| 摘要 |
PROBLEM TO BE SOLVED: To reduce complicated processing by software, to reduce program capacity and also to reduce redesign man-hours in return program address designation of interrupt and subroutine in a microcontroller. SOLUTION: A write signal 11 for a RAM is generated by writing a return program address to a RAM 10 where a return program address is written, and a program counter controller 6 sets a return program address being the content of the RAM 10 where the return program address is written to a program counter 7 to make it possible to resume a program from a designated program address.
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