Download Arria V Avalon-MM Interface for PCIe Solutions User Guide

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5-6
UG-01105_avmm
2014.12.15
Type 1 Configuration Space Registers
Type 1 Configuration Space Registers
Figure 5-2: Type 1 Configuration Space Registers (Root Ports)
31
24 23
Device ID
Status
16 15
87
Vendor ID
Command
0
0x0000
0x004
Class Code
Revision ID
0x008
BIST
Header Type
Primary Latency Timer
Cache Line Size
0x00C
BAR Registers
0x010
BAR Registers
0x014
Primary Bus Number
0x018 Secondary Latency Timer Subordinate Bus Number Secondary Bus Number
Secondary Status
I/O Limit
I/O Base
0x01C
0x020
Memory Limit
Memory Base
Prefetchable Memory Limit
Prefetchable Memory Base
0x024
0x028
Prefetchable Base Upper 32 Bits
0x02C
Prefetchable Limit Upper 32 Bits
0x030
I/O Limit Upper 16 Bits
I/O Base Upper 16 Bits
0x034
Reserved
Capabilities Pointer
0x038
Expansion ROM Base Address
Bridge Control
Interrupt Pin
Interrupt Line
0x03C
PCI Express Capability Structures
Figure 5-3: MSI Capability Structure
31
0x050
0x054
0x058
0x05C
Altera Corporation
24 23
16 15
Message Control
Configuration MSI Control Status
Next Cap Ptr
Register Field Descriptions
Message Address
Message Upper Address
Reserved
87
0
Capability ID
Message Data
Registers
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