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css600_cti connects one or more event sources and one or more event destinations to the cross trigger network.
The CTI has the following functional interfaces:
The CTI includes configuration tie-off inputs that enable several trigger input and output types to be connected.
Arm recommends that the CTI that is connected to a processor is disabled before the processor clock is stopped. This operation minimizes the likelihood of unexpected events entering the cross-triggering system or affecting the processor when its clock is restarted. The CTICONTROL.CTIEN register bit can be used to disable the CTI globally without changing the event mapping programming.
The following figure shows the external connections on the Cross Trigger Interface.