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Clock generator capable of shut-down mode and clock generation method

DC CAFC
  • US 5,502,689 A
  • Filed: 02/24/1994
  • Issued: 03/26/1996
  • Est. Priority Date: 07/21/1992
  • Status: Expired due to Term
First Claim
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1. A clock generator for an electrical system, said clock generator capable of providing at least one output clock signal, said clock generator comprising:

  • means for producing said at least one output clock signal;

    means for disabling said means for producing upon reception of a disable activation signal;

    means for receiving a shut-down entry request signal;

    means for verifying that said received shut-down entry request signal meets a predetermined protocol requirement, said means for verifying comprising at least two registers, said means for verifying generating said disable activation signal upon verification that a received shut-down entry request signal does meet said predetermined protocol requirement, which disable activation signal is conducted to said means for disabling.

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