NATIONAL LP2951CM
91
4
U7, U8, U9, U10
128 Kx8-15
SOJ32(0.3”
/0.4”)
128 Kx8, 15 ns, Corner
Vcc/GND Pins, SOJ32
92
1
U11
32 Kx8-15
SOJ28(.3”)
32 Kx8, 15 ns, Corner
Vcc/GND Pins,
0.3”SOJ28
93
1
U14
Am29F010-90
DIP32(0.6”
)(SOCKET
)
AMD
Am29F010-90PC
94
1
U15
74F04
SO14
SIGNETICS 74F04D
PULSE ENGR.
PE-68515
Notes:
An asterisk (*) indicates parts that are not populated.
Am486® Microprocessor PCI Customer Development Platform
B-7
Item
Qty.
Reference
Part
Package
Description
95
1
U17
IMI SC464
SSOP28
INTL. MICROCKTS.
INC. IMISC464AYB
96
1
U21
M1487
PQFP160
ALi M1487
97
1
U22
DS1685-5
DIP24(0.65
0”)
DALLAS SEMI.
DS1685-5
98
2
U24, U82
74F08
SO14
SIGNETICS 74F08D
99
1
U25
Am486
Microprocessor, PGA
PGA169
AMD (AMP SOCKET1
916504-2)
100
11
U26, U28, U30, U31, U32, U36,
U38, U40, U47, U49, U70
74ABT16244
SSOP48
SIGNETICS
74ABT16244ADL
101
1
U42
74ABT244
SOL20
SIGNETICS
74ABT244D
102
1
U43
M5113A
PQFP100
ALi M5113A
103
1
U44
TFDS6000
SMT
TEMIC TFDS6000D
104
2
U46, U45
RS232-5V
SSOP28
LINEAR TECH
LTC1349CG
105
1
U51
Am79C972
(PQR160)
PQR160
AMD Am79C972KC
106
1
U52
LXT970QC
MQFP64
LEVEL ONE
LXT970QC
107
1
U53
MC33269DT-3.3
DPAK
MOTOROLA
MC33269DT-3.3
108
1
U54
NM93C46N
DIP8
NATIONAL
NM93C46N
109
1
U55
MACH221
PQFP-100
AMD MACH221SP-7
110
9
U56, U61, U62, U63, U64, U65,
U66, U67, U68
29F800-55 TSOP48
TSOP48
AMD
AM29F800BT-55EC
111
2
U60, U80
PALCE22V10_PLCC
(5ns)
PLCC28
AMD
PALCE22V10H-5JC
112
1
U69
74ABT373
SOL20
SIGNETICS
74ABT373AD
113
1
U71
74ABT16245
SSOP48
SIGNETICS
74ABT16245BDL
114
4
U72, U73, U74, U75
Hex Display
TH
TI TIL311
Notes:
An asterisk (*) indicates parts that are not populated.
B-8
Am486® Microprocessor PCI Customer Development Platform User’s Manual
Item
Qty.
Reference
Part
Package
Description
115
1
U77
74F32
SO14
SIGNETICS 74F032D
116
1
U78
74F06
SO14
SIGNETICS 74F06D
117
1
U79
M5042
PLCC44
ALi M5042
118
1
U81
NM93C66M8
SO8
NATIONAL
NM93C66M8
119
1
U83
74F14
SO14
SIGNETICS 74F14D
120
1
U84
74ABT125
SO14
Signetics 74ABT125D
121
1
Y1
24 MHz_SMD
ECLIPTEK
ECSMA-24.00MTR
122
1
Y2
14.318 MHz_SMD
ECLIPTEK
ECSMAT-14.318MTR
123
2
Y4, Y6
32.768 KHz_SMD
ECLIPTEK
ECPSM29T-32.768KTR
124
1
Y5
25 MHz_SMD
ECLIPTEK
ECSMA-25.000MTR
127
1
XU14
DIP32(0.6”)
SOCKET
SAMTEC ICA-632-SGG
128
1
XBT1
3.3 V LITHIUM
COINCELL
TOSHIBA CR2032
129
1
U25-HS
FANSINK FOR CPU
THERMALLOY 2321BTCM-42S-PF17
130
5
XXX
JUMPERS (0.1”)
FOR 0.025”
SQ. POSTS
Notes:
An asterisk (*) indicates parts that are not populated.
Am486® Microprocessor PCI Customer Development Platform
B-9
Schematics
The schematics that follow are the actual CAD schematics used to build the PCI
CDP. These schematics are useful for understanding and modifying the PCI CDP.
Because the development platform is based on a particular chipset and incorporates
many different possible design options, actual Am486 microprocessor-based
designs might be considerably different.
B-10
Am486® Microprocessor PCI Customer Development Platform User’s Manual
1
2
3
4
5
Table of Contents
A
B
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Am486 Microprocessor
PCI Customer
Development Platform
1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11:
12:
13:
14:
15:
16:
17:
18:
19:
20:
21:
22:
23:
24:
25:
26:
COVER.SCH
CPU.SCH
CPU_POWER.SCH
CPU_VIS1.SCH
CPU_VIS2.SCH
M1489.SCH
L2_CACHE.SCH
SIMM_SKTS.SCH
EIP_MEM1.SCH
EIP_MEM2.SCH
PCI_CONN.SCH
PCI_VIS.SCH
ENET1.SCH
ENET2.SCH
IDE.SCH
M1487.SCH
ROM_MISC.SCH
CLOCK.SCH
ISA_CONN.SCH
SUPER_I/O.SCH
SERIAL_PARALLEL.SCH
ISA_MEM1.SCH
ISA_MEM2.SCH
RTC_TIP.SCH
KEYBOARD.SCH
CPU_PINOUT.SCH
A
B
Am486 Microprocessor Development System With PCI Expansion and On-Board Am79C972 100MB/s Ethernet Controller
Rev 2.0 (continued):
Rev 1.0: Original design
Rev 1.1: Minor modifications after Design Review
Rev 1.2: Added External 8042 Style Keyboard Controller (SH24)
Removed Support for M1487 Internal KBC (SH15)
Removed Keyboard Interface From Clock Page (SH17)
Changed design name to Am486PCI C.D.P.
C
SH17: Added jumpers to allow mulitple BIOS images in a single Flash ROM device
Removed 1 diode from VBAT generation circuit
Added new NMI generation circuit and spare ’F14 gates
Added jumper for external RESET# pushbutton
SH18: Fixed wiring error on crystal
Removed MCLK1 net (16MHz) and rewired MCLK2 to drive all 33MHz clock nets
Removed CLKCNTL signal from DOZE# pin of U17
Rev 1.3: Added Extra Bypass Capacitors (SH5 & SH14 & SH15 & SH17)
Swapped Around Some Signals Within Resistor Networks (SH6 & SH20)
Renamed MCLK1 net to M_CLK1 (SH24)
Added 0-ohm resistor to make pin 10 & 11 pullup work (SH17)
Added Pin to HS1 for NetLister (SH3)
Fixed Error in 3.3V Regulator Circuit (SH12)
SH20: Removed unneeded 0-ohm resistors from Super I/O chip
Fixed wiring error on crystal
Added ’ABT125 buffer to drive serial port LEDs
C
SH22: MACH device outputs changed for new ISA Flash support
SH23: Changed ISA Flash to 1MByte (512Kx16)
Rev 1.4: Rearranged Clock Nets to Facilitate Routing (SH17)
Changed Some Components to Standard Values
(50ohm to 49.9ohm, 1% on SH 13 and 40pF to 39pF,
5% on SH19)
SH24: Removed unneeded logic from RTC interface
Added inverter to generate proper CS# for RTC chip
Fixed wiring error on crystal
Grounded U22-pin 22
Removed 1 unused OR gate for use on SH17
Rev 2.0: Changed SIP resistor packs to 10-pin (SH2, SH3, SH11, SH15, SH16, SH17, SH19, SH20 & SH21)
Changed 330ohm SIP Resistor Pack to 8-pin (SH19)
SH3: Added diagram to correct Power Connector Footprint
SH25: Switched mouse connector to verticle type
Changed ’F06 symbol to show o/c
SH4 & 5: Broke CPU Logic Analyzer Headers into 2 pages
Added PAL to gnerate CPU A0 and A1 and also generate a Logic Analyzer Qualify signal
Buffered BE[0..3], RDY#, BRDY#, and ADS# through the new PAL
D
D
SH9: Added better explanation of EIP Flash memory operation
SH11: Added configuration information for PCI slots
Removed circuit to generate PCI PERR# to cause
M1487 to assert NMI to Am486 microprocessor
Rev 2.1: Updated revision level and prototype warning on all sheets
SH17: Modified ROM jumpers to allow mulitple BIOS images in a single Flash ROM
device and support 256K or 512K BIOS for non-PC applications
SH22: Added XBUSCSJ signal to Mach device so it does not respond when Am486
fetches the reset vector at FFFF FFF0
SH14 &15 &20: Connected pins 1 and 2 on all LEDs for greater
purchasing/manufacturing flexibility
SH13: Added a 4K serial EEPROM for user parameters and mux. circuit to daisy chain it off the 1K device.
’972 E/net device loads its configuration from 1K SEEPROM.
CLKCNTL signal from M1487 used to select 1K or 4K SEEPROM.
SH14: Swapped R107 and R109; R109 is 49.9ohm, 1%
Fixed wiring error on crystal
SH15: Added 5 more 0.1uF bypass capacitors for new chips (’F14, ’ABT125, 22V10, ’F08, ’C66)
SH16: Fixed wiring error on crystal
Fixed wiring error in generation of low-active reset signal RSTDRV#
Removed unused inverter (used on SH24)
Changed net on NMI pin to 1487NMI for use in new circuit
Changed R58 to be a populated component
(C) Advanced Micro Devices, Inc.
(800) 222-9323
E
E
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
Title
Note: Unless otherwise noted all logic operates off a 5V power supply
Size
Date: Friday, December 04, 1998
Note: Unless otherwise stated the capacitors are a 0805 package and 10% Tol.
2
Rev
2.1
COVER.SCH
Note: Unless otherwise stated the resistors are a 0805 package and 5% Tol.
1
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
3
4
Sheet
5
1
of
26
1
2
3
4
5
Am486 MICROPROCESSOR, PULLUPS, AND JTAG INTERFACE
STPCLKJ
PCD_CACH
CPURST
HITMJ
INV
A
A
VCC
RP1
1
C
K2VCC
K2VCC
GD31
GD30
GD29
GD28
GD27
GD26
GD25
GD24
GD23
GD22
GD21
GD20
GD19
GD18
GD17
GD16
GD15
GD14
GD13
GD12
GD11
GD10
GD9
GD8
GD7
GD6
GD5
GD4
GD3
GD2
GD1
GD0
C
DP0
DP1
DP2
DP3
13
47
83
10
12
44
29
74
INV(DX2INC)
HITM#(DX2INC)
SRESET
CACHE#(DX2INC)
STPCLK#
M/IO#
D/C#
W/R#
LOCK#
PLOCK#
ADS#
BLAST#
BREQ
HLDA
PWT
PCD
FERR#
A31
A30
A29
A28
A27
A26
A25
A24
A23
A22
A21
A20
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
Enhanced Am486
Microprocessor
(SOCKET1-PGA169)
DP0
DP1
DP2
DP3
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
7
9
11
20
21
22
59
64
71
76
77
82
89
94
95
100
101
106
118
120
139
158
160
161
162
163
164
166
3
14
33
31
DP[0..3]
HITMJ
PULLHI1
111
104
112
110
134
169
151
133
116
98
88
48
MIOJ
DCJ
WRJ
LOCKJ
PLOCK#
ADSJ
BLAST#
BREQ
PCHK#
SMI#
WB/WT#(DX2INC)
UP#
SMIACT#
CLKMUL(DX2INC)
PWT
PCD
FERRJ
70
86
87
92
BEJ3
BEJ2
BEJ1
BEJ0
119
115
114
136
153
154
137
124
155
125
123
126
122
140
121
127
142
157
128
159
147
165
129
148
131
167
130
168
150
132
GA31
GA30
GA29
GA28
GA27
GA26
GA25
GA24
GA23
GA22
GA21
GA20
GA19
GA18
GA17
GA16
GA15
GA14
GA13
GA12
GA11
GA10
GA9
GA8
GA7
GA6
GA5
GA4
GA3
GA2
SKT1_NC
135
27
30
45
46
152
B
HDLA
BEJ[0..3]
GD[0..31]
GD[0..31]
DP[0..3]
109
65
79
5
D31
D30
D29
D28
D27
D26
D25
D24
D23
D22
D21
D20
D19
D18
D17
D16
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
TCK
TDI
TDO
TMS
D
25
43
8
42
40
41
23
6
4
2
19
1
18
36
54
85
67
91
53
73
35
61
52
66
97
96
84
103
78
107
108
113
2
3
4
5
6
7
8
9
10
10K-10P
BE3#
BE2#
BE1#
BE0#
VOLDET(DX2NC)
BOFFJ
AHOLD
EADSJ
KENOJ
FLUSHJ
IGNNEJ
BS16J
BS8J
A20MJ
RDYOJ
BRDYOJ
C40
1000pF
B
CLK
RESET
INTR
NMI
HOLD
BOFF#
AHOLD
EADS#
KEN#
FLUSH#
IGNNE#
BS16#
BS8#
A20M#
RDY#
BRDY#
U25
BEJ[0..3]
GA[2..31]
GA[2..31]
RP8
1
C
O2
O3
O4
O5
O6
O7
O8
O9
O10
2 GA31
3 GA30
4 GA29
5 GA28
6 GA27
7 GA26
8 GA25
9 GA24
10
C
4.7K-10P
VCC
R91
10K
PCHKJ
SMIJ
WB-WT#
PULLHI1
SMIACKJ
D
VCC
55
R11
*10K
Am486-PGA
156
INTR
INC
INC(DX2NC)
37
50
16
32
62
58
17
34
68
49
15
51
57
56
69
80
ZRSTDRV
INC(DX4VCC5)
CPUCLK
NMI
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
24
26
28
38
39
60
63
72
75
81
90
93
99
102
105
117
138
141
143
144
145
146
149
CPUVCC3
O2
O3
O4
O5
O6
O7
O8
O9
O10
Tie CLKMUL pin to GND for AMD DX2-66
and AMD DX5-133; use 10K pullup for
AMD DX4-100
CLKMUL
VCC
R148
0
R13
10K
P24T5
P35
TDO
TDI
TMS
TCK
E
1
3
5
7
9
JTAG Connector
2
4
6
8
10
1
2
(C) Advanced Micro Devices, Inc.
E
HEADER2X5; SHRD
Title
JTAG Connector
9
10
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Date: Friday, December 04, 1998
2
3
Rev
2.1
CPU.SCH
Top View
1
(800) 222-9323
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
4
Sheet
5
2
of
26
1
2
3
4
5
POWER CONNECTOR, CPU PULLUPS, CPU POWER SUPPLY, CPU BYPASS CAPACITORS
VCC
CPUVCC3
HS1
C162
C163
C164
C165
C166
C167
C168
C169
0.015uF 0.015uF 0.015uF 0.015uF 0.1uF
0.1uF
0.1uF
0.1uF
R30
K2VCC
VCC
1
1
+
HEATSINK (TO-220)
THERMALLOY
C39
0.1uF
10uF
A
ML32
VCC
VCC
Q5
TIP127
3
JP2
E
C
2
HEADER 3X1
JP3
1
DP[0..3]
RP2
10
9
8
7
6
5
4
3
2
DP1
DP2
DP3
DP0
B
MIOJ
RDYOJ
BRDYOJ
BOFFJ
U6
U6O/P
VCC
1
2
3
4
C37
O/P
SEN
SD
GND
VIN
FB
TAP
ERR
8
7
6
5
R23
27.4K, 1%
1/8W
0.1uF
R26
15.8K, 1%
1/8W
R25
25.5K, 1%
1/8W
1%
1%
10K-10P
1%
+
JP4
1
3
5
R27
33
VCC
B
HEADER 3X1
COLLECTOR
U6VIN
U6FB
LP2951
1
1
2
3
CPUVCC3
BASE
O10
O9
O8
O7
O6
O5
O4
O3
O2 C
1-2: 5V CPU
2-3: OTHERS
1
2
3
CPUVCC3
B
R28
330
DP[0..3]
K2VCC
TC9
100
A
TC8
100uF
CPUV1
CPUV2
CPUV3
2
4
6
HEADER 3X2
R3
10K
C
R5
10K
R4
10K
R29
15.0K, 1%
1/8W
1%
R61
10K
1-2:
3-4:
5-6:
3.45V
3.3V
2.5V
V(out)= 1.235(1+ R/15.0K)
FLUSHJ
BS16J
BS8J
IGNNEJ
C
+
TC4
47uF
+
TC7
47uF
TC1
47uF
+
TC10
47uF
+
PWG
-12V
+12V
VCC
-5V
J2
1
2
3
4
5
6
-5V
-12V
C5
0.1uF
+12V
CPUVCC3
TC6 +
10uF
MT1
+
+
1
2
3
4
5
6
TC19
10uF
+
TC5
10uF
PWR-CN6
J3
TC20 +
10uF
TC21
10uF
1
MT8
1
C6
C4
C36
C3
C8
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
D
MountingHole
MountingHole
MT2
MT7
MountingHole
MountingHole
1
TC18
10uF
PWR-CN6
1
TC3
10uF
+
+
D
C7
0.1uF
MT3
C11
0.01uF
C34
0.01uF
C9
0.01uF
C12
0.01uF
C10
0.01uF
C13
0.01uF
MT6
MT9
1
C35
0.01uF
1
1
MountingHole
MountingHole
MountingHole
MT4
J3
J2
1
MountingHole
E
6
5
4
3
2
1
6
5
4
3
2
1
MT5
1
MountingHole
MT10
1
(C) Advanced Micro Devices, Inc.
