Monitoring propagation delay

Abstract

A monitor device for monitoring a propagation delay of a signal along a path through an integrated circuit is disclosed. The monitor device comprises a delay device configured to receive the signal and generate a delayed signal being a version of the received signal that is time-delayed relative to the received signal, a detection window device configured to generate a detection window signal based on a clock signal of the integrated circuit, and a determination device configured to determine whether a value of the received signal is different to a value of the delayed signal during a time defined by the detection window signal, and to generate a determination signal based on the determination.

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