307013-003 Datasheet, PDF (251/848 Pages) Intel Corporation – Intel I/O Controller Hub 7

Functional Description
5.27
Feature Capability Mechanism
A new set of registers have been added into ICH7 LPC Interface (Device 31, Function 0,
offset E0h - EBh) that allows the system software or BIOS to easily determine the
features supported by ICH7. These registers can be accessed through LPC PCI
configuration space; thus allowing for convenient single point access mechanism for
chipset feature detection.
This set of registers consists of:
Capability ID (FDCAP)
Capability Length (FDLEN)
Capability Version and Vendor-Specific Capability ID (FDVER)
Feature Vector (FVECT)
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Intel ^® ICH7 Family Datasheet
251