| 摘要 |
PROBLEM TO BE SOLVED: To effectively use a cache memory mounted in a CPU. SOLUTION: A selector 31 outputs signals to a Y-distributor 32 for inputted digital video Y-signals and the distributor 32 distributes the Y-signals of 8 bits to a Y-FIFO 35. When the Y-FIFO 35 stores Y-outputs, the selector 38 selects outputs to be transferred among the Y-outputs putted out from the Y-FIFO 35 and transfer the selected outputs to a DMAC 40, and the DMAC 40, if accessible to a main bus 20, outputs addresses for designating areas on a DRAM 14 to the main bus 20, thus writing the Y-outputs transferred from the selector 38 into the DRAM 14 according to their addresses.
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