MountingHole
(800) 222-9323
E
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
Overlap To Make An Oval
Title
Power Connector(s)
= Connector Polarizing Key
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
CPU_POWER.SCH
Date: Friday, December 04, 1998
1
2
3
4
Sheet
5
3
of
26
1
2
3
4
5
BUFFERS AND LOGIC ANALYZER HEADERS FOR CPU SIGNALS
A
A
VCC
U26
1
48
25
24
GD31
GD30
GD29
GD28
GD27
GD26
GD25
GD24
GD23
GD22
GD21
GD20
GD19
GD18
GD17
GD16
B
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
21
4
10
15
1OE#
2OE#
3OE#
4OE#
VCC
VCC
VCC
VCC
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
3A1
3A2
3A3
3A4
4A1
4A2
4A3
4A4
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
3Y1
3Y2
3Y3
3Y4
4Y1
4Y2
4Y3
4Y4
GND
GND
GND
GND
GND
GND
GND
GND
P36
7
18
31
42
2
3
5
6
8
9
11
12
13
14
16
17
19
20
22
23
VGD31
VGD30
VGD29
VGD28
VGD27
VGD26
VGD25
VGD24
VGD23
VGD22
VGD21
VGD20
VGD19
VGD18
VGD17
VGD16
28
34
39
45
VGD30
VGD28
VGD26
VGD24
VGD22
VGD20
VGD18
VGD16
1
3
5
7
9
11
13
15
17
19
GD15
GD14
GD13
GD12
GD11
GD10
GD9
GD8
GD7
GD6
GD5
GD4
GD3
GD2
GD1
GD0
C
GD[0..31]
GD[0..31]
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
21
4
10
15
1OE#
2OE#
3OE#
4OE#
P38
VGD14
VGD12
VGD10
VGD8
VGD6
VGD4
VGD2
VGD0
1
3
5
7
9
11
13
15
17
19
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
3A1
3A2
3A3
3A4
4A1
4A2
4A3
4A4
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
3Y1
3Y2
3Y3
3Y4
4Y1
4Y2
4Y3
4Y4
GND
GND
GND
GND
GND
GND
GND
GND
+5V
CLK1
D14
D12
D10
D8
D6
D4
D2
D0
2
4
6
8
10
12
14
16
18
20
VGD15
VGD13
VGD11
VGD9
VGD7
VGD5
VGD3
VGD1
POD 3
CLK2
D15
D13
D11
D9
D7
D5
D3
D1
GND
B
VGD[0..31]
7
18
31
42
2
3
5
6
8
9
11
12
13
14
16
17
19
20
22
23
VGD31
VGD29
VGD27
VGD25
VGD23
VGD21
VGD19
VGD17
HP CONN
3M:2520-6003UB
VCC
VCC
VCC
VCC
VCC
CLK2
D15
D13
D11
D9
D7
D5
D3
D1
GND
2
4
6
8
10
12
14
16
18
20
HP CONN
3M:2520-6003UB
74ABT16244
U28
1
48
25
24
+5V
CLK1
D14
D12
D10
D8
D6
D4
D2
D0
POD 4
VGD15
VGD14
VGD13
VGD12
VGD11
VGD10
VGD9
VGD8
VGD7
VGD6
VGD5
VGD4
VGD3
VGD2
VGD1
VGD0
VCC
U47
1
48
25
24
PCHKJ
SMIJ
WB-WT#
SMIACKJ
FERRJ
28
34
39
45
AHOLD
NMI
IGNNEJ
74ABT16244
STPCLKJ
PCD_CACH
CPURST
HITMJ
INV
PLOCK#
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
21
4
10
15
D
1OE#
2OE#
3OE#
4OE#
SIGNALS NOT NEEDED BY HP DISASSEMBLER
VCC
VCC
VCC
VCC
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
3A1
3A2
3A3
3A4
4A1
4A2
4A3
4A4
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
3Y1
3Y2
3Y3
3Y4
4Y1
4Y2
4Y3
4Y4
GND
GND
GND
GND
GND
GND
GND
GND
7
18
31
42
2
3
5
6
8
9
11
12
13
14
16
17
19
20
22
23
P47
1
3
5
7
9
11
13
15
17
19
VPCHKJ
VSMIJ
VWB-WT#
VSMIACKJ
VFERRJ
VAHOLD
VNMI
VIGNNEJ
VSTPCLKJ
VCACHE#
VSRESET
VHITMJ
VINV
VPLOCK#
+5V
CLK1
D14
D12
D10
D8
D6
D4
D2
D0
POD 7
CLK2
D15
D13
D11
D9
D7
D5
D3
D1
GND
C
2
4
6
8
10
12
14
16
18
20
HP CONN
3M:2520-6003UB
28
34
39
45
D
74ABT16244
HP Conn.
1
Using Logic Analyzer Headers:
2
Clock the analyzer off the clock signal on P41 (POD1)
Qualify the clock using the LA_QUAL signal on P39 (POD2)
This qualification signal is asserted (1) when ADS#, RDY# or BRDY# is
asserted on the Am486 Microprocessor bus.
Thus cycles where valid address or data information is not transferred
can be filtered out when needed
Signals are arranged on the LA Headers to work with the HP Disassembler for the 16500 analyzer
(C) Advanced Micro Devices, Inc.
(800) 222-9323
E
E
19
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
20
Top View
Title
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
CPU_VIS1.SCH
Date: Friday, December 04, 1998
1
2
3
4
Sheet
5
4
of
26
1
2
3
4
5
BUFFERS AND LOGIC ANALYZER HEADERS FOR CPU SIGNALS, AND PAL TO AID LOGIC ANALYZER USE
VCC
U49
1
48
25
24
A
BEJ[0..3]
BEJ[0..3]
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
PWT
A20MJ
BREQ
U80
BEJ0
BEJ1
BEJ2
BEJ3
ADSJ
BRDYOJ
RDYOJ
3
4
5
6
7
9
10
11
12
13
16
2
I1
I2
I3
I4
I5
I6
I7
I8
I9
I10
I11
ZRSTDRV
I/O9
I/O8
I/O7
I/O6
I/O5
I/O4
I/O3
I/O2
I/O1
I/O0
27
26
25
24
23
21
20
19
18
17
VBRDYOJ
VADSJ
VRDYOJ
LA_QUAL
VGA0
VGA1
VBEJ0
VBEJ1
VBEJ2
VBEJ3
VCC
INTR
FLUSHJ
R94
330
CPUCLK3
PLACE THEVENIN
TERMINATOR NEAR
’ABT16244
BUFFER
CLK/I0
PALCE22V10_PLCC (5ns)
5nsec
LACNTL.JED
B
21
4
10
15
R95
470
1OE#
2OE#
3OE#
4OE#
VCC
VCC
VCC
VCC
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
3A1
3A2
3A3
3A4
4A1
4A2
4A3
4A4
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
3Y1
3Y2
3Y3
3Y4
4Y1
4Y2
4Y3
4Y4
GND
GND
GND
GND
GND
GND
GND
GND
P39
7
18
31
42
LA_QUAL
VRDYOJ
VPWT
VA20MJ
VBREQ
VZRSTDRV
2
3
5
6
8
9
11
12
13
14
16
17
19
20
22
23
1
3
5
7
9
11
13
15
17
19
POD 2
+5V
CLK1
D14
D12
D10
D8
D6
D4
D2
D0
CLK2
D15
D13
D11
D9
D7
D5
D3
D1
GND
2
4
6
8
10
12
14
16
18
20
A
VBRDYOJ
VADSJ
VHOLD
VFLUSHJ
VINTR
HP CONN
3M:2520-6003UB
VCPUCLK1
VCPUCLK
28
34
39
45
VCPUCLK1
VCC
74ABT16244
R156
330
B
PLACE THEVENIN TERMINATOR
NEAR HP LOGIC ANALYZER
CONNECTOR
R157
470
VCC
U31
1
48
25
24
VCC
U30
1
48
25
24
GA31
GA30
GA29
GA28
GA27
GA26
GA25
GA24
GA23
GA22
GA21
GA20
GA19
GA18
GA17
GA16
C
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
21
4
10
15
1OE#
2OE#
3OE#
4OE#
VCC
VCC
VCC
VCC
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
3A1
3A2
3A3
3A4
4A1
4A2
4A3
4A4
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
3Y1
3Y2
3Y3
3Y4
4Y1
4Y2
4Y3
4Y4
GND
GND
GND
GND
GND
GND
GND
GND
7
18
31
42
2
3
5
6
8
9
11
12
13
14
16
17
19
20
22
23
LOCKJ
KENOJ
BS16J
28
34
39
45
VCC
U32
1
48
25
24
GA15
GA14
GA13
GA12
GA11
GA10
GA9
GA8
GA7
GA6
GA5
GA4
GA3
GA2
E
GA[2..31]
GA[2..31]
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
21
4
10
15
1OE#
2OE#
3OE#
4OE#
VCC
VCC
VCC
VCC
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
3A1
3A2
3A3
3A4
4A1
4A2
4A3
4A4
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
3Y1
3Y2
3Y3
3Y4
4Y1
4Y2
4Y3
4Y4
GND
GND
GND
GND
GND
GND
GND
GND
BLAST#
HDLA
VGA31
VGA30
VGA29
VGA28
VGA27
VGA26
VGA25
VGA24
VGA23
VGA22
VGA21
VGA20
VGA19
VGA18
VGA17
VGA16
74ABT16244
D
MIOJ
WRJ
BS8J
PCD
BOFFJ
DCJ
EADSJ
P40
VGA30
VGA28
VGA26
VGA24
VGA22
VGA20
VGA18
VGA16
1
3
5
7
9
11
13
15
17
19
7
18
31
42
2
3
5
6
8
9
11
12
13
14
16
17
19
20
22
23
+5V
CLK1
D14
D12
D10
D8
D6
D4
D2
D0
21
4
10
15
POD 6
CLK2
D15
D13
D11
D9
D7
D5
D3
D1
GND
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
2
4
6
8
10
12
14
16
18
20
1OE#
2OE#
3OE#
4OE#
VCC
VCC
VCC
VCC
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
3A1
3A2
3A3
3A4
4A1
4A2
4A3
4A4
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
3Y1
3Y2
3Y3
3Y4
4Y1
4Y2
4Y3
4Y4
GND
GND
GND
GND
GND
GND
GND
GND
7
18
31
42
P41
VCPUCLK
2
3
5
6
8
9
11
12
13
14
16
17
19
20
22
23
VMIOJ
VWRJ
VBEJ2
VBEJ0
VLOCKJ
VKENOJ
VBS16J
VBLAST#
1
3
5
7
9
11
13
15
17
19
+5V
CLK1
D14
D12
D10
D8
D6
D4
D2
D0
POD 1
2
4
6
8
10
12
14
16
18
20
CLK2
D15
D13
D11
D9
D7
D5
D3
D1
GND
C
HP CONN
3M:2520-6003UB
VHLDA
VBS8J
VPCD
VBOFFJ
VBEJ1
VBEJ3
VDCJ
VEADSJ
28
34
39
45
74ABT16244
VGA31
VGA29
VGA27
VGA25
VGA23
VGA21
VGA19
VGA17
HP Conn.
1
2
D
HP CONN
3M:2520-6003UB
VGA15
VGA14
VGA13
VGA12
VGA11
VGA10
VGA9
VGA8
VGA7
VGA6
VGA5
VGA4
VGA3
VGA2
P42
VGA14
VGA12
VGA10
VGA8
VGA6
VGA4
VGA2
VGA0
1
3
5
7
9
11
13
15
17
19
+5V
CLK1
D14
D12
D10
D8
D6
D4
D2
D0
POD 5
CLK2
D15
D13
D11
D9
D7
D5
D3
D1
GND
2
4
6
8
10
12
14
16
18
20
VGA15
VGA13
VGA11
VGA9
VGA7
VGA5
VGA3
VGA1
19
HP CONN
3M:2520-6003UB
20
Top View
VGA[2..31]
28
34
39
45
(C) Advanced Micro Devices, Inc.
VGA[2..31]
(800) 222-9323
E
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
74ABT16244
VADSJ
VRDYOJ
VBRDYOJ
VWRJ
VADSJ
VRDYOJ
VBRDYOJ
VWRJ
Title
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
CPU_VIS2.SCH
Date: Friday, December 04, 1998
1
2
3
4
Sheet
5
5
of
26
1
2
3
4
5
FINALi M1489 INTERFACE
PARITY
HDCSJ3
HDCSJ2
HDCSJ1
HDCSJ0
HDIO16J
HDIORDY
HDA2
HDA1
HDA0
HDIORJ
HDIOWJ
A
HDD[0..15]
R162
*0
R166
*0
R164
*0
R168
*0
PD0
PD1
PD2
PD3
R163
R167
0
R165
0
R169
MDP0
MDP1
MDP2
MDP3
0
0
FOR IDE MASTER: DO
NOT POPULATE
A
VCC
HDD0
HDD1
HDD2
HDD3
HDD4
HDD5
HDD6
HDD7
HDD8
HDD9
HDD10
HDD11
HDD12
HDD13
HDD14
HDD15
HDD[0..15]
DEVSELJ
PAR
STOPJ
IRDYJ
TRDYJ
C_BEJ0
C_BEJ1
C_BEJ2
C_BEJ3
FRAMEJ
HDRQ1
HDACK1
HDRQ0
HDACK0
HDRQ1
HDACK1
HDRQ0
HDACK0
GA[2..31]
+
C38
0.1uF
HDD0
HDD1
HDD2
HDD3
HDD4
HDD5
HDD6
HDD7
HDD8
HDD9
HDD10
HDD11
HDD12
HDD13
HDD14
HDD15
HDIOWJ
HDIORJ
HDA0
HDA1
HDA2
HDIORDY
HDIO16J
HDCSJ0
HDCSJ1
HDCSJ2
HDCSJ3
DEVSELJ
PAR
STOPJ
IRDYJ
TRDYJ
C/BEJ0
C/BEJ1
C/BEJ2
C/BEJ3
FRAMEJ
VCC
VCC
VCC
VCC
VCC
VCC
GND
GND
GND
GND
GND
GND
GND
GND
GND
87
89
92
94
96
98
100
101
99
97
95
93
91
88
86
85
84
83
77
80
79
82
81
74
73
76
75
139
114
113
140
112
123
137
141
147
111
22
52
78
130
144
182
34
53
72
90
104
128
156
168
208
TC11
10uF
GA[2..31]
157
158
173
172
171
170
167
165
163
162
164
169
166
161
160
159
174
175
176
177
178
179
180
183
184
181
47
46
48
45
186
187
188
189
39
40
185
190
191
42
41
44
43
131
127
129
192
155
152
154
153
GA2
GA3
GA4
GA5
GA6
GA7
GA8
GA9
GA10
GA11
GA12
GA13
GA14
GA15
GA16
GA17
GA18
GA19
GA20
GA21
GA22
GA23
GA24
GA25
GA26
GA31
B
BEJ0
BEJ1
BEJ2
BEJ3
ADSJ
MIOJ
DCJ
WRJ
RDYOJ
BRDYOJ
LOCKJ
PCD_CACH
HITMJ
AHOLD
BOFFJ
KENOJ
EADSJ
RSTDRV
PCICLK
CPUCLK1
SMIACKJ
IBCSTJ
CMPSTJ
CMPGNTJ
CLEAROKJ
C
D
GA2
GA3
GA4
GA5
GA6
GA7
GA8
GA9
GA10
GA11
GA12
GA13
GA14
GA15
GA16
GA17
GA18
GA19
GA20
GA21
GA22
GA23
GA24
GA25
GA26
GA31
BEJ0
BEJ1
BEJ2
BEJ3
ADSJ
MIOJ
DCJ
WRJ
RDYOJ
BRDYJ
LOCKJ
PCD
HITMJ
AHOLD
BOFFJ
KENOJ
EADSJ
RSTDRV
PCICLK
CPUCLK1
SMIACKJ
IBCSTJ
CMPSTJ
CMPGNTJ
CLEAROKJ
C171
0.1uF
C172
0.1uF
U5
PAD[0..31]
PAD0
PAD1
PAD2
PAD3
PAD4
PAD5
PAD6
PAD7
PAD8
PAD9
PAD10
PAD11
PAD12
PAD13
PAD14
PAD15
PAD16
PAD17
PAD18
PAD19
PAD20
PAD21
PAD22
PAD23
PAD24
PAD25
PAD26
PAD27
PAD28
PAD29
PAD30
PAD31
COEJ0
COEJ1
CWEJ0
CWEJ1
CCSJ0
CCSJ1
CCSJ2
CCSJ3
TAG0
TAG1
TAG2
TAG3
TAG4
TAG5
TAG6
TAG7
PERRJ
TAGWEJ
CA2
CA3
122
132
120
133
119
125
121
124
126
118
134
117
135
116
136
115
110
142
109
143
108
145
107
146
106
148
105
149
103
150
102
151
201
194
200
196
193
195
198
202
203
204
205
3
2
1
207
206
138
4
197
199
PAD[0..31]
PAD0
PAD1
PAD2
PAD3
PAD4
PAD5
PAD6
PAD7
PAD8
PAD9
PAD10
PAD11
PAD12
PAD13
PAD14
PAD15
PAD16
PAD17
PAD18
PAD19
PAD20
PAD21
PAD22
PAD23
PAD24
PAD25
PAD26
PAD27
PAD28
PAD29
PAD30
PAD31
B
C
COEJ0
CWEJ0
PD0
PD1
PD2
PD3
TAG0
TAG1
TAG2
TAG3
TAG4
TAG5
TAG6
TAG7
TAG[0..7]
TAG[0..7]
PERRJ
TAGWEJ
A3II
A3I
D
GD0
GD1
GD2
GD3
GD4
GD5
GD6
GD7
GD8
GD9
GD10
GD11
GD12
GD13
GD14
GD15
GD16
GD17
GD18
GD19
GD20
GD21
GD22
GD23
GD24
GD25
GD26
GD27
GD28
GD29
GD30
GD31
MA0
MA1
MA2
MA3
MA4
MA5
MA6
MA7
MA8
MA9
MA10
MA11
5
6
7
8
9
10
12
11
13
14
15
16
17
18
20
19
21
23
24
25
26
27
29
28
30
31
32
33
35
36
37
38
58
57
56
55
54
51
50
49
62
61
60
59
66
65
64
63
71
70
69
68
67
GD0
GD1
GD2
GD3
GD4
GD5
GD6
GD7
GD8
GD9
GD10
GD11
GD12
GD13
GD14
GD15
GD16
GD17
GD18
GD19
GD20
GD21
GD22
GD23
GD24
GD25
GD26
GD27
GD28
GD29
GD30
GD31
MA0
MA1
MA2
MA3
MA4
MA5
MA6
MA7
MA8
MA9
MA10
MA11
CASJ0
CASJ1
CASJ2
CASJ3
RASJ0
RASJ1
RASJ2
RASJ3
WEJ
R85
1K
GD[0..31]
M1489
WEJ
RASJ3
RASJ2
RASJ1
RASJ0
CASJ3
CASJ2
CASJ1
CASJ0
GD[0..31]
(C) Advanced Micro Devices, Inc.
