8.2.3. Disabling a CTI

ARM recommends that the CTI that is connected to a processor is disabled before the processor clock is stopped. This minimizes the likelihood of unexpected events entering the cross-triggering system or affecting the processor when its clock is restarted.

To disable the CTI, do the following:

  1. Clear the event-to-channel mapping in the CTIINEN registers.

  2. Clear the channel-to-event mapping in the CTIOUTEN registers.

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