Circuit arrangement for validation of operation of a logic module in a multipower logic architecture and corresponding validation method

Abstract

A first circuit is coupled to a second circuit via a communication link. The first circuit generates a first validation signal, a second validation signal, and control signals, and transmits the first and second validation signals to the second circuit via the communication link. The second circuit validates the control signals based on the first and second binary validation signals. The validating includes: verifying that when the first validation signal has a first value, the second validation signal has a second value different from the first value; verifying that when the second validation signal has the first value, the first validation signal has the second value; verifying detection of a transition edge of the first validation signal within a threshold number of clock cycles; and verifying detection of a transition edge of the second validation signal within the threshold number of clock cycles.