E
MA[0..11]
(800) 222-9323
E
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
MA[0..11]
Title
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
M1489.SCH
Date: Friday, December 04, 1998
1
2
3
4
Sheet
5
6
of
26
1
2
3
4
5
L2 CACHE TAG AND DATA SRAMS AND BYTE CONTROL; DRAM SERIES TERMINATION AND WE* FANOUT
GD[0..31]
GA[4..18]
A3II
A
A3I
GD[0..31]
GA[4..18]
A3II
A3I
A
VCC
VCC
U10
VCC
GA4
GA5
GA6
GA7
GA8
GA9
GA10
GA11
GA12
GA13
GA14
GA15
GA16
GA17
GA18
VCC
12
11
10
9
8
7
6
5
27
26
23
25
4
28
3
31
2
1
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
NC
VCC
13
14
15
17
18
19
20
21
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
GA4
GA5
GA6
GA7
GA8
GA9
GA10
GA11
GA12
GA13
GA14
GA15
GA16
GD0
GD1
GD2
GD3
GD4
GD5
GD6
GD7
30
22
29
24
CE2
CE1#
WE#
OE#
GA17
GA18
VCC
B
GND
12
11
10
9
8
7
6
5
27
26
23
25
4
28
3
31
2
1
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
NC
16
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
CE2
CE1#
WE#
OE#
13
14
15
17
18
19
20
21
VCC
U8
U7
32
VCC
12
11
10
9
8
7
6
5
27
26
23
25
4
28
3
31
2
1
GA4
GA5
GA6
GA7
GA8
GA9
GA10
GA11
GA12
GA13
GA14
GA15
GA16
GD8
GD9
GD10
GD11
GD12
GD13
GD14
GD15
30
22
29
24
GA17
GA18
VCC
GND
128Kx8-15
COEJ0
CWEJ0
VCC
U9
32
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
NC
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
CE2
CE1#
WE#
OE#
13
14
15
17
18
19
20
21
VCC
12
11
10
9
8
7
6
5
27
26
23
25
4
28
3
31
2
1
GA4
GA5
GA6
GA7
GA8
GA9
GA10
GA11
GA12
GA13
GA14
GA15
GA16
GD16
GD17
GD18
GD19
GD20
GD21
GD22
GD23
30
22
29
24
GA17
GA18
VCC
16
GND
128Kx8-15
32
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
NC
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
CE2
CE1#
WE#
OE#
16
GND
128Kx8-15
32
13
14
15
17
18
19
20
21
GD24
GD25
GD26
GD27
GD28
GD29
GD30
GD31
30
22
29
24
B
16
128Kx8-15
COEJ0
CWEJ0
CSJ0
CSJ1
CSJ2
CSJ3
MA[0..11]
C
GA[2..19]
AMA[0..11]
MA[0..11]
AMA[0..11]
TAG[0..7]
TAG[0..7]
RN4
GA[2..19]
VCC
U11
GA4
GA5
GA6
GA7
GA8
GA9
GA10
GA11
GA12
GA13
GA14
GA15
GA16
GA17
GA18
10
9
8
7
6
5
4
3
25
24
21
23
2
26
1
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
27
20
22
TAGWEJ
VCC
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
RN2
28
11
12
13
15
16
17
18
19
2
4
6
8
RASJ0
RASJ1
RASJ2
RASJ3
TAG0
TAG1
TAG2
TAG3
TAG4
TAG5
TAG6
TAG7
1
3
5
7
MRASJ0
MRASJ1
MRASJ2
MRASJ3
1
3
5
7
MCASJ0
MCASJ1
MCASJ2
MCASJ3
MA0
MA2
MA4
MA6
2
4
6
8
MA1
MA3
MA5
MA7
2
4
6
8
MA8
MA9
MA10
MA11
2
4
6
8
1
3
5
7
AMA0
AMA2
AMA4
AMA6
1
3
5
7
AMA1
AMA3
AMA5
AMA7
C
33-8B
RN3
33-8B
RN9
2
4
6
8
CASJ0
CASJ1
CASJ2
CASJ3
33-8B
RN1
33-8B
1
3
5
7
AMA8
AMA9
AMA10
AMA11
33-8B
WE#
CE#
OE#
GND
14
32Kx8-15
D
D
U1
VCC
U1PD
U24A
WRJ
1
BEJ3
2
3
R19
10K
CSJ3
74F08
U24B
WEJ
4
6
BEJ2
5
2
3
4
5
6
7
8
9
19
1
CSJ2
R96
470
74F08
U24C
VCC
A1
A2
A3
A4
A5
A6
A7
A8
B1
B2
B3
B4
B5
B6
B7
B8
18
17
16
15
14
13
12
11
ZMWEJ2
ZMWEJ1
ZMWEJ0
R124
R8
R7
33
33
33
MWEJ2
MWEJ1
MWEJ0
G
DIR
74F245
9
BEJ1
8
CSJ1
11
CSJ0
10
74F08
U24D
12
E
(C) Advanced Micro Devices, Inc.
13
BEJ0
(800) 222-9323
E
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
74F08
Title
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
L2_CACHE.SCH
Date: Friday, December 04, 1998
1
2
3
4
Sheet
5
7
of
26
1
2
3
4
5
DRAM 72-PIN SIMM SOCKETS
VCC
66
48
46
11
70
69
68
67
MRASJ1
B
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
IO34
IO33
IO32
IO31
IO30
IO29
IO28
IO27
IO25
IO24
IO23
IO22
IO21
IO20
IO19
IO18
IO16
IO15
IO14
IO13
IO12
IO11
IO10
IO9
IO7
IO6
IO5
IO4
IO3
IO2
IO1
IO0
NC4
NC3
NC2
NC1
PRD3
PRD2
PRD1
PRD0
MRASJ0
MCASJ3
MCASJ2
MCASJ1
MCASJ0
42
41
43
40
47
MWEJ0
CAS3
CAS2
CAS1
CAS0
WE
SIMM72
GND
GND
GND
MCASJ[0..3]
RAS3
RAS2
RAS1
RAS0
IO35
IO26
IO17
IO8
38
35
37
36
GD31
GD30
GD29
GD28
GD27
GD26
GD25
GD24
GD23
GD22
GD21
GD20
GD19
GD18
GD17
GD16
GD15
GD14
GD13
GD12
GD11
GD10
GD9
GD8
GD7
GD6
GD5
GD4
GD3
GD2
GD1
GD0
AMA11
AMA10
AMA9
AMA8
AMA7
AMA6
AMA5
AMA4
AMA3
AMA2
AMA1
AMA0
71
29
19
32
31
28
18
17
16
15
14
13
12
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
66
48
46
11
70
69
68
67
MRASJ0
PRD3
PRD2
PRD1
PRD0
MRASJ2
MCASJ[0..3]
33
34
45
44
MCASJ[0..3]
MCASJ3
MCASJ2
MCASJ1
MCASJ0
MDP3
MDP2
MDP1
MDP0
MWEJ2
MDP[0..3]
GD[0..31]
IO34
IO33
IO32
IO31
IO30
IO29
IO28
IO27
IO25
IO24
IO23
IO22
IO21
IO20
IO19
IO18
IO16
IO15
IO14
IO13
IO12
IO11
IO10
IO9
IO7
IO6
IO5
IO4
IO3
IO2
IO1
IO0
NC4
NC3
NC2
NC1
RAS3
RAS2
RAS1
RAS0
42
41
43
40
CAS3
CAS2
CAS1
CAS0
47
WE
MDP[0..3]
SIMM72
1
39
72
33
34
45
44
64
62
60
58
56
54
52
50
27
25
23
21
9
7
5
3
65
63
61
57
55
53
51
49
26
24
22
20
8
6
4
2
GND
GND
GND
71
29
19
32
31
28
18
17
16
15
14
13
12
AMA[0..11]
GD[0..31]
IO35
IO26
IO17
IO8
64
62
60
58
56
54
52
50
27
25
23
21
9
7
5
3
65
63
61
57
55
53
51
49
26
24
22
20
8
6
4
2
38
35
37
36
GD[0..31]
GD31
GD30
GD29
GD28
GD27
GD26
GD25
GD24
GD23
GD22
GD21
GD20
GD19
GD18
GD17
GD16
GD15
GD14
GD13
GD12
GD11
GD10
GD9
GD8
GD7
GD6
GD5
GD4
GD3
GD2
GD1
GD0
A
B
MDP3
MDP2
MDP1
MDP0
MDP[0..3]
MDP[0..3]
1
39
72
AMA11
AMA10
AMA9
AMA8
AMA7
AMA6
AMA5
AMA4
AMA3
AMA2
AMA1
AMA0
GD[0..31]
VCC
VCC
VCC
A
MCASJ[0..3]
AMA[0..11]
AMA[0..11]
VCC
VCC
VCC
10
30
59
SIMM2
SIMM0
AMA[0..11]
10
30
59
VCC
C
C
AMA[0..11]
AMA11
AMA10
AMA9
AMA8
AMA7
AMA6
AMA5
AMA4
AMA3
AMA2
AMA1
AMA0
71
29
19
32
31
28
18
17
16
15
14
13
12
D
66
48
46
11
70
69
68
67
MRASJ2
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
IO34
IO33
IO32
IO31
IO30
IO29
IO28
IO27
IO25
IO24
IO23
IO22
IO21
IO20
IO19
IO18
IO16
IO15
IO14
IO13
IO12
IO11
IO10
IO9
IO7
IO6
IO5
IO4
IO3
IO2
IO1
IO0
NC4
NC3
NC2
NC1
PRD3
PRD2
PRD1
PRD0
MRASJ1
MCASJ3
MCASJ2
MCASJ1
MCASJ0
MWEJ1
E
42
41
43
40
47
RAS3
RAS2
RAS1
RAS0
CAS3
CAS2
CAS1
CAS0
WE
SIMM72
GND
GND
GND
33
34
45
44
MCASJ[0..3]
IO35
IO26
IO17
IO8
64
62
60
58
56
54
52
50
27
25
23
21
9
7
5
3
65
63
61
57
55
53
51
49
26
24
22
20
8
6
4
2
38
35
37
36
SIMM SOCKET POPULATION CHART
GD[0..31]
GD31
GD30
GD29
GD28
GD27
GD26
GD25
GD24
GD23
GD22
GD21
GD20
GD19
GD18
GD17
GD16
GD15
GD14
GD13
GD12
GD11
GD10
GD9
GD8
GD7
GD6
GD5
GD4
GD3
GD2
GD1
GD0
SIMM0
SIMM1
SINGLE BANK
SINGLE BANK
DOUBLE BANK
SINGLE BANK
SIMM2
SINGLE BANK
D
SIMMS CAN BE SINGLE BANK OR DOUBLE BANK, USING
1Mbit, 4Mbit, or 16Mbit DRAM CHIPS. POPULATE
SIMM SOCKETS AS SHOWN IN THIS CHART.
MDP3
MDP2
MDP1
MDP0
(C) Advanced Micro Devices, Inc.
MDP[0..3]
(800) 222-9323
E
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
MDP[0..3]
1
39
72
MCASJ[0..3]
GD[0..31]
VCC
VCC
VCC
SIMM1
AMA[0..11]
10
30
59
VCC
Title
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
SIMM_SKTS.SCH
Date: Friday, December 04, 1998
1
2
3
4
Sheet
5
8
of
26
1
2
3
4
5
EIP FLASH MEMORY CONTROLLER
VA(2:21)
A
A
Am486
MICROPROCESSOR
A(2:22)
A(22)=0
U60
Bank1 Cntl.
VA(22)
VCC
R158
330
RSTDRV
VGA22
AMA8
VWRJ
MRASJ3
MCASJ3
MCASJ2
MCASJ1
MCASJ0
VCPUCLK1
3
4
5
6
7
9
10
11
12
13
16
2
R159
470
B
I1
I2
I3
I4
I5
I6
I7
I8
I9
I10
I11
’ABT244
I/O9
I/O8
I/O7
I/O6
I/O5
I/O4
I/O3
I/O2
I/O1
I/O0
27
26
25
24
23
21
20
19
18
17
REFCIP
WRCIP
Bank2 Cntl.
EIPCE1#
EIPCE2#
EIPOE1#
EIPOE2#
4 ea. 1Mx8
Flash ROM Chips
A(22)=1
PAL
4 ea. 1Mx8
Flash ROM Chips
CPU Address Bit A(22) Used As Flash Bank Select
EIPWE1#
EIPWE2#
CLK/I0
PALCE22V10_PLCC (5ns)
EIPCNTL.JED REV. 0.9
B
PLACE THEVENIN TERMINATOR
NEAR 22V10 PAL
Makes 2 banks of 1Mx32 Flash ROM appear as 1 bank of 2Mx32 DRAM (70ns, FPM) to M1489 Memory
Controller. Program M1489 for 2Mx8 (11/10) DRAM chips. MA8 (CPU A22) used as Flash ROM
Bank Select when RAS3# asserted by M1489 Memory Controller.
Limitations and Operation of the EIP Interface:
Access as 32-bits wide always
Supports burst Read Cycles or single-beat Read Cycles
Supports single-beat Write Cycles only; no back-to-back Write Cycles
Compatible with CAS-before-RAS Refresh Cycles only
C
C
Set M1489 Memory Controller to "Fast" for proper operation, even if installed DRAM is 60ns and can run at the "Fastest" setting
Flash chip A0 pin tied to Am486 Microprocessor A2 pin, so multiply desired Flash chip address by 4h to find Am486 Microprocessor address
needed to access the desired memory cell (ex: Flash Chip AAAh accessed by Am486 Microprocessor at 2AA8h)
EIP Flash Array start address moves, depending on how much DRAM is installed (ex: 48MByte DRAM puts EIP start address
at 48MB or 3000000h for first bank of Flash ROMs and 3400000h start address for second bank of Flash ROMs
Uses 29F800T, 55ns devices in "Byte" mode
Accessable from Am486 Microprocessor only; not accessable from PCI Bus Masters
Uses fourth DRAM bank of M1489 Memory Controller
D
D
(C) Advanced Micro Devices, Inc.
