Hub Datasheet

46 Intel
®
E7505 Chipset MCH Datasheet
Register Description
3.5.1 VID—Vendor Identification Register (D0:F0)
Address Offset: 00–01h
Default Value: 8086h
Attribute: RO
Size: 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.
3.5.2 DID—Device Identification Register (D0:F0)
Address Offset: 02–03h
Default Value: 2550h
Attribute: RO
Size: 16 bits
This 16-bit register combined with the Vendor Identification register uniquely identifies any PCI
device.
A4–A7h AGPSTAT AGP Status Register
see register
description
RO
A8–ABh AGPCMD AGP Command Register 0000 0000h RW, RO
B0–B3h AGPCTRL AGP Control Register 0000 0000h RW, RO
B4h APSIZE Aperture Size 00h RW, RO
B8–BBh ATTBASE Aperture Translation Table 0000 0000h RW, RO
BCh AMTT AGP MTT Control Register 00h RW, RO
BDh LPTT AGP Low Priority Transaction Timer Reg 00h RW, RO
C4–C5h TOLM Top of Low Memory Register 0800h RW, RO
C6–C7h REMAPBASE Remap Base Address Register 03FFh RW, RO
C8–C9h REMAPLIMIT Remap Limit Address Register 0000h RW, RO
DE–DFh SKPD Scratch Pad Data 0000h RW
E0–E1h DVNP Device Not Present 1D1Fh RW, RO
Table 3-2. Chipset Host Controller Register Address Map (D0:F0)
Address
Offset
Mnemonic Register Name
Default
Value
Access
Bits
Default,
Access
Description
15:0
8086h,
RO
Vendor Identification Number. This register field contains the PCI standard
identification for Intel, 8086h.
Bits
Default,
Access
Description
15:0
2550h,
RO
Device Identification Number (DID). This is a 16-bit value assigned to the MCH Host
Controller Bridge Function 0.