Importance

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Abstract

There is disclosed a single chip integrated circuit device including on-chip functional circuitry and a plurality of diagnostic units connected to monitor the on-chip functional circuitry. The plurality of diagnostic units detect respective trigger conditions by comparing signals from the on-chip functional circuitry with data held in respective diagnostic registers of the diagnostic units. The single chip integrated circuit device further includes trigger sequence control circuitry arranged to receive the trigger conditions and to initiate a trigger message when a predetermined sequence of the trigger conditions is detected. There is also disclosed a method of controlling such trigger sequences.

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First Claim