| 摘要 |
<p>PROBLEM TO BE SOLVED: To make a correction executable without giving any influence to the control processing by a microcomputer. SOLUTION: In this microcomputer 1, a report signal showing the switching completion of an operation clock is outputted from a switching control part 27 to a CPU 11. Therefore, the CPU 11 can grasp the fact that the operation clock of a frequency before switching is inputted from the time when a frequency switching command is generated to the time when the frequency is actually switched, and the count number counted by a FRC 31 by use of the operation clock before switching during it. Therefore, the preset value of an OCR 33 can be corrected by use of the count number, whereby the slippage of control timing of the CPU 11 can be corrected. Consequently, the control by the microcomputer 1 can be stably executed without having any operation delay.</p> |
