| 摘要 |
A memory access control device and method is provided with a cache memory having a plurality of cache areas, each for storing image data of one macroblock, and a cache table having a plurality of table areas, corresponding to the plurality of cache areas, each for storing a scheduled access counter that counts the number of scheduled accesses to a corresponding cache area and an in-frame address of image data of one macroblock stored in the corresponding cache area. A data request processor receives a data request including specification of an in-frame occupation region of the requested image data from the image processor, determines target image data of at least one macroblock required to process requested image data based on the in-frame occupation region of the requested image data, acquires the target image data from the cache memory, processes the image data requested by the data request using the acquired image data, and outputs the processed image data to the image processor.
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