(800) 222-9323
E
E
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
Title
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
EIP_MEM1.SCH
Date: Friday, December 04, 1998
1
2
3
4
Sheet
5
9
of
26
1
2
3
4
5
EIP FLASH MEMORY ARRAY
GD[0..31]
VGA[2..31]
A
A
U61
VGA3
VGA4
VGA5
VGA6
VGA7
VGA8
VGA9
VGA10
VGA11
VGA12
VGA13
VGA14
VGA15
VGA16
VGA17
VGA18
VGA19
VGA20
VGA21
B
25
24
23
22
21
20
19
18
8
7
6
5
4
3
2
1
48
17
16
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
U62
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15/A-1
RY/BY#
29
31
33
35
38
40
42
44
GD0
GD1
GD2
GD3
GD4
GD5
GD6
GD7
30
32
34
36
39
41
43
45
VGA3
VGA4
VGA5
VGA6
VGA7
VGA8
VGA9
VGA10
VGA11
VGA12
VGA13
VGA14
VGA15
VGA16
VGA17
VGA18
VGA19
VGA20
VGA21
VGA2
15
25
24
23
22
21
20
19
18
8
7
6
5
4
3
2
1
48
17
16
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
U63
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15/A-1
RY/BY#
29
31
33
35
38
40
42
44
30
32
34
36
39
41
43
45
GD8
GD9
GD10
GD11
GD12
GD13
GD14
GD15
VGA2
15
VCC
RSTDRV#
RSTDRV#
47
12
26
28
11
EIPCE1#
EIPOE1#
EIPWE1#
BYTE#
RESET#
VCC
CE#
OE#
WE#
GND
GND
25
24
23
22
21
20
19
18
8
7
6
5
4
3
2
1
48
17
16
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15/A-1
RY/BY#
29
31
33
35
38
40
42
44
GD16
GD17
GD18
GD19
GD20
GD21
GD22
GD23
30
32
34
36
39
41
43
45
C122
C123
0.1uF
EIPCE1#
0.1uF EIPOE1#
EIPWE1#
47
12
26
28
11
BYTE#
RESET#
VGA2
VCC
CE#
OE#
WE#
GND
GND
C124
C125
0.1uF
EIPCE1#
0.1uF EIPOE1#
EIPWE1#
46
27
25
24
23
22
21
20
19
18
8
7
6
5
4
3
2
1
48
17
16
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15/A-1
RY/BY#
GD24
GD25
GD26
GD27
GD28
GD29
GD30
GD31
29
31
33
35
38
40
42
44
30
32
34
36
39
41
43
45
VGA2
15
B
VCC
RSTDRV#
37
VGA3
VGA4
VGA5
VGA6
VGA7
VGA8
VGA9
VGA10
VGA11
VGA12
VGA13
VGA14
VGA15
VGA16
VGA17
VGA18
VGA19
VGA20
VGA21
15
VCC
RSTDRV#
37
46
27
VGA3
VGA4
VGA5
VGA6
VGA7
VGA8
VGA9
VGA10
VGA11
VGA12
VGA13
VGA14
VGA15
VGA16
VGA17
VGA18
VGA19
VGA20
VGA21
U64
47
12
26
28
11
BYTE#
RESET#
VCC
CE#
OE#
WE#
GND
GND
VCC
RSTDRV#
37
C126
C127
0.1uF
EIPCE1#
0.1uF EIPOE1#
EIPWE1#
46
27
47
12
26
28
11
BYTE#
RESET#
VCC
CE#
OE#
WE#
GND
GND
29F800-55 TSOP48
29F800-55 TSOP48
29F800-55 TSOP48
29F800-55 TSOP48
U65
U66
U67
U68
37
C128
C129
0.1uF
0.1uF
46
27
GD[0..31]
C
C
VGA[2..31]
VGA3
VGA4
VGA5
VGA6
VGA7
VGA8
VGA9
VGA10
VGA11
VGA12
VGA13
VGA14
VGA15
VGA16
VGA17
VGA18
VGA19
VGA20
VGA21
D
25
24
23
22
21
20
19
18
8
7
6
5
4
3
2
1
48
17
16
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15/A-1
RY/BY#
29
31
33
35
38
40
42
44
30
32
34
36
39
41
43
45
GD0
GD1
GD2
GD3
GD4
GD5
GD6
GD7
VGA3
VGA4
VGA5
VGA6
VGA7
VGA8
VGA9
VGA10
VGA11
VGA12
VGA13
VGA14
VGA15
VGA16
VGA17
VGA18
VGA19
VGA20
VGA21
VGA2
15
25
24
23
22
21
20
19
18
8
7
6
5
4
3
2
1
48
17
16
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15/A-1
RY/BY#
29
31
33
35
38
40
42
44
30
32
34
36
39
41
43
45
GD8
GD9
GD10
GD11
GD12
GD13
GD14
GD15
VGA2
15
VCC
RSTDRV#
47
12
26
28
11
EIPCE2#
EIPOE2#
EIPWE2#
BYTE#
RESET#
CE#
OE#
WE#
VCC
GND
GND
25
24
23
22
21
20
19
18
8
7
6
5
4
3
2
1
48
17
16
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15/A-1
RY/BY#
29
31
33
35
38
40
42
44
GD16
GD17
GD18
GD19
GD20
GD21
GD22
GD23
30
32
34
36
39
41
43
45
RSTDRV#
C130
C131
0.1uF
EIPCE2#
0.1uF EIPOE2#
EIPWE2#
29F800-55 TSOP48
47
12
26
28
11
BYTE#
RESET#
CE#
OE#
WE#
VCC
VGA2
GND
GND
C132
C133
0.1uF
EIPCE2#
0.1uF EIPOE2#
EIPWE2#
46
27
29F800-55 TSOP48
25
24
23
22
21
20
19
18
8
7
6
5
4
3
2
1
48
17
16
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15/A-1
GD24
GD25
GD26
GD27
GD28
GD29
GD30
GD31
29
31
33
35
38
40
42
44
30
32
34
36
39
41
43
45
VGA2
D
RY/BY#
15
VCC
RSTDRV#
37
VGA3
VGA4
VGA5
VGA6
VGA7
VGA8
VGA9
VGA10
VGA11
VGA12
VGA13
VGA14
VGA15
VGA16
VGA17
VGA18
VGA19
VGA20
VGA21
15
VCC
37
46
27
VGA3
VGA4
VGA5
VGA6
VGA7
VGA8
VGA9
VGA10
VGA11
VGA12
VGA13
VGA14
VGA15
VGA16
VGA17
VGA18
VGA19
VGA20
VGA21
47
12
26
28
11
BYTE#
RESET#
CE#
OE#
WE#
VCC
GND
GND
VCC
RSTDRV#
37
46
27
C134
C135
0.1uF
EIPCE2#
0.1uF EIPOE2#
EIPWE2#
29F800-55 TSOP48
47
12
26
28
11
BYTE#
RESET#
VCC
CE#
OE#
WE#
GND
GND
37
C136
C137
0.1uF
0.1uF
46
27
29F800-55 TSOP48
(C) Advanced Micro Devices, Inc.
(800) 222-9323
E
E
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
Title
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
EIP_MEM2.SCH
Date: Friday, December 04, 1998
1
2
3
4
Sheet
5
10
of
26
1
2
3
4
5
PCI PULLUPS AND SLOT CONNECTORS; PCI IDSEL GENERATION
VCC
VCC
VCC
RP10
A
2
3
4
5
6
7
8
9
10
FRAMEJ
TRDYJ
DEVSELJ
STOPJ
PLOCKJ
PAR
SERRJ
C_BEJ0
C42
15pF
O2 C
O3
O4
O5
O6
O7
O8
O9
O10
RP11
1
INT0J
INT2J
INT1J
INT3J
PREQJ1
PGNTJ2
PREQJ2
2
3
4
5
6
7
8
9
10
4.7K-10P
RP9
O2 C
O3
O4
O5
O6
O7
O8
O9
O10
1
PGNTJ0
PGNTJ1
PREQJ0
C_BEJ1
C_BEJ2
IRDYJ
C_BEJ3
4.7K-10P
2
3
4
5
6
7
8
9
10
1
O2 C
O3
O4
O5
O6
O7
O8
O9
O10
RN8
7
5
3
1
PCIID1
PCIID3
PCIID2
A
8
6
4
2
PAD19
PAD21
PAD20
PCIBus INT
33-8B
4.7K-10P
VCC
Slot1
Slot2
INT0#
INTA#
INTD#
INT1#
INTB#
INTA#
INT2#
INTC#
INTB#
INT3#
INTC#
INTC#
Ethernet
INTA#
VCC
B
B
-12V
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
INT1J
INT3J
PCICLK1
PREQJ0
C
PAD31
PAD29
PAD27
PAD25
C_BEJ3
PAD23
PAD21
PAD19
PAD17
C_BEJ2
IRDYJ
DEVSELJ
PLOCKJ
PERRJ
SERRJ
D
SLT1
C_BEJ1
PAD14
PAD12
PAD10
110
111
112
113
114
115
116
117
118
119
120
PAD8
PAD7
PAD5
PAD3
PAD1
+12V
-12V
TCK
GND
TDO
+5V
+5V
INTB#
INTD#
PRSNT1#
RSRVD
PRSNT2#
GND
GND
RSRVD
GND
CLK
GND
REQ#
+5V(I/O)
AD31
AD29
GND
AD27
AD25
+3.3V
C/BE3#
AD23
GND
AD21
AD19
+3.3V
AD17
C/BE2#
GND
IRDY#
+3.3V
DEVSEL#
GND
LOCK#
PERR#
+3.3V
SERR#
+3.3V
C/BE1#
AD14
GND
AD12
AD10
GND
TRST#
+12V
TMS
TDI
+5V
INTA#
INTC#
+5V
RSRVD
+5V(I/O)
RSRVD
GND
GND
RSRVD
RST#
+5V(I/O)
GNT#
GND
RSVRD
AD30
+3.3V
AD28
AD26
GND
AD24
IDSEL
+3.3V
AD22
AD20
GND
AD18
AD16
+3.3V
FRAME#
GND
TRDY#
GND
STOP#
+3.3V
SDONE
SBO#
GND
PAR
AD15
+3.3V
AD13
AD11
GND
AD9
AD8
AD7
+3.3V
AD5
AD3
GND
AD1
+5V(I/O)
ACK64#
+5V
+5V
C/BE0#
+3.3V
AD6
AD4
GND
AD2
AD0
+5V(I/O)
REQ64#
+5V
+5V
-12V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
INT0J
INT2J
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
INT2J
INT0J
PCIRSTJ
PCICLK2
PGNTJ0
PREQJ1
PAD30
PAD28
PAD26
PAD24
PCIID1
PAD22
PAD20
PAD18
PAD16
FRAMEJ
PAD31
PAD29
PAD27
PAD25
C_BEJ3
PAD23
PAD21
PAD19
PAD17
C_BEJ2
IRDYJ
TRDYJ
DEVSELJ
STOPJ
PLOCKJ
PERRJ
SERRJ
PAR
PAD15
PAD13
PAD11
C_BEJ1
PAD14
PAD12
PAD10
PAD9
50
51
52
53
54
55
56
57
58
59
60
C_BEJ0
PAD6
PAD4
PAD2
PAD0
SLT2
110
111
112
113
114
115
116
117
118
119
120
PAD8
PAD7
PAD5
PAD3
PAD1
+12V
-12V
TCK
GND
TDO
+5V
+5V
INTB#
INTD#
PRSNT1#
RSRVD
PRSNT2#
GND
GND
RSRVD
GND
CLK
GND
REQ#
+5V(I/O)
AD31
AD29
GND
AD27
AD25
+3.3V
C/BE3#
AD23
GND
AD21
AD19
+3.3V
AD17
C/BE2#
GND
IRDY#
+3.3V
DEVSEL#
GND
LOCK#
PERR#
+3.3V
SERR#
+3.3V
C/BE1#
AD14
GND
AD12
AD10
GND
TRST#
+12V
TMS
TDI
+5V
INTA#
INTC#
+5V
RSRVD
+5V(I/O)
RSRVD
GND
GND
RSRVD
RST#
+5V(I/O)
GNT#
GND
RSVRD
AD30
+3.3V
AD28
AD26
GND
AD24
IDSEL
+3.3V
AD22
AD20
GND
AD18
AD16
+3.3V
FRAME#
GND
TRDY#
GND
STOP#
+3.3V
SDONE
SBO#
GND
PAR
AD15
+3.3V
AD13
AD11
GND
AD9
AD8
AD7
+3.3V
AD5
AD3
GND
AD1
+5V(I/O)
ACK64#
+5V
+5V
C/BE0#
+3.3V
AD6
AD4
GND
AD2
AD0
+5V(I/O)
REQ64#
+5V
+5V
PCI Slot
PCI Slot
IDSEL = AD19
Device #3
IDSEL = AD20
Device #4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
INT1J
INT3J
PCIRSTJ
PGNTJ1
PAD30
C
PAD28
PAD26
PAD24
PCIID2
PAD22
PAD20
PAD18
PAD16
FRAMEJ
TRDYJ
STOPJ
PAR
PAD15
D
PAD13
PAD11
PAD9
50
51
52
53
54
55
56
57
58
59
60
C_BEJ0
PAD6
PAD4
PAD2
PAD0
(C) Advanced Micro Devices, Inc.
(800) 222-9323
E
E
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
Title
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
PCI_CONN.SCH
Date: Friday, December 04, 1998
1
2
3
4
Sheet
5
11
of
26
1
2
3
4
5
BUFFERS AND LOGIC ANALYZER HEADERS FOR PCI BUS
VCC
U36
1
48
25
24
PAD[0..31]
JP29
1
2
3
PREQJ0
PGNTJ0
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
PAD0
PAD1
PAD2
PAD3
PAD4
PAD5
PAD6
PAD7
PAD8
PAD9
PAD10
PAD11
PAD12
PAD13
PAD14
PAD15
A
21
4
10
15
HEADER 3X1
PLACE NEAR PCI0 CONNECTOR
1OE#
2OE#
3OE#
4OE#
VPAD[0..31]
7
18
31
42
VCC
VCC
VCC
VCC
2
3
5
6
8
9
11
12
13
14
16
17
19
20
22
23
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
3A1
3A2
3A3
3A4
4A1
4A2
4A3
4A4
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
3Y1
3Y2
3Y3
3Y4
4Y1
4Y2
4Y3
4Y4
GND
GND
GND
GND
GND
GND
GND
GND
VPAD0
VPAD1
VPAD2
VPAD3
VPAD4
VPAD5
VPAD6
VPAD7
VPAD8
VPAD9
VPAD10
VPAD11
VPAD12
VPAD13
VPAD14
VPAD15
VCC
PLACE THEVENIN
TERMINATOR NEAR
HP LOGIC ANALYZER
CONNECTOR
R160
330
P43
VPCICLK
R161
470
28
34
39
45
VPAD30
VPAD28
VPAD26
VPAD24
VPAD22
VPAD20
VPAD18
VPAD16
1
3
5
7
9
11
13
15
17
19
JP30
PREQJ1
PGNTJ1
1
48
25
24
HEADER 3X1
PLACE NEAR PCI1 CONNECTOR
JP31
PREQJ2
PGNTJ2
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
PAD16
PAD17
PAD18
PAD19
PAD20
PAD21
PAD22
PAD23
PAD24
PAD25
PAD26
PAD27
PAD28
PAD29
PAD30
PAD31
1
2
3
HEADER 3X1
PLACE NEAR Am79C972 E/NET
CHIP
21
4
10
15
C
1OE#
2OE#
3OE#
4OE#
2
3
5
6
8
9
11
12
13
14
16
17
19
20
22
23
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
3A1
3A2
3A3
3A4
4A1
4A2
4A3
4A4
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
3Y1
3Y2
3Y3
3Y4
4Y1
4Y2
4Y3
4Y4
GND
GND
GND
GND
GND
GND
GND
GND
VPAD14
VPAD12
VPAD10
VPAD8
VPAD6
VPAD4
VPAD2
VPAD0
VPAD16
VPAD17
VPAD18
VPAD19
VPAD20
VPAD21
VPAD22
VPAD23
VPAD24
VPAD25
VPAD26
VPAD27
VPAD28
VPAD29
VPAD30
VPAD31
R97
330
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
C_BEJ3
C_BEJ2
C_BEJ1
C_BEJ0
FRAMEJ
IRDYJ
TRDYJ
DEVSELJ
PCICLK
D
PLACE THEVENIN
TERMINATOR NEAR
’ABT16244 BUFFER
R98
470
INT0J
INT1J
INT2J
INT3J
PCIRSTJ
STOPJ
PAR
21
4
10
15
HP Conn.
1
1
3
5
7
9
11
13
15
17
19
+5V
CLK1
D14
D12
D10
D8
D6
D4
D2
D0
CLK2
D15
D13
D11
D9
D7
D5
D3
D1
GND
2
4
6
8
10
12
14
16
18
20
VPAD15
VPAD13
VPAD11
VPAD9
VPAD7
VPAD5
VPAD3
VPAD1
2
19
20
Top View
HP CONN
3M:2520-6003UB
28
34
39
45
C
P45
VCC
VCC
VPAD31
VPAD29
VPAD27
VPAD25
VPAD23
VPAD21
VPAD19
VPAD17
P44
7
18
31
42
VCC
VCC
VCC
VCC
2
3
5
6
8
9
11
12
13
14
16
17
19
20
22
23
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
3A1
3A2
3A3
3A4
4A1
4A2
4A3
4A4
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
3Y1
3Y2
3Y3
3Y4
4Y1
4Y2
4Y3
4Y4
GND
GND
GND
GND
GND
GND
GND
GND
1
3
5
7
9
11
13
15
17
19
VC_BEJ2
VC_BEJ0
VIRDYJ
VTRDYJ
U40
1OE#
2OE#
3OE#
4OE#
2
4
6
8
10
12
14
16
18
20
B
7
18
31
42
VCC
VCC
VCC
VCC
74ABT16244
1
48
25
24
CLK2
D15
D13
D11
D9
D7
D5
D3
D1
GND
VCC
U38
1
2
3
+5V
CLK1
D14
D12
D10
D8
D6
D4
D2
D0
HP CONN
3M:2520-6003UB
74ABT16244
B
A
VC_BEJ3
VC_BEJ2
VC_BEJ1
VC_BEJ0
VFRAMEJ
VIRDYJ
VTRDYJ
VDEVSELJ
VPCICLK
VINT0J
VINT1J
VINT2J
VINT3J
VPCIRSTJ
VSTOPJ
VPAR
+5V
CLK1
D14
D12
D10
D8
D6
D4
D2
D0
CLK2
D15
D13
D11
D9
D7
D5
D3
D1
GND
2
4
6
8
10
12
14
16
18
20
VC_BEJ3
VC_BEJ1
VFRAMEJ
VDEVSELJ
VSTOPJ
HP CONN
3M:2520-6003UB
P46
1
3
5
7
9
11
13
15
17
19
VINT2J
VINT0J
VPAR
VSERRJ
28
34
39
45
+5V
CLK1
D14
D12
D10
D8
D6
D4
D2
D0
CLK2
D15
D13
D11
D9
D7
D5
D3
D1
GND
2
4
6
8
10
12
14
16
18
20
VINT3J
VINT1J
VPCIRSTJ
VPERRJ
VPLOCKJ
D
HP CONN
3M:2520-6003UB
74ABT16244
U42
2
4
6
8
11
13
15
17
PLOCKJ
PERRJ
SERRJ
E
1
19
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
18
16
14
12
9
7
5
3
VPLOCKJ
VPERRJ
VSERRJ
(C) Advanced Micro Devices, Inc.
