| 摘要 |
PROBLEM TO BE SOLVED: To provide a microcomputer capable of executing processing on a plurality of events more efficiently.SOLUTION: If a peripheral resource generates an event and an interrupt factor flag is set to an interrupt controller 3, an event storage control unit 7 writes a corresponding interrupt factor number to one column in an event generation register 9 and increments a register value of a next-write-position storage register 8 whenever writing the interrupt factor number. When event processing starts at certain time intervals, a CPU 2 compares a register value indicated first by the register 8 with a value of an event processing counter 10 managed by the CPU 2, reads the interrupt factor number stored in the register 9 and indicated by an address of the counter value of the counter 10 if the latter is lower than the former, and processes the event corresponding to the number. The CPU 2 repeatedly executes the processing until the value of the register 8 matches the value of the counter 10.SELECTED DRAWING: Figure 1 |
