Download CPU110-20

Hardware Specifications
3.3 Platform Controller Hub
3.3.1 PCI Express
One PCH x4 PCIe port is attached to an Intel® 82580EB Quad Gigabit Ethernet Controller to support the
1000Base-T or -BX backplane control plane. An additional x1 PCIe port is connected to a Tsi382 PCIe to
PCI Bridge to support a legacy 32-bit 66MHz PCI bus for the PMC interface per IEEE1386.1.
3.3.2 PCH Backplane I/O
A simplified block diagram of the PCH is shown in Figure 3. One 6G SATA port, one 3G SATA port, one
USB 3.0, and one USB 2.0 port are connected to the backplane along with DVI/HDMI and VGA graphics
interfaces. The HDMI interface is passed through an HDMI level translator (U39) and the VGA interface is
passed through a VGA Driver/EMI Filter (U35). Additional backplane I/O from the PCH include three
SMBus interfaces, two connecting to VPX P0 per VITA 46.0 and one connected to VPX P2 to support rear
transition module expansion. The PCH High Definition Audio Interface is connected to user I/O pins on
VPX P1. The PCH LPC bus is connected to a Trusted Platform Module (U67), a Super I/O device (U20),
and XMC connector J16.
TO/FROM
CPU
DMI
INTERFACE
TO/FROM
CPU
FDI
INTERFACE
TO/FROM
TSI382
TO/FROM
82580
6G SATA
SATA
Controller
USB 3.0
USB
Controller
(x1) PCIe
INTERFACE
(4) PCIe
INTERFACE
TO/FROM
VPX P0
TO/FROM
BOARD
DEVICES
SMBUS
INTERFACE
TO BOARD
DEVICES
CLOCK
GENERATOR
3G SATA
QM77
PCH
USB 2.0
USB 2.0
Front Panel USB
Digital Video
Interface
HDMI
Level
Translator
Analog Video
Interface
VGA Driver
& EMI Filter
VPX
P2
High Definition
Audio
Controller
VPX
P1
LPC
Controller
XMC
J16
SUPER
I/O
TPM
Figure 3: CPU 110-20 PCH Backplane I/O
The digital video interface of the PCH is connected to a Pericom PI3VDP411LS HDMI Level Shifter. This
device converts the AC coupled display port signals into HDMI Rev. 1.3 compliant signals. The
PI3VDP411LS support signal rates up to 2.5Gbps providing 12-bits of color depth per channel, as
indicated in HDMI Rev. 1.3.
The analog VGA interface from the PCH is connected to a Maxim MAX9511 RGBHV Driver with
integrated EMI suppression. The MAX9511 provides a complete VGA interface between a graphics
controller, backplane, and CPU110-20 RTM.
The MAX9511 has output drivers with variable
electromagnetic interference (EMI) suppression for graphics video and sync (RGBHV) signals and
includes external load-detection circuitry.
21
CPU110-20 User Manual