| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve such a problem that the number of terminals increases since an interruption request from the outside of a processor is required in a conventional clock decelerating method. SOLUTION: When executing specified instructions, the execution of these instructions is automatically detected by hardware and on the basis of the detected information, the operation of a frequency divider 160 to input a source clock 150 is started. Then, a clock dividing the frequency of the source clock 150 is defined as an operating clock 170 of the processor so that the entire processor can be operated at a low speed.</p> |
