Altera IP Compiler for PCI Express User Manual
Page 162

6–14
Chapter 6: Register Descriptions
Comprehensive Correspondence between Config Space Registers and PCIe Spec Rev 2.0
IP Compiler for PCI Express User Guide
August 2014
Altera Corporation
0x010
Base Address 0
Base Address Registers (Offset 10h/14h)
0x014
Base Address 1
Base Address Registers (Offset 10h/14h)
0x018
Secondary Latency Timer Subordinate Bus
Number Secondary Bus Number Primary Bus
Number
Secondary Latency Timer (Offset 1Bh)/Type 1
Configuration Space Header/ /Primary Bus Number
(Offset 18h)
0x01C
Secondary Status I/O Limit I/O Base
Secondary Status Register (Offset 1Eh) / Type 1
Configuration Space Header
0x020
Memory Limit Memory Base
Type 1 Configuration Space Header
0x024
Prefetchable Memory Limit Prefetchable Memory
Base
Prefetchable Memory Base/Limit (Offset 24h)
0x028
Prefetchable Base Upper 32 Bits
Type 1 Configuration Space Header
0x02C
Prefetchable Limit Upper 32 Bits
Type 1 Configuration Space Header
0x030
I/O Limit Upper 16 Bits I/O Base Upper 16 Bits
Type 1 Configuration Space Header
0x034
Reserved Capabilities PTR
Type 1 Configuration Space Header
0x038
Expansion ROM Base Address
Type 1 Configuration Space Header
0x03C
Bridge Control Interrupt Pin Interrupt Line
Bridge Control Register (Offset 3Eh)
MSI Capability Structure, Rev2 Spec: MSI and MSI-X Capability Structures
0x050
Message Control Next Cap Ptr Capability ID
MSI and MSI-X Capability Structures
0x054
Message Address
MSI and MSI-X Capability Structures
0x058
Message Upper Address
MSI and MSI-X Capability Structures
0x05C
Reserved Message Data
MSI and MSI-X Capability Structures
Table 6-5.
MSI-X Capability Structure, Rev2 Spec: MSI and MSI-X Capability Structures
0x68
Message Control Next Cap Ptr Capability ID
MSI and MSI-X Capability Structures
0x6C
MSI-X Table Offset BIR
MSI and MSI-X Capability Structures
0x70
Pending Bit Array (PBA) Offset BIR
MSI and MSI-X Capability Structures
Table 6-6.
Power Management Capability Structure, Rev2 Spec: Power Management Capability Structure
0x078
Capabilities Register Next Cap PTR Cap ID
PCI Power Management Capability Structure
0x07C
Data PM Control/Status Bridge Extensions Power
Management Status & Control
PCI Power Management Capability Structure
Table 6-7.
and PCI Express Capability List Register
0x080
PCI Express Capabilities Register Next Cap PTR
Capability ID
PCI Express Capabilities Register / PCI Express
Capability List Register
0x084
Device capabilities
Device Capabilities Register
0x088
Device Status Device Control
Device Status Register/Device Control Register
0x08C
Link capabilities
Link Capabilities Register
0x090
Link Status Link Control
Link Status Register/Link Control Register
0x094
Slot capabilities
Slot Capabilities Register
0x098
Slot Status Slot Control
Slot Status Register/ Slot Control Register
0x09C
Reserved Root Control
Root Control Register
Table 6–23. Correspondence Configuration Space Registers and PCIe Base Specification Rev. 2.0 Description (Part 3
of 5)
Byte Address
Config Reg Offset 31:24 23:16 15:8 7:0
Corresponding Section in PCIe Specification