Pci Standard Registers; Vid - Vendor Identification Register; Did - Device Identification Register - Intel I7-900 DESKTOP PROCESSOR - DATASHEET VOLUME 2 Datasheet

2.5

PCI Standard Registers

These registers appear in every function for every device.
Note: Reserved bit locations are not shown in the following register tables.
2.5.1

VID - Vendor Identification Register

The VID Register contains the vendor identification number. This 16-bit register,
combined with the Device Identification Register uniquely identifies the manufacturer
of the function within the processor. Writes to this register have no effect.
Device:
Function:
Offset:
Device:
Function:
Offset:
Device:
Function:
Offset:
Device:
Function:
Offset:
Bit
15:0
2.5.2

DID - Device Identification Register

This 16-bit register combined with the Vendor Identification register uniquely identifies
the Function within the processor. Writes to this register have no effect. See
for the DID of each processor function.
Device:
Function:
Offset:
Device:
Function:
Offset:
Device:
Function:
Offset:
Device:
Function:
Offset:
Bit
15:0
36
0
0-1
00h
2
0-1, 4-5
00h
3
0-2, 4
00h
4-6
0-3
00h
Reset
Type
Value
Vendor Identification Number
RO 8086h
The value assigned to Intel.
0
0-1
02h
2
0-1, 4-5
02h
3
0-2, 4
02h
4-6
0-3
02h
Reset
Type
Value
*See Device Identification Number
RO
Identifies each function of the processor.
Table 2-1
Register Description
Description
Description
Table 2-1
Datasheet