(800) 222-9323
E
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
1G
2G
74ABT244
Title
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
PCI_VIS.SCH
Date: Friday, December 04, 1998
1
2
3
4
Sheet
5
12
of
26
1
2
3
4
5
ETHERNET CONTROLLER, BYPASS CAPACITORS AND POWER SUPPLY FOR ETHERNET CONTROLLER,
VCC3
AND SERIAL EEPROMS
VCC3
VCC
VCC3
EECS_1K
ENETPG
R105
1K
C_BEJ0
C_BEJ1
C_BEJ2
C_BEJ3
PCIID3
FRAMEJ
IRDYJ
TRDYJ
DEVSELJ
STOPJ
PERRJ
SERRJ
PAR
INT2J
PCIRSTJ
PREQJ2
PGNTJ2
1
17
18
20
22
23
25
26
28
142
143
146
145
PCICLK3
144
131
132
133
141
5
13
21
29
38
45
53
147
155
65
77
88
101
113
124
136
VDDB
VDDB
VDDB
VDDB
VDDB
VDDB
VDDB
PME#
WUMI#
RWU
PG
VCC3
EBDA15
EBDA14
EBDA13
EBDA12
EBDA11
EBDA10
EBDA9
EBDA8
EBD7
EBD6
EBD5
EBD4
EBD3
EBD2
EBD1
EBD0
PCICLK
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
16
32
56
72
90
110
130
150
DO
NC
GND
4
3
5
7
8
VCC
6
ORG
CS
SK
DI
DO
NC
GND
4
A
5
NM93C66M8
VCC3
EBUA_EBA7
EBUA_EBA6
EBUA_EBA5
EBUA_EBA4
EBUA_EBA3
EBUA_EBA2
EBUA_EBA1
EBUA_EBA0
IDSEL
FRAME#
IRDY#
TRDY#
DEVSEL#
STOP#
PERR#
SERR#
PAR
INTA#
PCIRST#
PCIREQ#
PCIGNT#
DI
1
2
NM93C46N
For ’972 E/net Config.
For User NV Data
R104
10K
129
EAR#
122
TBC_IN
123
TBC_EN
125
LED2#/SRDCLK/MIIRXFRTGE
120
EEDO/LED3#/SRD/MIIRXFRTGD
121
EEDI/LED0#
126
EESK/LED1#/SFBD
128
EECS
C_BE0#
C_BE1#
C_BE2#
C_BE3#
U81
EECS_4K
8
VCC
6
ORG
CS
SK
7
PHY_RST
MDIO
MDC
RXD3
RXD2
RXD1
RXD0
RX_DV
RX_CLK/RXCLK
RX_ER/RXDAT
TX_ER
TX_CLK/TXCLK
TX_EN/TXEN
TXD3
TXD2
TXD1
TXD0/TXDAT
COL/CLSN
CRS/RXEN
134
TCK
135
TMS
139
TDI
137
TDO
C
42
30
15
160
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AD8
AD9
AD10
AD11
AD12
AD13
AD14
AD15
AD16
AD17
AD18
AD19
AD20
AD21
AD22
AD23
AD24
AD25
AD26
AD27
AD28
AD29
AD30
AD31
1
2
3
EEDO
EEDI
EESK
EECS
119
118
116
115
114
112
111
109
108
107
105
104
103
97
98
99
102
96
94
PHY_RST
MDIO
MDC
ERXD3
ERXD2
ERXD1
ERXD0
RX_DV
RX_CLK_RXCLK
RX_ER_RXDAT
TX_ER
TX_CLK_TXCLK
TX_EN_TXEN
ETXD3
ETXD2
ETXD1
ETXD0_TXDAT
COL_CLSN
CRS_RXEN
71
70
69
68
67
66
63
61
B
U82A
EECS
1
3
EECS_1K
6
EECS_4K
2
74F08
82
81
80
79
78
76
75
73
C
U82B
U83A
CLKCTR
1
4
2
CLKCTR#
5
Defaults to "1"
74F08
VCC3
83
85
86
87
89
91
92
93
74F14
R106
4.7K
60
EBCLK
59
AS_EBOE#
58
EBWE#
57
EROMCS#
VSSB
VSSB
VSSB
VSSB
VSSB
VSSB
VSSB
VSSB
VSSB
VSSB
VSSB
VSSB
VSSB
VSSB
VSSB
VSSB
VSSB
B
55
54
52
50
49
47
46
44
41
40
39
37
36
34
33
31
14
12
10
9
7
6
4
2
159
158
156
154
153
152
151
148
3
11
19
27
35
43
51
62
74
84
95
106
117
127
138
149
157
PAD0
PAD1
PAD2
PAD3
PAD4
PAD5
PAD6
PAD7
PAD8
PAD9
PAD10
PAD11
PAD12
PAD13
PAD14
PAD15
PAD16
PAD17
PAD18
PAD19
PAD20
PAD21
PAD22
PAD23
PAD24
PAD25
PAD26
PAD27
PAD28
PAD29
PAD30
PAD31
VDD
VDD
VDD
VDD
VDD
VDD
U51
VDD_PCI
VDD_PCI
VDD_PCI
VDD_PCI
VDD_PCI
VDD_PCI
VDD_PCI
VDD_PCI
VDD_PCI
8
24
48
64
100
140
A
PAD[0..31]
VCC
U54
R103
1K
ENETEBCLK
Am79C972 (PQR160)
D
D
IDSEL = AD21
Device #5
Set CSR116 bit 0 to "1" for proper PHY_RST operation
Spare "AND" Gates
VCC3
U82C
9
8
10
VCC
U53
3
1
C85
VIN
GND_ADJ
VCC3
VOUT
+
C78
2.2uF
C79
C80
C81
C82
C83
0.1uF
0.1uF
0.1uF
0.1uF
0.01uF
74F08
U82D
VCC
12
11
4
13
74F08
+
C84
10uF
VCC3
1uF
MC33269DT-3.3
(C) Advanced Micro Devices, Inc.
(800) 222-9323
E
E
PLACE INPUT AND OUTPUT FILTER CAPS
AS CLOSE AS POSSIBLE TO REGULATOR
+
C86
2.2uF
+
C87
10uF
C88
C89
C90
C91
C92
C93
C94
C95
C96
C97
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.01uF
0.01uF
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
Title
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
ENET1.SCH
Date: Friday, December 04, 1998
1
2
3
4
Sheet
5
13
of
26
1
2
3
4
5
ETHERNET PHY CHIP, ETHERNET CONNECTOR, AND LEDS
Y5
A
A
1
2
4
3
C98
C99
33pF
25MHz_SMD
ECLIPTEK ECSMA-25.00MTR
ETXD3
ETXD2
ETXD1
ETXD0_TXDAT
TX_CLK_TXCLK
TX_EN_TXEN
COL_CLSN
RX_DV
RX_ER_RXDAT
RX_CLK_RXCLK
ERXD3
ERXD2
ERXD1
ERXD0
CRS_RXEN
MDIO
VCC
MDC
13
15
3
4
5
6
7
8
33
14
34
16
R114
1.00K, 1%
MFV0
R115
1.00K, 1%
PHY_RST
LEDS#
R117NET
C
38
39
40
41
42
LEDT#
LEDR#
32
35
36
R117
1.00K, 1%
11
XO
TPIP
ENET_RD+
29
TPIN
TPOP
ENET_TD+
21
ENET _RES
TREF
FDE
MDDIS
TRSTE
MF4
MF3
MF2
MF1
MF0
CFG1
CFG0
PWRDWN
RESET#
VCCT
VCCA
RBIAS
C111
0.1uF
RD+
RDRD_CT
RX+
RXRX_CT
TD_CT
TD+
TD-
12
TX_CT
11
TX+
10
TX-
1
2
3
4
5
6
7
8
ENET_ R1
TXCT
ENET_ R2
1
2
3
4
5
6
7
8
11
12
PE68515
R110
75, 1%
R111
75, 1%
R112
75, 1%
B
GND1
GND2
AMP RJ45A
R113
75, 1%
555153-1
ENET_TD-
23
ENET _CAP
ENET_TREF
20
C101
0.001uF, 2KV (MIN.)
19
24
25
RBIAS
C102
0.01uF
C103
0.01uF
VCC
R116
22K, 1%
LEDS#
LEDC#
LEDL#
LEDT#
LEDR#
7
6
5
C100
0.1uF
R109
49.9, 1%
L4
C104
0.01uF
C105
0.1uF
AVCC
1
2
C
FB
GNDT
GNDA
NC1
NC2
NC3
+ C106
10uF
22
AGND
26
+ C107
10uF
L5
1
2
FB
L6
VCCR
+ C110
10uF
14
15
16
R108
49.9, 1%
TPON
ENET_TX+
ENET_TXENET_RX+
ENET_RXRXCT
T1
1
2
3
ENET_RD-
30
37
AAVCC
1
2
FB
C109
0.01uF
VCC3
53
J10
R107
100, 1%
VCCIO
GNDR
VCC
31
AAGND
+ C108
10uF
L7
1
2
FB
9
VCCD
17
FIBOP
18
FIBON
C112
0.1uF
GNDIO
TEST
FIBIP
FIBIN
12
27
28
D
10
8
VCC
LXT970QC
7
6
5
52
10
43
GNDD
D
EDGE OF BOARD
B
TX_ER
TXD4
TXD3
TXD2
TXD1
TXD0
TX_CLK
TX_EN
COL
RX_DV
RX_ER
RX_CLK
RXD4
RXD3
RXD2
RXD1
RXD0
CRS
MDIO
FDS/MDINT
MDC
RD_CT
56
63
62
61
60
59
57
58
64
51
55
54
46
47
48
49
50
1
44
2
45
XI
U52
TX_ER
33pF
PHY_ XO
12
PHY _XI
4
3
R149
270
R150
270
R151
270
2
1
9
2
E
4
3
ECLIPTEK ECSMA-25.00MTR
RLEDR#
RJ45 PINOUT, COMPONENT SIDE VIEW
PINS: 1-8
NP MOUNTING HOLES: 9, 10
SHIELD MOUNTING HOLES:
11, 12
2
1
D12
LED (SOT23)
LED (SOT23)
LED (SOT23)
3
1
D11
3
2
D10
3
1
2
1
2
1
RLEDT#
RLEDS#
11
(C) Advanced Micro Devices, Inc.
(800) 222-9323
E
3
LEDS#
LEDT#
LINK SPEED
Red
TX DATA
Green
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
LEDR#
LUMEX SOT23 LED
RX DATA
Green
Title
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
ENET2.SCH
Date: Friday, December 04, 1998
1
2
3
4
Sheet
5
14
of
26
1
2
3
4
5
IDE INTERFACE AND BOARD BYPASS CAPACITORS
HDD[0..15]
VCC
Byass Capacitors For The Board
VCC
RP6
BC3
BC4
BC5
BC6
BC7
BC1
BC2
BC8
BC9
BC10
BC11
BC12
BC13
BC14
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
BC15
BC16
BC17
BC18
BC19
BC20
BC21
BC22
BC23
BC24
BC25
BC26
BC27
BC28
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
2
3
4
5
6
7
8
9
10
HDD7
HDD6
HDD5
HDD4
HDD3
HDD2
HDD13
HDD1
A
VCC
O2 C
O3
O4
O5
O6
O7
O8
O9
O10
RP5
1
1
10K-10P
BC30
BC31
BC32
BC33
BC34
BC35
BC36
BC37
BC38
BC39
BC40
BC41
BC42
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
0.1uF
HDRQ0
HDIOWJ
HDIORJ
HDIORDY
HDACK0
IRQ14
HDA1
HDA0
HDCSJ0
Place one bypass capacitor near each chip Vcc pin, except:
’ABT chips get one on each side near end Vcc pins
QFP chips get one on each side by central Vcc pin
VCC
TC12
10uF
+
TC2
10uF
+
TC24
10uF
+
J5LED
VCC
+
TC25
10uF
BC43
0.1uF
BC44
0.1uF
BC45
0.1uF
BC46
0.1uF
VCC
BC47
O2
O3
O4
O5
O6
O7
O8
O9
O10
2
3
4
5
6
7
8
9
10
HDD8
HDD9
HDD10
HDD11
HDD12
HDD15
HDD14
HDD0
A
10K-10P
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
HDD7
HDD6
HDD5
HDD4
HDD3
HDD2
HDD1
HDD0
VCC
BC29
C
J5
SYSRSTJ
B
HDD[0..15]
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
HDD8
HDD9
HDD10
HDD11
HDD12
HDD13
HDD14
HDD15
B
HDIO16J
HDA2
HDCSJ1
CNN-40C
HD ACTIVE LED
R62
0.1uF
J5LEDR
1
2
3
D13
LED (SOT23)
270
IDE HARD DISK 1
Distribute Tantalum capacitors around the board
C
C
J7
SYSRSTJ
HDD7
HDD6
HDD5
HDD4
HDD3
HDD2
HDD1
HDD0
J7LED
HDRQ1
HDIOWJ
HDIORJ
HDIORDY
HDACK1
IRQ15
HDA1
HDA0
HDCSJ2
D
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
HDD8
HDD9
HDD10
HDD11
HDD12
HDD13
HDD14
HDD15
RP7
HDIO16J
HDA2
HDCSJ3
HDCSJ1
HDCSJ0
HDCSJ3
HDCSJ2
HDA0
HDA2
HDA1
HDIO16J
10
9
8
7
6
5
4
3
2
O10
O9
O8
O7
O6
O5
O4
O3
O2 C
VCC
1
10K-10P
D
R21
CNN-40C
HDIORJ
VCC
1K
R20
HD ACTIVE LED
R63
HDIOWJ
J7LEDR
1
2
3
D14
LED (SOT23)
270
1K
R90
IDE HARD DISK 2
HDIORDY
4.7k
(C) Advanced Micro Devices, Inc.
E
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
1
3
CATH
2
Top View
(800) 222-9323
E
LUMEX LED (SOT23)
Title
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
IDE.SCH
Date: Friday, December 04, 1998
1
2
3
4
Sheet
5
15
of
26
1
2
3
4
5
FINALi M1487 INTERFACE
VCC
A
RP12
1
C
2
3
4
5
6
7
8
9
10
O2
O3
O4
O5
O6
O7
O8
O9
O10
DRQ0
DRQ1
DRQ2
DRQ3
DRQ5
DRQ6
DRQ7
DACK7
DACK6
DACK5
DACK3
DACK2
DACK1
DACK0
IRQ15
IRQ14
IRQ12
IRQ11
IRQ10
IRQ9
IRQ7
IRQ6
IRQ5
IRQ4
IRQ3
IRQ1
IRQ8J
XBUSCSJ
CLEAROKJ
CMPGNTJ
CMPSTJ
ENRTC
A
VCC
TC17
10K-10P
C50
C173
C174
0.1uF
0.1uF
0.1uF
3
11
93
92
90
89
88
83
96
97
99
101
100
102
86
94
84
104
106
108
103
87
91
85
105
107
109
1
40
60
80
120
144
10
41
62
98
128
138
160
+
10uF
IRQ8J
IRQ1
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ9
IRQ10
IRQ11
IRQ12
IRQ14
IRQ15
DACKJ0
DACKJ1
DACKJ2
DACKJ3
DACKJ5
DACKJ6
DACKJ7
DREQ0
DREQ1
DREQ2
DREQ3
DREQ5
DREQ6
DREQ7
VCC
VCC
VCC
VCC
VCC
VCC
GND
GND
GND
GND
GND
GND
GND
U21
U15A
B
2
PCIRSTJ
CPUCLK2
CPURST
1
SYSRST
A20MJ
INTR
FERRJ
IGNNEJ
M1487NMI
SMIJ
STPCLKJ
PCICLK
74F04
U15B
4
SYSRSTJ
61
20
63
22
23
16
17
18
19
21
46
81
49
70
13
50
53
54
52
51
55
47
48
57
59
56
58
73
78
14
15
65
64
74
75
72
71
5
6
12
3
74F04
JRESET
U15D
8
ZRSTDRV
OSC
ATCLK
PWG
PREQJ0
PREQJ1
PREQJ2
PGNTJ0
PGNTJ1
PGNTJ2
FRAMEJ
IRDYJ
INT0J
INT1J
INT2J
INT3J
XBUSCSJ
RTCAS
9
74F04
U15C
R147
6
RRDRV#
RSTDRV#
5
74F04
22
C
OSCI
OSCO
R79
10M
SPEAK
TURBO
EXTSMI
Y4
4
3
CLKCTR
ENRTC
1
2
VBAT
CLEAROKJ
CMPGNTJ
CMPSTJ
IBCSTJ
HA2
HA3
HA4
HA5
HA6
HA7
HA8
HA9
HA10
HA11
HA12
HA13
HA14
HA15
HA16
HA17
IOCS16J
MEMCS16J
MEMRJ
MEMWJ
SMEMRJ
SMEMWJ
IOCHRDY
OWAITJ
BALE
IORJ
IOWJ
MASTERJ
TC
IOCHCKJ
REFRESHJ
SBHEJ
AEN
C54
10pF
32.768KHz_SMD
ECLIPTEK
ECPSM29T-32.768KTR
44
43
45
42
39
38
24
25
26
27
29
31
33
34
32
28
30
35
36
37
110
111
67
79
66
76
139
2
68
69
77
82
95
129
158
159
140
C53
10pF
CPUCLK
CPURST
SYSRST
A20MJ
INTR
FERRJ
IGNNEJ
NMI
SMIJ
STPCLKJ
PCICLK
SYSRSTJ
OSC
ATCLK
PWG
PREQJ0
PREQJ1
PREQJ2
PGNTJ0
PGNTJ1
PGNTJ2
FARMEJ
IRDYJ
INT0J
INT1J
INT2J
INT3J
XBUSCSJ
RTCAS
OSC1
OSC2
SPEAKER
TURBO
EXTSMI
SPLED
CLKCTR
ENRTC
KBCLK
KBDATA
VBAT
R58
ENRTC
D
1K
OFF: ENABLE INTERNAL RTC
ON: DISABLE INTERNAL RTC
137
136
135
134
133
132
131
130
119
121
127
126
125
124
123
122
7
4
157
156
155
154
152
151
150
149
148
147
146
9
8
153
145
143
142
141
118
117
116
115
114
113
112
SD0
SD1
SD2
SD3
SD4
SD5
SD6
SD7
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15
SA[0..19]
C
LA[17..23]
LA[17..23]
ZAEN
ZSBHEJ
ZREFSHJ
IOCHKJ
TC
MASTERJ
ZIOWJ
ZIORJ
ZBALE
N0WSJ
IOCHRDYJ
ZSMEMWJ
ZSMEMRJ
ZMWJ
ZMRJ
MEM16J
IO16J
CMPSTJ
GA[2..17]
R170
IBCSTJ
DISABLES INTERNAL KBC
1K
SA[0..19]
M1487
*1K
GA[2..17]
B
LA17
LA18
LA19
LA20
LA21
LA22
LA23
R59
OFF: 1X CPU-TO-PCI BUS FREQUENCY
ON: 2X CPU-TO-PCI BUS FREQUENCY
SD[0..15]
SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
SA8
SA9
SA10
SA11
SA12
SA13
SA14
SA15
SA16
SA17
SA18
SA19
GA2
GA3
GA4
GA5
GA6
GA7
GA8
GA9
GA10
GA11
GA12
GA13
GA14
GA15
GA16
GA17
CLEAROKJ
CMPGNTJ
CMPSTJ
IBCSTJ
SD[0..15]
SD0
SD1
SD2
SD3
SD4
SD5
SD6
SD7
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15
SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
SA8
SA9
SA10
SA11
SA12
SA13
SA14
SA15
SA16
SA17
SA18
SA19
LA17
LA18
LA19
LA20
LA21
LA22
LA23
D
*=Do Not Populate
(C) Advanced Micro Devices, Inc.
