Datasheet

Processor Configuration Registers

86 Datasheet, Volume 2

2.6 PCI Device 1 Function 0–2 Configuration Space

Registers

Table 2-9. PCI Device 1 Function 0–2 Configuration Space Register Address Map (Sheet 1

of 2)

Address

Offset

Symbol

0–1h VID Vendor Identification 8086h RO

2–3h DID Device Identification 0151h RO-FW

4–5h PCICMD PCI Command 0000h RO, RW

6–7h PCISTS PCI Status

0010h

RO, RW1C,

RO-V

8h RID Revision Identification 00h RO-FW

9–Bh CC Class Code 060400h RO

Ch CL Cache Line Size 00h RW

Dh RSVD Reserved 0h RO

Eh HDR Header Type 81h RO

F–17h RSVD Reserved 0h RO

18h PBUSN Primary Bus Number 00h RO

19h SBUSN Secondary Bus Number 00h RW

1Ah SUBUSN Subordinate Bus Number 00h RW

1Bh RSVD Reserved 0h RO

1Ch IOBASE I/O Base Address F0h RW

1Dh IOLIMIT I/O Limit Address 00h RW

1E–1Fh SSTS Secondary Status 0000h RW1C, RO

20–21h MBASE Memory Base Address FFF0h RW

22–23h MLIMIT Memory Limit Address 0000h RW

24–25h PMBASE Prefetchable Memory Base Address FFF1h RO, RW

26–27h PMLIMIT Prefetchable Memory Limit Address 0001h RW, RO

28–2Bh PMBASEU Prefetchable Memory Base Address Upper 00000000h RW

2C–2Fh PMLIMITU Prefetchable Memory Limit Address Upper 00000000h RW

30–33h RSVD Reserved 0h RO

34h CAPPTR Capabilities Pointer 88h RO

35–3Bh RSVD Reserved 0h RO

3Ch INTRLINE Interrupt Line 00h RW

3Dh INTRPIN Interrupt Pin 01h RW-O, RO

3E–3Fh BCTRL Bridge Control 0000h RO, RW

40–7Fh RSVD Reserved 0h RO

80–83h PM_CAPID Power Management Capabilities C8039001h RO, RO-V

84–87h PM_CS Power Management Control/Status 00000008h RO, RW

88–8Bh SS_CAPID Subsystem ID and Vendor ID Capabilities 0000800Dh RO

8C–8Fh SS Subsystem ID and Subsystem Vendor ID 00008086h RW-O

90–91h MSI_CAPID Message Signaled Interrupts Capability ID A005h RO