9.5.1. Correlation with afvalid

When the TPIU receives a trigger signal, depending on the Formatter and Flush Control Register, it can request a flush of all trace components through the ATB slave interface. This causes all information around the trigger event to be flushed from the system before normal trace information is resumed. This ensures that all information related to the trigger is output before the TPA, or other capture device, is stopped.

With FOnTrig set to 1, it is possible to indicate the trigger on completion of the flush routine. This ensures that if the TPA stops the capture on a trigger, the TPA gets all historical data relating to the trigger. See Formatter and Flush Control Register.

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