E
1
(800) 222-9323
E
2
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
Title
4
3
ECLIPTEK ECPSM29T-32.768KTR
(COMPONENT SIDE VIEW)
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
M1487.SCH
Date: Friday, December 04, 1998
1
2
3
4
Sheet
5
16
of
26
1
2
3
4
5
BIOS ROM, ISA SIGNAL SERIES TERMINATION; BATTERY AND SPEAKER CIRCUITS; RESET, SMI, AND NMI PUSHBUTTONS
VCC
A
VCC
SA[0..19]
SA[0..19]
12
11
10
9
8
7
6
5
27
26
23
25
4
28
29
3
2
SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
SA8
SA9
SA10
SA11
SA12
SA13
SA14
SA15
SA16
XBUSCSJ
MRDJ
B
GA[2..9]
22
24
31
SMEMWJ
VCC
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
13
14
15
17
18
19
20
21
ROM Data
Transferred on
FINALi LinkBus
GA2
GA3
GA4
GA5
GA6
GA7
GA8
GA9
1
3
5
7
AEN
SBHEJ
RSTDRV
ZBALE
GND
ZAEN
ZSBHEJ
ZRSTDRV
BALE
RN10
SMEMWJ
ZSMEMRJ
ZIORJ
IOWJ
R178
1K
ROM_A17
ROM_A18
1
3
5
7
1
2
3
SA17
VCC
16
1
2
3
SA18
Am29F010-90
ZSMEMWJ
SMEMRJ
IORJ
ZIOWJ
VCC
33-8B
R71
470
Jumpers to allow multiple 128K BIOS
images in the same Flash ROM chip
and/or non-PC applications that can use
more than 128Kx8 BIOS ROM
B
TURBO SWITCH FUNCTION
RN11
1
3
5
7
REFRESHJ
ZMRJ
MWTJ
ATCLKO
HEADER 3X1
FINALi only supports 1MBit Flash ROM chip
(128Kx8 worth of address space) for legacy,
desktop PC applications
2
4
6
8
R68
10K
HEADER 3X1
JP33
CE
OE
WR
2
4
6
8
VCC
JP32
A17
A18
A
RN12
33-8B
CTS 743 08-3 330 J TR
VCC
R177
1K
30
1
R76
10K
GA[2..9]
U14
32
O10
O9
O8
O7
O6
O5
O4
O3
O2 C
VCC
10
9
8
7
6
5
4
3
2
VCC
R77
10K
1
RP18
10K-10P
2
4
6
8
ZREFSHJ
MRDJ
ZMWJ
ATCLK
TURBO
R70
*2.2K
33-8B
VCC
1
1
BT1P
3
D1
3
VBAT
D8
MMBD4148 (SOT23)
MMBD4148 (SOT23)
R34
1K
2
BT1
3V Coincell (socket)
KEYSTONE 103 or 106
1
3
R139
100
U83B
1
Press Switch To Assert NMI
U77A
EXTNMI#
SW2NET
3
EXTNMI
4
1
3
C
SW2
PBNO
VCC
Q1
MMBT3906 (SOT23)
2
3
(TO Am486 CPU)
74F14
+
R47
TC22
10uF
C
NMI
2
74F32
M1487NMI
Q1R
(FROM M1487)
0
1
VCC
VCC
D5
MMBD4148 (SOT23)
Press Switch To Assert SMI
1
Q2RR
3
Q2
2MMBT3904 (SOT23)
1
3
R140
100
R52
10K
Press Switch To Assert RESET
1
3
1
Q2RQ
D9
MMBD4148 (SOT23)
RREXTSMI
R65
100
RRPWG
PWG
SW1
PBNO
EXTSMI
JP34
SW3
PBNO
1
2
D
R49
10K
+
R64
10K
1
R50
10K
3
R48
51K
TC13
10uF
3
Q1RQ
+
TC23
10uF
+
TC16
10uF
D
HEADER 2X1
Jumper for external RESET# pushbutton
VCC
SPARE ’F14 GATES
U83C
LS1
R81
RRSPEAK
Battery Socket
5
RCSPEAK
33
C52
3
4
1
SPEAK
3
CSPEAK
CRSPEAK
0.1uF
2
E
1
MMBD4148
MMBT3904
MMBT3906
2
(SOT23)
(SOT23)
(SOT23)
9
8
C55
22pF
470
74F14
U83E
D6
MMBD4148 (SOT23)
11
1
C&K SWITCH
1
1
74F14
U83D
3
Q4
2MMBT3904 (SOT23)
3
2
R80
6
SPEAKER
Reset, SMI Switches
(C) Advanced Micro Devices, Inc.
E
Title
74F14
U83F
13
(800) 222-9323
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
10
12
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
ROM_MISC.SCH
74F14
1
2
3
4
Date: Friday, December 04, 1998
Sheet
5
17
of
26
1
2
3
4
5
CLOCK GENERATOR
A
A
Y2
1
2
C161
VCC
4
3
C155
B
VCC
INSTALL PULLUP
RESISTOR AND REMOVE
0-OHM RESISTOR FOR
25MHz CPU AND PCI BUS
14.318MHz_SMD
VCC
OSC
U17
R92
R93
4.7K
1
*4.7K
2
CLKOSCOUT
11
10
17
CLKPU2
CLKPU1
R176
18
0
15
U15E
14.318
OSCout
S0
S1
S2
DOZE#
10
TC14
+
14
AVDD
28
24
MCLK1
25
MCLK2
B2in
B1in
ST#
R42
CLKAVDD1
R41
OSCin
VCC
C
B
R39
4.7K
10pF
CLKOSCIN
10pF
R54
ROSCC
B1OUT1
20
B2out1
21
B2out2
22
B2out3
23
B2out4
B2OUT1
B2OUT2
B2OUT3
B2OUT4
R31
10
R33
B1OUT2
B1OUT3
B1OUT4
R36
R38
10
R22
R57
0
R35
R99
C65
0.1uF
CLKLF1
13
LF1
VSS1
VSS2
VSS3
CPUCLK1
CPUCLK2
CPUCLK3
10
10
CLKAVDD2
+ TC15
10uF
PCICLK1
PCICLK2
10
C
CPUCLK
VCC
AVSS
PCICLK3
PCICLK
0
10
L3
7
16
OSC1
C60
15pF
PLACE SERIES TERMINATORS AS
CLOSE TO U17 AS POSSIBLE
27
3
5
B1out1
6
B1out2
8
B1out3
9
B1out4
VDD1
VDD2
RROSC1
10
10uF
12
10
74F04
MCLK2
C47
0.1uF
CLKAVSS
11
RROSC
10
C41
C43
15pF
15pF
C46
C154
15pF
15pF
C33
15pF
C56
C57
C66
15pF
15pF
15pF
FB
C48
0.1uF
4
19
26
C170
0.1uF
PCICLK AND CPUCLK3 HAVE MULTIPLE LOADS AND ARE
THEVENIN TERMINATED AT THE END OF THE NET
IMI SC464
D
D
1
E
(C) Advanced Micro Devices, Inc.
2
(800) 222-9323
E
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
Title
4
3
ECLIPTEK ECSMAT-14.318MTR
(COMPONENT SIDE VIEW)
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
CLOCK.SCH
Date: Friday, December 04, 1998
1
2
3
4
Sheet
5
18
of
26
1
2
3
4
5
ISA BUS CONNECTORS AND PULLUPS
VCC
-5V
VCC
R75
4.7K
SL2
RSTDRV
A
IRQ9
DRQ2
N0WSJ
B
SMEMWJ
SMEMRJ
IOWJ
IORJ
DACK3
DRQ3
DACK1
DRQ1
REFRESHJ
ATCLKO
IRQ7
IRQ6
IRQ5
IRQ4
IRQ3
DACK2
TC
BALE
OSC1
MEM16J
IO16J
IRQ10
IRQ11
IRQ12
IRQ15
IRQ14
DACK0
DRQ0
DACK5
DRQ5
DACK6
DRQ6
DACK7
DRQ7
MASTERJ
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
-IOCHCK
D7
D6
D5
D4
D3
D2
D1
D0
IOCHRDY
AEN
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
-MEMCS16
-IOCS16
IRQ10
IRQ11
IRQ12
IRQ15
IRQ14
-DACK0
DREQ0
-DACK5
DREQ5
-DACK6
DREQ6
-DACK7
DREQ7
+5V
-MASTER
GND
-SBHE
LA23
LA22
LA21
LA20
LA19
LA18
LA17
-MEMR
-MEMW
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
VCC
1
RP19
10K-10P
DRQ2
IOCHRDYJ
AEN
VCC
1
RP17
10K-10P
SBHEJ
D
VCC
1
N0WSJ
SMEMWJ
SMEMRJ
IOWJ
IORJ
DACK3
DRQ3
DACK1
DRQ1
REFRESHJ
ATCLKO
IRQ7
IRQ6
IRQ5
IRQ4
IRQ3
DACK2
TC
BALE
GND
RESDRV
+5V
IRQ9
-5V
DREQ2
-12V
-0WS
+12V
GND
-SMEMW
-SMEMR
-IOW
-IOR
-DACK3
DREQ3
-DACK1
DREQ1
-REFSH
SYSCLK
IRQ7
IRQ6
IRQ5
IRQ4
IRQ3
-DACK2
TC
ALE
+5V
14.3MHZ
GND
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
MEM16J
IO16J
IRQ10
IRQ11
IRQ12
IRQ15
IRQ14
DACK0
DRQ0
DACK5
DRQ5
DACK6
DRQ6
DACK7
DRQ7
MRDJ
MWTJ
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15
O10
O9
O8
O7
O6
O5
O4
O3
C O2
D7
MMBD4148 (SOT23)
OSC1
LA23
LA22
LA21
LA20
LA19
LA18
LA17
O10
O9
O8
O7
O6
O5
O4
O3
C O2
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
IRQ9
SA19
SA18
SA17
SA16
SA15
SA14
SA13
SA12
SA11
SA10
SA9
SA8
SA7
SA6
SA5
SA4
SA3
SA2
SA1
SA0
O10
O9
O8
O7
O6
O5
O4
O3
C O2
IOCHKJ
VCC
RSTDRV
MASTERJ
AMP 645169-3
RP16
10K-10P
-5V
IOCHKJ
ISA AT Connector
C
-12V
SL1
SD7
SD6
SD5
SD4
SD3
SD2
SD1
SD0
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
+12V
SA[0..19]
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
GND
RESDRV
+5V
IRQ9
-5V
DREQ2
-12V
-0WS
+12V
GND
-SMEMW
-SMEMR
-IOW
-IOR
-DACK3
DREQ3
-DACK1
DREQ1
-REFSH
SYSCLK
IRQ7
IRQ6
IRQ5
IRQ4
IRQ3
-DACK2
TC
ALE
+5V
14.3MHZ
GND
R78
1K
3
-12V
1
+12V
SD[0..15]
-IOCHCK
D7
D6
D5
D4
D3
D2
D1
D0
IOCHRDY
AEN
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
-MEMCS16
-IOCS16
IRQ10
IRQ11
IRQ12
IRQ15
IRQ14
-DACK0
DREQ0
-DACK5
DREQ5
-DACK6
DREQ6
-DACK7
DREQ7
+5V
-MASTER
GND
-SBHE
LA23
LA22
LA21
LA20
LA19
LA18
LA17
-MEMR
-MEMW
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
SD7
SD6
SD5
SD4
SD3
SD2
SD1
SD0
A
IOCHRDYJ
AEN
SA19
SA18
SA17
SA16
SA15
SA14
SA13
SA12
SA11
SA10
SA9
SA8
SA7
SA6
SA5
SA4
SA3
SA2
SA1
SA0
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
B
SBHEJ
LA23
LA22
LA21
LA20
LA19
LA18
LA17
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15
MRDJ
MWTJ
ISA AT Connector
C58
47pF
C64
47pF
10
9 SA12
8 SA13
7 SA14
6 SA15
5 SA16
4 SA17
3 SA18
2 SA19
C
AMP 645169-3
RP15
VCC
10
9 SA4
8 SA5
7 SA6
6 SA7
5 SA8
4 SA9
3 SA10
2 SA11
RP21
O10
O9
O8
O7
O6
O5
O4
O3
C O2
1
10
9 SD0
8 SD1
7 SD2
6 SD3
5 SD4
4 SD5
3 SD6
2 SD7
VCC
1
4.7K-10P
O10
O9
O8
O7
O6
O5
O4
O3
C O2
10
9 SD15
8 SD14
7 SD13
6 SD12
5 SD11
4 SD10
3 SD9
2 SD8
4.7K-10P
SD[0..15]
SD[0..15]
VCC
VCC
RP14
10
9 SA1
8 SA2
7 SA3
6 SA0
5
4
3
2
2
3
4
5
6
7
8
9
10
IRQ9
IRQ8J
IRQ7
IRQ15
IRQ14
IRQ10
IRQ11
IRQ12
IRQ3
IRQ4
IRQ5
IRQ6
O2 C
O3
O4
O5
O6
O7
O8
O9
O10
RP20
1
1
10K-10P
C
O2
O3
O4
O5
O6
O7
O8
O9
O10
2
3
4
5
6
7
8
9
10
LA23
LA22
LA21
LA20
LA19
LA18
LA17
D
10K-10P
LA[17..23]
LA[17..23]
SA[0..19]
VCC
RP13
MEM16J
IO16J
N0WSJ
REFRESHJ
MASTERJ
E
2
3
4
5
6
7
8
O2
O3
O4
O5
O6
O7
O8
C
1
(C) Advanced Micro Devices, Inc.
