Vid-Vendor Identification Register (Function 1); Did-Device Identification Register (Function 1); Pcicmd-Pci Command Register (Function 1) - Intel 460GX Software Developer’s Manual

IDE Configuration
12.2.1 VID–Vendor Identification Register (Function 1)
Address Offset:
Default Value:
Attribute:
The VID Register contains the vendor identification number. This register, along with the Device
Identification Register, uniquely identifies any PCI device. Writes to this register have no effect.
Bit
15:0
12.2.2 DID–Device Identification Register (Function 1)
Address Offset:
Default Value:
Attribute:
The DID Register contains the device identification number. This register, along with the VID
Register, defines the IFB Function. Writes to this register have no effect.
Bit
15:0
12.2.3 PCICMD–PCI Command Register (Function 1)
Address Offset:
Default Value:
Attribute:
The PCICMD Register controls access to the I/O space registers.
Bit
15:10
9
8
7
6
5
4
3
2
1
0
12-2
00–01h
8086h
Read only
Vendor Identification Number. This is a 16-bit value assigned to Intel
02–03h
7601h
Read only
Device Identification Number. This is a 16-bit value assigned to the IFB IDE Controller Function.
04–05h
0000h
Read/Write
Reserved.
Fast Back to Back Enable (FBE). This bit is hardwired to 0.
SERR# Enable. This bit is hardwired to 0.
Wait Cycle Control. This bit is hardwired to 0.
Parity Error Response. This bit is hardwired to 0.
VGA Palette Snoop. This bit is hardwired to 0.
Postable Memory Write and Invalidate Enable. This bit is hardwired to 0.
Special Cycle Enable. This bit is hardwired to 0.
Bus Master Function Enable (BME). 1=Enable. 0=Disable.
Memory Space Enable. This bit is hardwired to 0.
I/O Space Enable (IOSE). This bit controls access to the I/O space registers. When IOSE=1,
access to the Legacy IDE ports (both primary and secondary) and the PCI Bus Master IDE I/O
Registers is enabled. The Base Address Register for the PCI Bus Master IDE I/O Registers should
be programmed before this bit is set to 1.
Description
Description
Description
Intel® 460GX Chipset Software Developer's Manual