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Clock control method and information processing device employing the clock control method

  • US 20020129292A1
  • Filed: 03/08/2002
  • Published: 09/12/2002
  • Est. Priority Date: 03/08/2001
  • Status: Active Grant
First Claim
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1. A clock control method employed in an information processing device, the information processing device including:

  • a processing circuit that performs processing in synchronization with a clock; and

    a clock supply control circuit that controls supply of the clock to the processing circuit, the clock control method comprising;

    extracting a number of cycles required from start of execution of processing in the processing circuit until output of a result of the processing;

    transferring the extracted number of cycles to the clock supply control circuit;

    starting the supply of the clock when the processing is started in the processing circuit; and

    stopping the supply of the clock to the processing circuit when the supply of the clock with the number of cycles is completed.

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