(800) 222-9323
E
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
330-8P
Title
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
ISA_CONN.SCH
Date: Friday, December 04, 1998
1
2
3
4
Sheet
5
19
of
26
1
2
3
4
5
SUPER I/O CHIP, IrDA INTERFACE, FLOPPY DISK INTERFACE, SERIAL PORT ACTIVITY LEDS
Y1
VCC
C44
39pF
R152
1.5K
SD[0..7]
SD[0..7]
VCC
R153
1.5K
B
PWG
DACK1
DACK2
DACK3
28
36
96
PWG
RSTDRV
58
57
RXD1
CTS1J
DSR1J
DCD1J
RI1J
78
82
80
85
84
RXD2
CTS2J
DSR2J
DCD2J
RI2J
88
92
90
87
86
D15
D16
LED (2mA, SOT23)
LED (2mA, SOT23)
TXD2
2
3
6
47
67
95
15
72
20
37
IRQ3
38
IRQ4
94
IRQ5/ADRx#/PP_MODE1
40
IRQ6
39
IRQ7
AEN
IOR#
IOW#
TC
IOCHRDY
SD0
SD1
SD2
SD3
SD4
SD5
SD6
SD7
3
48
49
50
51
53
54
55
56
1
46
44
45
35
100
U43
SD0
SD1
SD2
SD3
SD4
SD5
SD6
SD7
A
TXD1_LED
3
U84A
74ABT125
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
4
AEN
IORJ
IOWJ
TC
IOCHRDYJ
SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
SA8
SA9
SA10
GND
GND
GND
GND
27
29
30
31
32
33
34
41
42
43
97
VCC
VCC
SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
SA8
SA9
SA10
OSC1
SA[0..10]
OSC2
SA[0..10]
21
1
2
SIOOSC1
SIOOSC2
A
RRRXD1
24MHz_SMD
RRTXD1
C45
39pF
4
3
1
2
1
2
RXD2
5
RXD1_LED
6
U84B
74ABT125
B
VCC
23
DRQ1/UR1_ADD1
52
DRQ2
98
DRQ3
DACK1#
DACK2#
DACK3#
DRQ1
DRQ2
DRQ3
PWRGD
MR
R154
1.5K
R155
1.5K
TXD2
RTS2J
DTR2J
TXD1
IRQ9
R130
IIRQ9
SIO_IRQIN
DENSEL
MOT0
MOT1
DRV0
DRV1
DIR#
STEP#
WDATA#
WGATE#
HDSEL#
INDEX#
TRK0#
WP#
RDATA#
DSKCHG#
IDE_OE#/IRQ10
NCSJ
IDE_CS1#/IRQ11
IDE_CS0#/IRQ9/UR1_ADD0
PDIR/IRQIN
1K
COMPONENT SIDE VIEW
IRTX
IRRX
5
25
26
IRTX/CFG_PORT
IRRX/FDC_ADD
R118
1K
61
62
60
59
75
73
74
76
77
3
RPM
MTR0J
MTR1J
DR0J
DR1J
FDIR
STEPJ
WDATAJ
WGATEJ
HDSEL
INDEXJ
TRK0J
WRTPRTJ
RDATAJ
DSKCHG
9
RXD1
12
J6
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
SuperI/O IrDA Port
PP[0..7]
R100
10
R101
10
R102
47
C67
0.1uF
8
1
VCCIR1
VCC
GND
5
GP1
GP2
TXD
RXD
NC
SD
3
C68
6.8uF
+
PP[0..7]
PSTROBJ
PAUTOFDJ
PINITJ
PSLCTINJ
PERRORJ
PSLCT
PPE
PACKJ
PBUSY
IR1LEDA
LEDA
C69
0.1uF
RP4
1K-10P
D
RPM
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
INDEXJ
MTR0J
DR1J
DR0J
MTR1J
FDIR
STEPJ
WDATAJ
WGATEJ
TRK0J
WRTPRTJ
RDATAJ
HDSEL
DSKCHG
CNN-34C
FLOPY-CON
4
(C) Advanced Micro Devices, Inc.
7
2
IRTX
IRRX
6
(800) 222-9323
E
1
2
2
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
1
Title
IR1SD
4
3
ECLIPTEK ECSMA-25.00MTR
(COMPONENT SIDE VIEW)
U44
TFDS6000
3
KINGBRIGHT SOT23 LED
(COMPONENT SIDE VIEW)
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
2
3
Rev
2.1
SUPER_I/O.SCH
Date: Friday, December 04, 1998
1
3
VCC
PP7
PP6
PP5
PP4
PP3
PP2
PP1
PP0
VCC
9
10
RXD2_LED
11
U84D
74ABT125
M5113A
TFDS6000
E
C
4
D
LEDC
TXD2_LED
8
U84C
74ABT125
2
3
4
5
6
7
8
9
10
2
1
1
2
5
4
3
7
8
9
10
11
12
13
14
16
17
1
10
9
LED (2mA, SOT23)
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
6
71
70
69
68
66
65
64
63
7
BUSY
ACK#
PE
SLCT
ERROR#
SLCTIN#
INIT#
AUTOFD#
STROB#
8
D18
LED (2mA, SOT23)
O2 C
O3
O4
O5
O6
O7
O8
O9
O10
18
19
22
24
99
IIRQ11
D17
3
IIRQ10
SIO_NCSJ
IRQ11
C
RRRXD2
89
TxD2/FDC_EN
91
RTS2#/UR2_ADD0
93
DTR2#/UR2_ADD1
10
RxD2
CTS2#
DSR2#
DCD2#
RI2#/IDE_ADD
1
2
TXD1
RTS1J
DTR1J
1
2
79
TxD1/PP_ADD0
81
RTS1#/PP_ADD1
83
DTR1#/PP_MODE0
13
R127
0
RxD1
CTS1#
DSR1#
DCD1#
RI1#/IDE_EN
RRTXD2
IRQ10
4
Sheet
5
20
of
26
1
2
3
4
5
SERIAL AND PARALLEL PORT INTERFACES
VCC
RP3
2
3
4
5
6
7
8
9
10
A
PP[0..7]
PP[0..7]
O2 C
O3
O4
O5
O6
O7
O8
O9
O10
PP0
PP1
1
3
5
7
PP2
PP3
1
3
5
7
PAUTOFDJ
R6
1K
A
J4
1K-10P
RN5
PSTROBJ
1
PPSTROBJ
PPAUTOFDJ
PPP0
PPERRORJ
PPP1
PPINTJ
PPP2
PPSLCTINJ
PPP3
2
4
6
8
22-8B
RN6
PINITJ
PSLCTINJ
2
4
6
8
1
14
2
15
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
25
13
PPP4
PPP5
22-8B
PPP6
RN7
PP4
PP5
PP6
PP7
2
4
6
8
PPP7
1
3
5
7
PPACKJ
PPBUSY
B
22-8B
R14
PPPE
22
PERRORJ
R17
22
R15
22
R16
22
R18
22
PPSLCT
PACKJ
B
Parallel Port
AMP 745967-7
PBUSY
PPE
PSLCT
C
C26
C24
C21
C18
C16
C32
C27
C25
C23
C20
C17
C15
C31
C22
C19
C29
C30
180pF
180pF
180pF
180pF
180pF
180pF
180pF
180pF
180pF
180pF
180pF
180pF
180pF
180pF
180pF
180pF
180pF
Serial Connector
(Component Side View)
VCC
U45
SIO1C1P
21
22
20
23
19
24
25
18
13
3
C70
RO3
RO2
RO4
DI2
DI3
RO1
DI1
RO5
ON/OFF
C1+
RI3
RI2
RI4
DO2
DO3
RI1
DO1
RI5
C2+
9
8
10
7
11
6
5
12
27
DCD1P#
DSR1P#
RXD1P
RTS1P#
TXD1P
CTS1P#
DTR1P#
RIN1P#
SIO1C2P
C71
SIO1C1M
SIO1VP
4
1
2
C72
C1V+
VCC
C2VGND
26
28
17
1
3
5
7
2
4
6
8
C73
5
1
6
2
7
3
8
4
9
5
4
3
2
C138
C139
C140
C141
C142
C143
C144
C145
180pF
180pF
180pF
180pF
180pF
180pF
180pF
180pF
9
8
7
6
1
SERIAL PORT
AMP 745410-1
22-8B
SIO1C2M
SIO1VM
RS232-5V
LTC1349CG
0.1uF
RDCD1P#
RDSR1P#
RRXD1P#
RRTS1P#
RTXD1P#
RCTS1P#
RDTR1P#
RRIN1P#
2
4
6
8
22-8B
RN14
0.1uF
0.1uF
VCC
1
3
5
7
C
J9
RN13
DCD1J
DSR1J
RXD1
RTS1J
TXD1
CTS1J
DTR1J
RI1J
Parallel
Connector
1
14
0.1uF
2
15
3
D
D
16
4
17
5
VCC
18
U46
SIO2C1P
21
22
20
23
19
24
25
18
13
3
C74
RO3
RO2
RO4
DI2
DI3
RO1
DI1
RO5
ON/OFF
C1+
RI3
RI2
RI4
DO2
DO3
RI1
DO1
RI5
C2+
9
8
10
7
11
6
5
12
27
DCD2P#
DSR2P#
RXD2P
RTS2P#
TXD2P
CTS2P#
DTR2P#
RIN2P#
SIO2C2P
C75
0.1uF
0.1uF
SIO2C1M
SIO2VP
C76
E
VCC
0.1uF
4
1
2
C1V+
VCC
RS232-5V
LTC1349CG
C2VGND
26
28
17
1
3
5
7
RDCD2P#
RDSR2P#
RRXD2P#
RRTS2P#
RTXD2P#
RCTS2P#
RDTR2P#
RRIN2P#
2
4
6
8
22-8B
RN16
1
3
5
7
2
4
6
8
C77
19
1
6
2
7
3
8
4
9
5
7
20
8
21
9
22
10
23
11
24
12
SERIAL PORT
AMP 745410-1
22-8B
SIO2C2M
SIO2VM
6
J8
RN15
DCD2J
DSR2J
RXD2
RTS2J
TXD2
CTS2J
DTR2J
RI2J
C146
C147
C148
C149
C150
C151
C152
C153
180pF
180pF
180pF
180pF
180pF
180pF
180pF
180pF
25
13
(Component Side View)
(C) Advanced Micro Devices, Inc.
(800) 222-9323
E
0.1uF
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
Title
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
SERIAL_PARALLEL.SCH
Date: Friday, December 04, 1998
1
2
3
4
Sheet
5
21
of
26
1
2
3
4
5
INTERFACE FOR ISA BUS MEMORY AND HEX DISPLAYS
LA[17..23]
ISAA[1..23]
U69
3
4
7
8
13
14
17
18
LA23
LA22
LA21
LA20
LA19
LA18
LA17
A
1
11
BALE
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
D0
D1
D2
D3
D4
D5
D6
D7
2
5
6
9
12
15
16
19
RSTDRV
IORJ
ISAA23
ISAA22
ISAA21
ISAA20
ISAA19
ISAA18
ISAA17
BALE
ATCLKO
REFRESHJ
U55
OE#
E
VCC
SA[0..16]
ISAA1
ISAA2
ISAA3
ISAA4
ISAA5
ISAA6
ISAA7
ISAA8
ISAA9
ISAA10
ISAA11
ISAA12
ISAA13
ISAA14
ISAA15
ISAA16
ISAA17
ISAA18
ISAA19
ISAA20
ISAA21
ISAA22
ISAA23
U70
SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
SA8
SA9
SA10
SA11
SA12
SA13
SA14
SA15
SA16
B
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
21
4
10
15
1OE#
2OE#
3OE#
4OE#
VCC
VCC
VCC
VCC
1A1
1A2
1A3
1A4
2A1
2A2
2A3
2A4
3A1
3A2
3A3
3A4
4A1
4A2
4A3
4A4
1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4
3Y1
3Y2
3Y3
3Y4
4Y1
4Y2
4Y3
4Y4
GND
GND
GND
GND
GND
GND
GND
GND
7
18
31
42
2
3
5
6
8
9
11
12
13
14
16
17
19
20
22
23
ISAA1
ISAA2
ISAA3
ISAA4
ISAA5
ISAA6
ISAA7
ISAA8
ISAA9
ISAA10
ISAA11
ISAA12
ISAA13
ISAA14
ISAA15
ISAA16
93
94
95
96
97
99
6
8
9
10
11
12
19
20
21
22
23
25
32
34
35
36
37
38
43
44
45
46
47
49
SMEMWJ
SMEMRJ
IOWJ
AEN
MRDJ
MWTJ
74ABT373
1
48
25
24
A
XBUSCSJ
SA0
28
34
39
45
3
28
53
78
74ABT16244
SD[0..15]
1
2
16
17
29
30
40
41
51
52
66
67
79
80
90
91
ISAD[0..15]
P48
VCC
MACH_TCK
MACH_TMS
MACH_TDI
MACH_TDO
U71
C
DIR245
1
24
EN245#
48
25
SD0
SD1
SD2
SD3
SD4
SD5
SD6
SD7
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15
47
46
44
43
41
40
38
37
36
35
33
32
30
29
27
26
21
4
10
15
D
1DIR
2DIR
VCC
VCC
VCC
VCC
1G#
2G#
1A1
1A2
1A3
1A4
1A5
1A6
1A7
1A8
2A1
2A2
2A3
2A4
2A5
2A6
2A7
2A8
1B1
1B2
1B3
1B4
1B5
1B6
1B7
1B8
2B1
2B2
2B3
2B4
2B5
2B6
2B7
2B8
GND
GND
GND
GND
GND
GND
GND
GND
7
18
31
42
1
3
5
7
9
VCC
2
4
6
8
10
LOW
R134 1K
HEADER2X5; SHRD
2
3
5
6
8
9
11
12
13
14
16
17
19
20
22
23
ISAD0
ISAD1
ISAD2
ISAD3
ISAD4
ISAD5
ISAD6
ISAD7
ISAD8
ISAD9
ISAD10
ISAD11
ISAD12
ISAD13
ISAD14
ISAD15
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
I/O8
I/O9
I/O10
I/O11
I/O12
I/O13
I/O14
I/O15
I/O16
I/O17
I/O18
I/O19
I/O20
I/O21
I/O22
I/O23
I/O24
I/O25
I/O26
I/O27
I/O28
I/O29
I/O30
I/O31
I/O32
I/O33
I/O34
I/O35
I/O36
I/O37
I/O38
I/O39
I/O40
I/O41
I/O42
I/O43
I/O44
I/O45
I/O46
I/O47
I0/CLK0
I1/CLK1
I2
I3
I4/CLK2
I5/CLK3
I6
I7
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
TDI
TCK
TMS
TDO
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
56
58
59
60
61
62
69
70
71
72
73
75
82
84
85
86
87
88
13
18
26
54
63
68
76
4
XBUSCSJ
N0WSJ
MEM16J
IOCHRDYJ
ROMCE#
ROMOE#
ROMWE#
EN245#
DIR245
P80CS#
P680CS#
B
ATCLKO
ATCLKO
BALE
IORJ
RSTDRV
5
7
24
27
31
33
48
50
55
57
74
77
81
83
98
100
VCC
C
14
15
39
42
64
65
89
92
MACH221SP-7Y
ISACNTL.J1
Rev. 1.6
VCC
U72
3
2
13
12
ISAD4
ISAD5
ISAD6
ISAD7
28
34
39
45
P80CS#
74ABT16245
P80HD
5
8
4
10
R135
330
DA
DB
DC
DD
STRB
BLNK
LDC
RDC
VCC
LED
NC
NC
NC
GND
14
1
VCC
U73
3
2
13
12
ISAD0
ISAD1
ISAD2
ISAD3
6
9
11
7
P80LD
Hex Display
TI - TIL311
5
8
4
10
DA
DB
DC
DD
STRB
BLNK
LDC
RDC
VCC
LED
NC
NC
NC
GND
14
1
PORT 80
6
9
11
D
7
Hex Display
TI - TIL311
R136
330
MACH221SP
100 99
82
81
VCC
U74
1
80
2
79
78
ISAD4
ISAD5
ISAD6
ISAD7
JTAG Connector
P680CS#
3
2
13
12
53
5
8
P680HD 4
10
29
52
R137
330
30
51
1
2
E
9
DA
DB
DC
DD
STRB
BLNK
LDC
RDC
VCC
LED
NC
NC
NC
GND
Hex Display
TI - TIL311
14
1
6
9
11
7
VCC
U75
3
2
13
12
ISAD0
ISAD1
ISAD2
ISAD3
P680LD
R138
330
5
8
4
10
DA
DB
DC
DD
STRB
BLNK
LDC
RDC
VCC
LED
NC
NC
NC
GND
14
1
PORT 680
6
9
11
(C) Advanced Micro Devices, Inc.
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
Hex Display
TI - TIL311
Title
10
Size
31
32
49
50
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
ISA_MEM1.SCH
Top View
Date: Friday, December 04, 1998
1
(800) 222-9323
E
7
2
3
4
Sheet
5
22
of
26
1
2
3
4
5
ISA BUS FLASH MEMORY
A
A
ISAD[0..15]
ISAA[1..21]
U56
B
VCC
R131
ISAA1
ISAA2
ISAA3
ISAA4
ISAA5
ISAA6
ISAA7
ISAA8
ISAA9
ISAA10
ISAA11
ISAA12
ISAA13
ISAA14
ISAA15
ISAA16
ISAA17
ISAA18
ISAA19
25
24
23
22
21
20
19
18
8
7
6
5
4
3
2
1
48
17
16
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
DQ8
DQ9
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15/A-1
RY/BY#
29
31
33
35
38
40
42
44
ISAD0
ISAD1
ISAD2
ISAD3
ISAD4
ISAD5
ISAD6
ISAD7
30
32
34
36
39
41
43
45
ISAD8
ISAD9
ISAD10
ISAD11
ISAD12
ISAD13
ISAD14
ISAD15
15
10K
RSTDRV#
C
ROMCE#
ROMOE#
ROMWE#
B
VCC
WORD
RSTDRV#
47
12
ROMCE#
ROMOE#
ROMWE#
26
28
11
BYTE#
RESET#
CE#
OE#
WE#
VCC
GND
GND
37
C114
C115
0.1uF
0.1uF
C
46
27
29F800-55 TSOP48
1MByte ISA Flash Memory
Configured as 512Kx16bit (29F800T device in "word" mode)
Access at even ISA Memory addresses between 15MB and 16MB-1
Use
CSR 12h bit 3 to access 0f00000-0ffffffh as ISA Memory (instead of DRAM, if installed)
Flash chip A0 pin tied to ISA Address Bit 1; mulitply desired
Flash chip address by 2h to find correct ISA address for access
(ex: Flash chip address 555h is accessed at ISA address AAAh)
D
D
(C) Advanced Micro Devices, Inc.
