VOLTAGE DROOP MONITORING CIRCUITS, SYSTEM-ON CHIPS AND METHODS OF OPERATING THE SYSTEM-ON CHIPS

In one embodiment, the voltage droop monitoring circuit includes a ring oscillator circuit block configured to generate a plurality of oscillation signals and configured to output a selected oscillation signal from one of the plurality of oscillation signals based on a first control signal. The firs...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KIM, Yong-Hwan, KIM, Wook, SHIN, In-Sub
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:In one embodiment, the voltage droop monitoring circuit includes a ring oscillator circuit block configured to generate a plurality of oscillation signals and configured to output a selected oscillation signal from one of the plurality of oscillation signals based on a first control signal. The first control signal is based on a power supply voltage of a functional circuit block. The voltage droop monitoring circuit further includes a counter configured to generate a count value based on the selected oscillation signal, and a droop detector configured detect droop in the power supply voltage of the functional circuit block based on the count value and at least one threshold value.