13.2. Trigger inputs and outputs

This section describes the trigger inputs and outputs that are available to the CTI.

Table 13.1 shows the CTI inputs.

Table 13.1. Trigger inputs

CTI inputNameDescription
0DBGTRIGGER, pulsed

Pulsed on entry to debug state

1PMUIRQ[a]

PMU generated interrupt

2EXTOUT[0]

PTM external output

3EXTOUT[1]

PTM external output

4COMMTX

Debug communication transmit channel is empty

5COMMRX

Debug communication receive channel is full

6PTMTRIGGER

PTM trigger

7-

-

[a] This signal is the same as nPMUIRQ with inverted polarity.


Table 13.2 shows the CTI outputs.

Table 13.2. Trigger outputs

CTI outputNameDescription
0EDBGRQ

Causes the processor to enter debug state

1EXTIN[0]

PTM external input

2EXTIN[1]

PTM external input

3EXTIN[2]

PTM external input

4EXTIN[3]

PTM external input

5CTIEXTTRIG

CTI external trigger

6nCTIIRQ

CTI interrupt

7DBGRESTART

Causes the processor to exit debug state


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