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Dynamic power noise event counter

  • US 8,013,669 B2
  • Filed: 10/27/2009
  • Issued: 09/06/2011
  • Est. Priority Date: 10/27/2009
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a voltage generation unit coupled to receive a power supply voltage, wherein the voltage generation unit is configured to generate first and second voltages responsive to the power supply voltage;

    a detection unit coupled to receive the first and second voltages, wherein the detection unit is configured to detect power supply noise events based on values of the first and second voltages and to generate a count indicative of a number of power supply noise events; and

    a power control unit coupled to receive the count from the detection unit and configured to change one or more parameters related to the power supply voltage responsive to receiving a count value exceeding a predetermined threshold value.

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