| 摘要 |
A processor ( 400 ) includes a clock source ( 402 ), a central processing unit (CPU) ( 408 ), and a clock generator ( 404 ). The clock source ( 402 ) includes an output for providing a periodic clock signal. The CPU ( 408 ) includes an input for receiving a CPU clock signal. The clock generator ( 404 ) includes a first input coupled to the output of the clock source ( 402 ), a second input for receiving a mode signal that indicates an output frequency, and an output coupled to the input of the CPU ( 408 ). The clock generator ( 404 ) provides the CPU clock signal using periodic pulse skipping such that the CPU clock signal has a number of transitions over a unit of time corresponding to the output frequency.
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