Intel B940 Datasheet Page 115

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Datasheet, Volume 2 115
Processor Configuration Registers
2.10 PCI Device 1 Registers
Table 2-7. PCI Express* Device 1 Register Address Map
Address
Offset
Register
Symbol
Register Name
Reset
Value
Access
0–1h VID1 Vendor Identification 8086h RO
2–3h DID1 Device Identification 0041h RO
4–5h PCICMD1 PCI Command 0000h RO, RW
6–7h PCISTS1 PCI Status 0010h RO, RW1C
8h RID1 Revision Identification 12h RO
9–Bh CC1 Class Code 060400h RO
Ch CL1 Cache Line Size 00h RW
Eh HDR1 Header Type 01h RO
18h PBUSN1 Primary Bus Number 00h RO
19h SBUSN1 Secondary Bus Number 00h RW
1Ah SUBUSN1 Subordinate Bus Number 00h RW
1Ch IOBASE1 I/O Base Address F0h RW, RO
1Dh IOLIMIT1 I/O Limit Address 00h RW, RO
1E–1Fh SSTS1 Secondary Status 0000h RW1C, RO
20–21h MBASE1 Memory Base Address FFF0h RW, RO
22–23h MLIMIT1 Memory Limit Address 0000h RW, RO
24–25h PMBASE1 Prefetchable Memory Base Address FFF1h RW, RO
26–27h PMLIMIT1 Prefetchable Memory Limit Address 0001h RW, RO
28–2Bh PMBASEU1 Prefetchable Memory Base Address Upper 0000_0000h RW
2C–2Fh PMLIMITU1 Prefetchable Memory Limit Address Upper 0000_0000h RW
34h CAPPTR1 Capabilities Pointer 88h RO
3Ch INTRLINE1 Interrupt Line 00h RW
3Dh INTRPIN1 Interrupt Pin 01h RO
3E–3Fh BCTRL1 Bridge Control 0000h RO, RW
40–7Eh RSVD Reserved 0h RO
7Fh CAPL Capabilities List Control 02h RO, RW
80–83h PM_CAPID1 Power Management Capabilities C8039001h RO
84–87h PM_CS1
Power Management Control/Status
0000_0008h
RO, RW-S,
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
92–93h MC Message Control 0000h RO, RW
94–97h MA Message Address 0000_0000h RW, RO
98–99h MD Message Data 0000h RW
A0–A1h PEG_CAPL PCI Express-G Capability List 0010h RO
A2–A3h PEG_CAP PCI Express-G Capabilities 0142h RO, RW-O
A4–A7h DCAP Device Capabilities 00008000h RO
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