(800) 222-9323
E
E
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
Title
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
ISA_MEM2.SCH
Date: Friday, December 04, 1998
1
2
3
4
Sheet
5
23
of
26
1
2
3
4
5
OPTIONAL Y2K RTC AND TEST INTERFACE PORT CONNECTOR
VCC
GA[2..9]
RTC Address/Data
Transferred on
FINALi LinkBus
A
R142
10K
RSTDRV#
Set RAMCLR Bit in CR 4B to enable RAM_Clear Function
VCC
U22
GA2
GA3
GA4
GA5
GA6
GA7
GA8
GA9
VCC
4
5
6
7
8
9
10
11
18
21
RTCKS#
VCC
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
VBAT
VBAUX
SQW
IRQ#
PWR#
R141
10K
24
A
20
VBAT
22
23
19
1
IRQ8J
RTCPWR#
Y6
KS#
RCLR#
X1
2
4
3
RTCX1
1
2
U15F
13
PWG
12
RTCCS#
13
14
15
17
74F04
CS#
ALE
WR#
RD#
X2
GND
GND
3
RTCX2
32.768KHz_SMD
12
16
12.5pF
Set CS Bit in CR 4B for
12.5pF Xtal
DS1685-5
RTCAS
U77B
4
ZIOWJ
B
6
RTCWR#
8
RTCRD#
B
5
74F32
U77C
ENRTC
(RTCSJ)
9
U77D
10
ZIORJ
12
11
74F32
13
74F32
1
4
3
ECLIPTEK ECPSM29T-32.768KTR
(COMPONENT SIDE VIEW)
OPTIONAL Y2K COMPLIANT RTC
C
2
C
T.I.P.
CONNECTOR
SD[0..15]
SA[0..19]
P31
SA0
SA2
SA4
SA6
SA8
D
SA10
SA12
SA14
SA16
SA18
SD0
SD2
SD4
SD6
TIP TEST IRQ
R122
0
AEN
IORJ
IOWJ
SWIRQ
IRQ14
PWG
RSTDRV
E
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59
SA1
SA3
SA5
SA7
SA9
EDGE OF BOARD
D
T.I.P. CONNECTOR
SA11
SA13
SA15
SA17
SA19
1
SD1
SD3
SD5
SD7
R119
0
ETHERNET IRQ
R120
0
PARALLEL PORT IRQ
R121
0
SERIAL PORT1 IRQ
R123
0
SERIAL PORT0 IRQ
2
IRQ15
IRQ12
ENETIRQ
PARIRQ
SERIRQ1
SERIRQ0
PLASTIC SHROUD
NOTCH ON TOP
IRQ11
IRQ10
IOCHRDYJ
VCC
(C) Advanced Micro Devices, Inc.
E
COND60
+
C113
10uF
16V
C-CASE
Title
59
60
Top View
1
2
(800) 222-9323
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
3
4
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
RTC_TIP.SCH
Date: Friday, December 04, 1998
Sheet
5
24
of
26
1
2
3
4
5
PC KEYBOARD AND MOUSE INTERFACE
VCC
R145
470
KEYBOARD INHIBIT FUNCTION
A
A
KBINHIBIT
R146
*2.2K
VCC
VCC
R171
4.7K
U78A
R172
4.7K
F2
FUSE--0.5A
1
B
2
L8
VCC
FB
3
R174
1K
C157
0.1uF
RSTDRV#
5
IORJ
XBUSCSJ
IOWJ
IORJ
XBUSCSJ
IOWJ
9
7
11
SA2
8
10
28
6
GA2
GA3
GA4
GA5
GA6
GA7
GA8
GA9
14
15
16
17
18
19
20
21
74F06
7
8
C159
47pF
C160
0.1uF
OSC
T0
T1
P10
P11
P12
P13
P14
P15
P16
P17
RESET#
RD#
CS#
WR#
P20
P21
P22
P23
P24
P25
P26
P27
EA
A0
PROG
SS#
D0
D1
D2
D3
D4
D5
D6
D7
NC1
NC2
NC3
NC4
NC5
GA[2..9]
M5042
SYNC
KKDATA
MMDATA
30
31
32
33
35
36
37
38
24
25
26
27
39
40
41
42
1
3
12
23
34
GND
GND
MOUSE_CON
AMP 750329-2
44
29
VCC
VCC
2
43
GND
4
RSTDRV#
GA[2..9]
M_CLK1
1
2
3
4
5
6
VCC
VCC
KBINHIBIT
MDATA
MCLK
IRQ1
IRQ12
KCLK
KDATA
C
VCC
R44
4.7K
R45
4.7K
IRQ1
IRQ12
F1
U78C
5
6
KKCLK
L2
FB
FUSE--0.5A
74F06
U78D
9
J1
8
KKDATA
KCLK1
KDATA1
FB
L1
1
2
3
4
5
KBVCC
74F06
13
C28
47pF
C14
47pF
6
7
C1
22
KBSS#
U79
ATCLK
SA2
MVCC
MMCLK
4
C158
47pF
KKCLK
MMCLK
C
1
2
3
4
5
6
R175
10K
C156
0.1uF
ATCLK
MDATA1
L9
U78B
VCC
R173
1K
B
J11
FB
MMDATA
74F06
0.1uF
KYBD CONN
AMP 212044-1
D
EDGE OF BOARD
(COMPONENT SIDE)
1
4
(COMPONENT SIDE)
7
6
2
5 3
7
5-Pin
Din
(PINS 6 AND
7 GROUND THE
METAL SHELL)
5
3
6-Pin
Mini-Din
1
2
6
8
4
U78E
11
E
KEYBOARD
CONNECTOR
3
5
D
EDGE OF BOARD
10
74F06
U78F
MOUSE
CONNECTOR
13
6
1
5
4
4
2
74F06
3
2
(C) Advanced Micro Devices, Inc.
1
(800) 222-9323
E
12
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
Title
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
KEYBOARD.SCH
Date: Friday, December 04, 1998
1
2
3
4
Sheet
5
25
of
26
1
2
3
4
5
SOCKET1
Am486 MICROPROCESSOR
(PIN #)-PIN DESIGNATION
(PIN SIDE VIEW)
(1)-D20
(18)-D19
(35)-D11
(52)-D9
(59)-GND
(65)-DP1
(71)-GND
(77)-GND
(83)-INC
(89)-GND
(95)-GND
(101)-GND
(107)-D2
(113)-D0
(119)-A31
(136)-A28
(153)-A27
(2)-D22
(19)-D21
(36)-D18
(53)-D13
(60)-VCC
(66)-D8
(72)-VCC
(78)-D3
(84)-D5
(90)-VCC
(96)-D6
(102)-VCC
(108)-D1
(114)-A29
(120)-GND
(137)-A25
(154)-A26
(3)-TCK
(20)-GND
(37)-CLK
(54)-D17
(61)-D10
(67)-D15
(73)-D12
(79)-DP2
(85)-D16
(91)-D14
(97)-D7
(103)-D4
(109)-DP0
(115)-A30
(121)-A17
(138)-VCC
(155)-A23
(4)-D23
(21)-GND
(38)-VCC
(55)-SKT1_NC
(122)-A19
(139)-GND
(156)-VOLDET
(5)-DP3
(22)-GND
(39)-VCC
(123)-A21
(140)-A18
(157)-A14
(6)-D24
(23)-D25
(40)-D27
(124)-A24
(141)-VCC
(158)-GND
(7)-GND
(24)-VCC
(41)-D26
(125)-A22
(142)-A15
(159)-A12
(8)-D29
(25)-D31
(42)-D28
(126)-A20
(143)-VCC
(160)-GND
(9)-GND
(26)-VCC
(43)-D30
(127)-A16
(144)-VCC
(161)-GND
(10)-INV
(27)-SMI#
(44)-SRESET
(128)-A13
(145)-VCC
(162)-GND
(11)-GND
(28)-VCC
(45)-UP#
(129)-A9
(146)-VCC
(163)-GND
(12)-HITM#
(29)-CACHE#
(46)-SMIACT#
(130)-A5
(147)-A11
(164)-GND
(13)-INC
(30)-WB/WT#
(47)-INC
(131)-A7
(148)-A8
(165)-A10
(14)-TDI
(31)-TMS
(48)-FERR#
(132)-A2
(149)-VCC
(166)-GND
(15)-IGNEE#
(32)-NMI
(49)-FLUSH#
(56)-A20M#
(62)-HOLD
(68)-KEN#
(74)-STPCLK#
(80)-BRDY#
(86)-BE2#
(92)-BE0#
(98)-PWT
(104)-D/C#
(110)-LOCK#
(116)-HLDA
(133)-BREQ
(150)-A3
(167)-A6
(16)-INTR
(33)-TDO
(50)-RESET
(57)-BS8#
(63)-VCC
(69)-RDY#
(75)-VCC
(81)-VCC
(87)-BE1#
(93)-VCC
(99)-VCC
(105)-VCC
(111)-M/IO#
(117)-VCC
(134)-PLOCK#
(151)-BLAST#
(168)-A4
(17)-AHOLD
(34)-EADS#
(51)-BS16#
(58)-BOFF#
(64)-GND
(70)-BE3#
(76)-GND
(82)-GND
(88)-PCD
(94)-GND
(100)-GND
(106)-GND
(112)-W/R#
(118)-GND
(135)-PCHK#
(152)-CLKMUL
(169)-ADS#
A
A
Am486 MICROPROCESSOR
PIN SIDE VIEW
B
B
C
C
SOCKET 1
1
153
153
1
D
D
169
17
17
COMPONENT SIDE VIEW
169
SOLDER SIDE VIEW
(C) Advanced Micro Devices, Inc.
(800) 222-9323
E
E
5204 E. Ben White Blvd.
Austin, TX 78741
AMD Proprietary/All Rights Reserved
Title
Size
Am486 MICROPROCESSOR
PCI CUSTOMER DEVELOPMENT PLATFORM
Document Number
Rev
2.1
CPU_PINOUT.SCH
Date: Friday, December 04, 1998
1
2
3
4
Sheet
5
26
of
26
Index
Numerics
25-MHz system clock,
33-MHz system clock,
B
2-35
2-36
A
A17, boot address, 2-6, 2-21, A-1
A18, boot address, 2-6, 2-21, A-1
Am486 microprocessor
block diagram, 2-10
overview, 2-8
Am486 microprocessor PCI customer
development platform
analyzer headers, 2-15
block diagram, 2-4
damage, avoiding, 1-2
default settings, A-1
documentation, xvii
features overview, xiii
installation requirements, 1-3
installing, 1-4
jumper summary, 2-6, A-1
layout diagram, 2-5
overview diagram, xi, 2-3
purpose, xi
restrictions, 2-7
troubleshooting, 1-8
Am486DX2-66 microprocessor, 2-35
Am486DX4-100 microprocessor, 2-36
Am486DX5-133 microprocessor, 2-36
analyzer headers, 2-15
bill of materials, B-2
BOM
See bill of materials.
boot ROM
limitations, 2-7
socket, 2-21
C
cable, diskette drive, 1-4
cache memory
and EIP Flash memory, 2-25
Level-2 cache, 2-20
chipset
description, 2-11
limitations, 2-7
CLKCTL signal, 2-14
CLKMUL signal, 2-35, 2-36
CLKPU2 signal, 2-35, 2-36
clock multiplier, 2-35, 2-36
CMOS, problems, 1-8
CMPSTJ signal, 2-35
CodeKit software, iii
configuration, PCI, 2-11
conventions, notational, xix
core logic chipset, 2-11
CPU power, adjusting, 2-32
CPUV1 signal, 2-6, A-1
CPUV2 signal, 2-6, A-1
Am486® Microprocessor PCI Customer Development Platform
Index-1
CPUV3 signal, 2-6, A-1
CPUVCC3, 2-6, A-1
F
D
debugging
monitor, 2-34
support, 2-15
defaults for jumpers and switches, A-1
development support, 2-15
diskette
connecting drive, 1-4
starting from, 1-6
DMA controller, 2-12
documentation
conventions, xix
description of, xvii
manual contents, xvii
reference material, xviii
support, iii
DRAM
limit without buffering, 2-7
speed limit with EIP, 2-7
using, 2-20
drive
See IDE hard drive or floppy disk drive.
DS1685 real-time clock, 2-27
G
GND connectors, 2-33
ground wire, 2-33
H
hard drive, IDE
See IDE hard drive.
headers, analyzer, 2-15
heat sink, CPU, 1-5, 1-6
hexadecimal display, 2-17
I
E
EEPROM, serial, 2-13, 2-14
ENRTC signal, 2-35
errors, 1-8
Ethernet controller, 2-13
execute-in-place (EIP) Flash memory,
EXTSMI signal, 2-34
Index-2
fan heat sink, 1-5, 1-6
Flash memory
in DRAM space, 2-25
ISA, 2-23
limitations, 2-7
floppy
disk drive, 2-30
starting from, 1-6
frequency multiplier, 2-35
2-25
IBCSTJ signal, 2-36
IDE hard drive
connection for, 2-31
starting from, 1-7
IDSEL signal, 2-11
in-circuit emulator compatibility,
infrared support
See IrDA interface.
2-17
Am486® Microprocessor PCI Customer Development Platform User’s Manual
installing
customer development platform, 1-4
requirements, 1-3
troubleshooting, 1-8
interrupt controller, chipset function, 2-12
interrupt signals
DMA channel limitations, 2-7
PCI, 2-19
TIP interface, 2-18
IrDA interface
Super I/O, 2-29
ISA bus, 2-28
J
J1 connector, 1-5
J2 connector, 1-5
J3 connector, 1-5
J4 connector, 2-30
J5 connector, 1-5, 2-31
J6 connector, 1-4, 2-30
J7 connector, 2-31
J8 connector, 2-29
J9 connector, 2-29
JP2 jumper, 2-6, A-1
JP29 test header, 2-17
JP3 jumper, 2-6, A-1
JP30 test header, 2-17
JP31 test header, 2-17
JP32 jumper, 2-6, 2-21,
JP33 jumper, 2-6, 2-21,
JP34 connector, 2-34
JP4 jumper, 2-6, A-1
JTAG port, 2-15
jumpers
defaults, A-1
summary, 2-6, A-1
K
KBINHIBIT signal, 2-36
keyboard
connecting, 1-5
connector, 2-31
controller enable, 2-36
error, 1-9
L
LEDs, problems with, 1-8
Level-2 cache memory, 2-20
limitations, 2-7
LinkBus, 2-12
literature support, iii
locations, part, 2-5
logic analyzer headers, 2-15
M
2-22, A-1
2-22, A-1
M1487 southbridge chip, 2-12
M1489 northbridge chip, 2-11
MACH device, 2-15
memory
boot ROM, 2-21
cache, 2-20
DRAM, 2-20
EIP Flash memory, 2-25
Flash memory, 2-23
map, 2-24
problems, 1-8
serial EEPROM, 2-13, 2-14
monitor, debugging, 2-34
mouse, 2-31
Am486® Microprocessor PCI Customer Development Platform
Index-3
N
NMI signal, 2-34
nonvolatile data, 2-14
northbridge chip, 2-11
P
P36 analyzer header, 2-16
P38 analyzer header, 2-16
P39 analyzer header, 2-16
P40 analyzer header, 2-16
P41 analyzer header, 2-16
P42 analyzer header, 2-16
P43 analyzer header, 2-16
P44 analyzer header, 2-16
P45 analyzer header, 2-16
P46 analyzer header, 2-16
P47 analyzer header, 2-16
parallel port, 2-30
part locations, 2-5
PCI bus
arbiter, 2-12
configuration addressing, 2-11
description, 2-19
interrupt signals, 2-19
limitations, 2-7
peripherals
needed to use board, 1-3
PGNTJ0 signal, 2-17
PGNTJ1 signal, 2-17
PGNTJ2 signal, 2-17
pin-grid-array (PGA) socket, 2-17
port 680h display, 2-17
port 80h display, 1-6, 1-7, 2-17
ports
See serial ports or parallel port.
POST (Power-On Self-Test codes), 1-6, 1-7
power management
not implemented, 2-7, 2-14
Index-4
power supply
connecting, 1-5
using, 2-33
PREQJ0 signal, 2-17
PREQJ1 signal, 2-17
PREQJ2 signal, 2-17
programmable interval timer,
PWG signal, 2-34
2-12
R
R11 resistor, 2-35
R145 resistor, 2-36
R146 resistor, 2-36
R148 resistor, 2-36
R170 resistor, 2-36
R176 resistor, 2-36
R58 resistor, 2-35
R59 resistor, 2-35
R70 resistor, 2-35
R71 resistor, 2-35
R93 resistor, 2-35
real-time clock (RTC), 2-27
RESET signal, 2-34
resistor options, 2-35
ROM
boot, 2-21
EIP Flash memory, 2-25
ISA Flash memory, 2-23
S
schematics, B-10
serial EEPROM, 2-13, 2-14
serial ports
connector, 2-29
Super I/O, 2-29
SL1 ISA slot, 1-5, 2-28
SL2 ISA slot, 1-5, 2-28
SLT1 PCI slot, 1-5
SLT2 PCI slot, 1-5
Am486® Microprocessor PCI Customer Development Platform User’s Manual
SMI signal, 2-34
southbridge chip, 2-12
super I/O
IrDA interface, 2-29
overview, 2-28
serial ports, 2-29
support, iii
SW1 switch, 2-34
SW2 switch, 2-34
SW3 switch, 2-34
switch summary, 2-34
system clock speed, 2-35,
W
WWW support,
iii
Y
year-2000 (Y2K),
2-36
2-27
Z
zero-insertion-force (ZIF) socket,
T
2-17
technical support, iii
test interface port (TIP), 2-18
test points, PCI, 2-17
third-party support, iii
timer, chipset function, 2-12
TIP board, 2-18
TURBO signal, 2-35
U
U25 ZIF socket, 2-8
U44 IrDA module, 2-29
U54 serial EEPROM, 2-13
U81 serial EEPROM, 2-14
V
VGA
cable, connecting, 1-5
card, connecting, 1-5
monitor problems, 1-8
voltage limitations, 2-7
Am486® Microprocessor PCI Customer Development Platform
Index-5
Index-6
Am486® Microprocessor PCI Customer Development Platform User’s Manual