December 2013 Altera Corporation Cyclone V Hard IP for PCI Express
User Guide
8. Register Descriptions
This section describes registers that you can access the PCI Express Configuration
Space. It includes the following sections:
■ Configuration Space Register Content
■ Correspondence between Configuration Space Registers and the PCIe Spec 2.1
Configuration Space Register Content
Table 8–1 shows the PCI Compatible Configuration Space address map. The following
tables provide more details.
1 To facilitate finding additional information about these PCI and PCI Express registers,
the following tables provide the name of the corresponding section in the PCI Express
Base Specification Revision 2.1.
f For comprehensive information about these registers, refer to Chapter 7 of the PCI
Express Base Specification Revision 2.1.
Table 8–1. Common Configuration Space Header
Byte Offset Register Set
0x000:0x03C
PCI Type 0 Configuration Space Header (Refer to Table 8–2 for details) or PCI Type 1 Configuration
Space Header (Refer to Table 8–3 for details.)
0x040:0x04C Reserved.
0x050:0x05C MSI Capability Structure (Refer to Table 8–4 for details.)
0x060:0x064 Reserved
0x068:0x070 MSI-X Capability Structure (Refer to Table 8–5 for details.)
0x071:0x074 Reserved
0x078:0x07C Power Management Capability Structure (Refer to Table 8–6 for details.)
0x080:0x0BC PCI Express Capability Structure (Refer to Table 8–8 for details.)
0x0C0:0x0C4 Reserved
0x0C8-0x7FC Reserved
0x800:0x834 Advanced error reporting (AER) (optional)
0x838:0xFFF Reserved
0x100:0x16C
Virtual Channel Capability Structure for Function 0, Vendor Specific Extended Capability for Functions
1–7
December 2013
UG-01110-1.5
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