Thales Dis France Sa

Thales Dis France Sas

Alaa Dou Nassre

Alexandre Berzati

Loïc Bonizec

Method for activating a feature of a chip having an interface comprising at least two power pins. The method comprises the following steps: the chip measures a series of voltage values between said power pins, the chip detects a series of sync signals different from clock signals, said sync signals being interleaved with said voltage values, the chip identifies a data sequence from said series of voltage values, and the chip activates the feature only if the data sequence matches a predefined pattern.

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Gemenos, France

Alaa Dou Nassre