| 摘要 |
PROBLEM TO BE SOLVED: To improve the responsiveness, by specifying the interrupt factor of a functional block used with higher priority, without performing tree-structure tracking processing for the interrupt factor and by speeding up to shorten the turnaround time of interrupt processing. SOLUTION: A data processor 100, having a plurality of function blocks for executing a data processing function and an interrupt control block 140 for outputting an interrupt request signal, by inputting and collecting a plurality of interrupt signals output from the function blocks is provided with a priority setting register for setting whether priority interrupts are needed for each functional block; and each functional block outputs priority interrupt signals, including block codes specified the function blocks other than the interrupt signals and inputs the priority interrupt signals to the control block 140, when the priority setting register is set as the priority interrupts are needed. COPYRIGHT: (C)2004,JPO
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