Datasheet

Register Description
R
60 Datasheet
Register Name
Register
Symbol
Register
Start
Register
End
Default Value Access
AGP Command AGPCMD A8 AB 0000 0000h RO, R/W
AGP Control AGPCTRL B0 B1 0000h RO, R/W
AGP Functional Test AFT B2 B3 E9F0h R/W, R/WC
Aperture Translation Table Base ATTBASE B8 BB 00000000h RO, R/W
AGP Interface Multi Transaction
Timer
AMTT BC BC 00h R/W
Low Priority Transaction Timer LPTT BD BD 00h R/W
Host Error Control/Status/Obs HEM F0 F3 00000000h RO, R/W
4.8.1 VID – Vendor Identification Register
Address Offset: 00-01h
Default Value: 8086h
Access: Read Only
Size: 16 bits
The VID Register contains the vendor identification number. This 16-bit register, combined with
the Device Identification Register, uniquely identifies any PCI device. Writes to this register have
no effect.
Bit Description
15:0 Vendor Identification (VID): This register field contains the PCI standard identification for Intel.
4.8.2 DID – Device Identification Register
Address Offset: 02-03h
Default Value: 3580h
Access: Read Only
Size: 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
15:0 Device Identification Number (DID): This is a 16-bit value assigned to the GMCH Host-Hub interface
bridge, Device #0.