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Semiconductor device and driving method thereof

  • US 9,129,667 B2
  • Filed: 05/22/2013
  • Issued: 09/08/2015
  • Est. Priority Date: 05/25/2012
  • Status: Active Grant
First Claim
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1. A semiconductor device comprising:

  • a first circuit configured to control a state including a driving voltage and a clock frequency of a processor core;

    a first memory circuit and a second memory circuit which store state data;

    a second circuit generating a power supply voltage and a third circuit generating a clock, the second circuit and the third circuit being electrically connected to the first circuit; and

    the processor core electrically connected to the second circuit and the third circuit through a switch,wherein the processor cores comprises;

    a first memory; and

    a second memory transmitting and receiving data to/from the first memory; and

    wherein the first circuit reads state data stored in the first memory circuit and determines whether data in processing in the processor core is stored with a current state data when the first circuit receives an instruction for an off operation.

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