Specification Sheet

PCI Express* Controller (x16) Registers
358 Datasheet, Volume 2 of 2
12 PCI Express* Controller (x16)
Registers
Table 12-1. Summary of Bus: 0, Device: 1, Function: 0 (CFG)
Offset
Size
(Bytes)
Register Name (Register Symbol)
Default
Value
0–1h 2 Vendor Identification (VID)—Offset 0h 8086h
2–3h 2 Device Identification (DID)—Offset 2h 5901h
4–5h 2 PCI Command (PCICMD)—Offset 4h 0h
6–7h 2 PCI Status (PCISTS)—Offset 6h 10h
8–8h 1 Revision Identification (RID)—Offset 8h 0h
9–Bh 3 Class Code (CC)—Offset 9h 60400h
C–Ch 1 Cache Line Size (CL)—Offset Ch 0h
E–Eh 1 Header Type (HDR)—Offset Eh 81h
18–18h 1 Primary Bus Number (PBUSN)—Offset 18h 0h
19–19h 1 Secondary Bus Number (SBUSN)—Offset 19h 0h
1A–1Ah 1 Subordinate Bus Number (SUBUSN)—Offset 1Ah 0h
1C–1Ch 1 I/O Base Address (IOBASE)—Offset 1Ch F0h
1D–1Dh 1 I/O Limit Address (IOLIMIT)—Offset 1Dh 0h
1E–1Fh 2 Secondary Status (SSTS)—Offset 1Eh 0h
20–21h 2 Memory Base Address (MBASE)—Offset 20h FFF0h
22–23h 2 Memory Limit Address (MLIMIT)—Offset 22h 0h
24–25h 2 Prefetchable Memory Base Address (PMBASE)—Offset 24h FFF1h
26–27h 2 Prefetchable Memory Limit Address (PMLIMIT)—Offset 26h 1h
28–2Bh 4 Prefetchable Memory Base Address Upper (PMBASEU)—Offset 28h 0h
2C–2Fh 4 Prefetchable Memory Limit Address Upper (PMLIMITU)—Offset 2Ch 0h
34–34h 1 Capabilities Pointer (CAPPTR)—Offset 34h 88h
3C–3Ch 1 Interrupt Line (INTRLINE)—Offset 3Ch 0h
3D–3Dh 1 Interrupt Pin (INTRPIN)—Offset 3Dh 1h
3E–3Fh 2 Bridge Control (BCTRL)—Offset 3Eh 0h
80–83h 4 Power Management Capabilities (PM)—Offset 80h C8039001h
84–87h 4 Power Management Control/Status (PM)—Offset 84h 8h
88–8Bh 4 Subsystem ID and Vendor ID Capabilities (SS)—Offset 88h 800Dh
8C–8Fh 4 Subsystem ID and Subsystem Vendor ID (SS)—Offset 8Ch 8086h
90–91h 2 Message Signaled Interrupts Capability ID (MSI)—Offset 90h A005h
92–93h 2 Message Control (MC)—Offset 92h 0h
94–97h 4 Message Address (MA)—Offset 94h 0h
98–99h 2 Message Data (MD)—Offset 98h
0h
A0–A1h 2 PCI Express-G Capability List (PEG)—Offset A0h 10h
A2–A3h 2 PCI Express-G Capabilities (PEG)—Offset A2h 142h