Patent ID: 6173367
Filing Date: 2001-01-09
Classification: G06F

Abstract:
A method of accessing a video data cache, the method comprising:receiving a mode indicator, wherein the mode indicator indicates one of a first and second mode of cache operation;during the first mode of cache operation performing the following steps:partitioning a first and second portion of the video cache to be accessible to both a first client and a second client;receiving a first memory access request from the first client and receiving a second memory access request from the second client;accessing a first word of the first portion of the video cache based on the first memory access request; andsimultaneously accessing a second word of the first portion of the video cache based on the second memory access request; andduring the second mode of cache operation performing the following steps:partitioning the first portion of the video cache to be accessible to a third client and inaccessible to a fourth client;partitioning the second portion of the video cache to be accessible to the fourth client and inaccessible to the third client;receiving a third memory access request from the third client and simultaneously receiving a fourth memory access request from the fourth client;accessing the first portion of the video cache based on the third memory access request; andsimultaneously accessing the second portion of the video cache based on the fourth memory access request.