10.4.4 Trigger inputs and outputs

Trigger inputs and outputs that are available to the CTI.

The following table shows the CTI inputs.

Table 10-17 Trigger inputs

CTI input Name Description
0 DBGTRIGGER, pulsed Pulsed on entry to debug state
1 PMUIRQ PMU generated interrupt
2 ETMEXTOUT[0] ETM external output
3 ETMEXTOUT[1] ETM external output
4 ETMEXTOUT[2] ETM external output
5 ETMEXTOUT[3] ETM external output
6 COMMTX Debug communication transmit channel is empty
7 COMMRX Debug communication receive channel is full

The following table shows the CTI outputs.

Table 10-18 Trigger outputs

CTI output Name Description
0 EDBGRQ Causes the core to enter debug state
1 ETMEXTIN[0] ETM external input - ETM event
2 ETMEXTIN[1] ETM external input - ETM event
3 ETMEXTIN[2] ETM external input - ETM event
4 ETMEXTIN[3] ETM external input - ETM event
5 - -
6 nCTIIRQ CTI interrupt
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