Patent ID: 6457068
Filing Date: 2002-09-24
Classification: G06F

Abstract:
A graphics expansion bridge comprising:a first interface unit to be coupled to a system memory and I/O controller through one or more I/O ports, the first interface unit enabling data transfers over the one or more I/O ports to or from a main memory of a computer system; an Accelerated Graphics Port (AGP) interface unit that provides bus control signals and addresses to enable data transfers over an AGP bus to or from a peripheral device; and an address translation unit coupled to the first interface unit and the AGP interface unit, the address translation unit to translate graphics addresses associated with inbound AGP transactions received on the AGP bus by accessing static random access memory (SRAM) containing a graphics address relocation table (GART) in its entirety, the GART including physical addresses of pages in a main memory of the computer system.