Altera IP Compiler for PCI Express User Manual

Page 162

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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)

Table 6-4.

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.

PCI Express Capability Structure Version 1.0a and 1.1 (Note 1), Rev2 Spec: PCI Express Capabilities Register

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

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