PCIe Configuration Space Registers for x4 Controllers

Hard IP Configuration Space Register	Address Offset	Attributes	Description
TYPE0_HDR	0x0	Address Range: 0x40 Endian: little	PF PCI-Compatible Configuration Space Header Type0
PM_CAP	0x40	Address Range: 0x8 Endian: little	PF PCI Power Management Capability Structure
MSI_CAP	0x50	Address Range: 0x18 Endian: little	PF MSI Capability Structure
PCIE_CAP	0x70	Address Range: 0x3c Endian: little	PF PCI Express Capability Structure
MSIX_CAP	0xb0	Address Range: 0xd Endian: little	PF MSI-X Capability Structure
AER_CAP	0x100	Address Range: 0x48 Endian: little	PF Advanced Error Reporting Capability Structure
VC_CAP	0x148	Address Range: 0x1c Endian: little	Virtual Channel Capability Structure
SN_CAP	0x164	Address Range: 0xc Endian: little	Device Serial Number Capability Structure
ARI_CAP	0x174	Address Range: 0x8 Endian: little	PF ARI Capability Structure
SPCIE_CAP	0x184	Address Range: 0x20 Endian: little	Secondary PCI Express Capability Structure
PL16G_CAP	0x1a4	Address Range: 0x24 Endian: little	Physical Layer 16.0 GT/s Extended Capability Structure
MARGIN_CAP	0x1c8	Address Range: 0x18 Endian: little	Margining Extended Capability Structure
PL32G_CAP	0x1e0	Address Range: 0x24 Endian: little	Physical Layer 32.0 GT/s Extended Capability Structure
TPH_CAP	0x204	Address Range: 0x8c Endian: little	PF TLP Processing Hints Capability Structure
ATS_CAP	0x290	Address Range: 0x8 Endian: little	PF Address Translation Services Capability Structure
ACS_CAP	0x2a0	Address Range: 0xc Endian: little	PF ACS Capability Structure
PRS_EXT_CAP	0x2ac	Address Range: 0x10 Endian: little	PF PRS Capability Structure
LTR_CAP	0x2bc	Address Range: 0x8 Endian: little	PF Latency Tolerance Reporting Capability Structure
PASID_CAP	0x2c4	Address Range: 0x8 Endian: little	PF PASID Capability Structure
DLINK_CAP	0x404	Address Range: 0xc Endian: little	PF DLINK Capability Structure