| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a mechanism for providing notification of the existence of a DMA transfer request that is generated during a period in which the DMA transfer is interrupted.SOLUTION: A microcomputer 100 includes: a RAM 1; a CPU 2 that provides notification of a test period in which a RAM test is executed, and executes the test of the RAM 1; a transfer request management unit 4 that has an unprocessing flag 41 that is set to an ON state if a DMA (Direct Access Memory) transfer request is generated during the test period; and a transfer control unit 3 that receives the notification of the test period and the DMA transfer request, executes the DMA transfer request during a period other than the test period and sets the unprocessing flag 41 to the ON state during the test period.</p> |
