| 摘要 |
PROBLEM TO BE SOLVED: To make the request of interruption processing to a CPU in the order of the generation of interruption requests when a plurality of interruption requests are made. SOLUTION: This interruption processing circuit is provided with a generation order storage circuit 3 for assigning and storing priority orders to a plurality of interrupting inputs having the same priority order according to the generation order of the interruption requests. The generation order storage circuit 3 requests interruption processing to a CPU about the interrupting input whose priority order is the highest, and each time the interruption processing about the interrupting input whose priority order is the highest is completed, the generation order storage circuit 3 updates the storage content so that the priority order about the residual interrupting inputs whose interruption requests have been made can be advanced by one. COPYRIGHT: (C)2008,JPO&INPIT
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