PURPOSE: To provide an interrupt control circuit which reduces the number of signal lines to raise the mounting density by giving plural meanings to one signal line to multiplex them.

CONSTITUTION: Interrupt output means 1, 2, 3, and 4 which output plural interrupt signals onto the same interrupt signal line 13 on a bus in accordance with prescribed timings, a taking-in timing generating means 5 which generates timings for taking-in of plural interrupt signals on the interrupt signal line 13, and plural latch means 7 which separate, take in, and store plural interrupt signals on the interrupt signal line 13 in accordance with timings generated by the taking-in timing generating means 5 are provided.