One of the methods which achieve a high-speed image data access required in designing image memory system is to set up cache memory, hereinafter referred to as image cache memory, between image memory and image signal processor. This paper describes it's control method and proposes the new method that forecasts the pixcel image signal processor needs and transfers previously it to image cache memory. In finaly, estimating it's performance, we could attain 4 times faster than system without image cache memory at 100 ns machine cycle time of image signal processor.
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