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Apparatus and method for accurately tuning the speed of an integrated circuit

  • US 7,116,142 B2
  • Filed: 12/02/2004
  • Issued: 10/03/2006
  • Est. Priority Date: 12/02/2004
  • Status: Active Grant
First Claim
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1. A method for determining the slack in a monitored path on an integrated circuit, comprising:

  • capturing a data signal from the monitored path;

    adding a first delay to the data signal from the monitored path to generate a delayed data signal;

    comparing a first value of the data signal to a second value of the delayed data signal;

    determining if the first value and the second value match; and

    outputting a third value corresponding to a second delay of the delayed data signal, the third value being indicative of the slack in the monitored path for evaluating speed performance of the integrated circuit, if the first value and the second value do not match, wherein the third value is used to tune a speed of the integrated circuit.

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