82443ZX Datasheet, PDF (70/116 Pages) Intel Corporation – Intel® 440ZX AGPset: Host Bridge/Controller

Register Description
3.4.1
3.4.2
VID1—Vendor Identification Register (Device 1)
Address Offset:
Default Value:
Attribute:
Size:
00–01h
8086h
Read Only
16 bits
The VID Register contains the vendor identification number. This 16-bit register combined with
the Device Identification Register uniquely identify any PCI device. Writes to this register have no
effect.
Bit
Description
15:0 Vendor Identification Number. This is a 16-bit value assigned to Intel. Intel VID = 8086h.
DID1—Device Identification Register (Device 1)
Address Offset:
Default Value:
Attribute:
Size:
02–03h
7191h
Read Only
16 bits
This 16-bit register combined with the Vendor Identification register uniquely identifies any PCI
device. Writes to this register have no effect.
Bit
Description
Device Identification Number. This is a 16 bit value assigned to the 82443ZX device #1.
15:0
82443ZX device #1 DID =7191h.
3-46
82443ZX Host Bridge Datasheet