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Intel® 460GX Chipset Software Developer’s Manual 11-1
LPC/FWH Interface Configuration 11
The IFB PCI Function 0 contains a LPC/FWH interface, interrupt controller and counter / timers,
including the real time clock. The register set associated with this Functionality and associated
logic is shown below with actual register descriptions given in this section.
11.1 PCI to LPC/FWH Interface Configuration Space
Registers (PCI Function 0)
11.1.1 VID–Vendor Identification Register (Function 0)
Address Offset: 00–01h
Default Value: 8086h
Attribute: Read Only
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.
11.1.2 DID–Device Identification Register (Function 0)
Address Offset: 02–03h
Default Value: 7600h
Attribute: Read Only
The DID Register contains the device identification number. This register, along with the VID
Register, defines the IFB. Writes to this register have no effect.
Bit Description
15:0 Vendor Identification Number. This is a 16-bit value assigned to Intel.
Bit Description
15:0 Device Identification Number. This is a 16-bit value assigned to the IFB.