CLOCK CONTROL DEVICE, MICROPROCESSOR, ELECTRONIC DEVICE, CLOCK CONTROL METHOD, AND CLOCK CONTROL PROGRAM

摘要

It is possible to easily and instantaneously modify the number of pulses of the operation clock to a microprocessor. While at least a bus busy signal (10) indicating that the bus (4) is busy from a microprocessor (1) is present by a clock control device (2), a clock of the same number of pulses as the system clock (8) is supplied as the operation clock (9) to the microprocessor (1). While the bus busy signal (10) is absent, an intermittent clock subtracted by the number of pulses of the system clock (8) is supplied as the operation clock (9) to the microprocessor (1).