| 摘要 |
PROBLEM TO BE SOLVED: To reduce overhead when switching read and write by allowing a memory controller to selectively collect a plurality of read requesting circuits and write requesting circuits to access a common memory when many circuits simultaneously access the common memory in a printer or the like. SOLUTION: The memory controller selectively collects a plurality of read requesting circuits and write requesting circuits to access the common memory. Overhead when switching read and write is thereby reduced to attain high speed. COPYRIGHT: (C)2006,JPO&NCIPI
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