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Trigger inputs and outputs

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

Table 14.1 shows the CTI inputs.

Table 14.1. Trigger inputs
CTI input Name Description
0 DBGTRIGGER, pulsed

Pulsed on entry to debug state

1 PMUIRQ[a]

PMU generated interrupt

2 -

-

3 - -
4 EXTOUT[0]

ETM trace unit external output

5 EXTOUT[1]

ETM trace unit external output

6 EXTOUT[2]

ETM trace unit external output

7 EXTOUT[3]

ETM trace unit external output

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


Table 14.2 shows the CTI outputs.

Table 14.2. Trigger outputs
CTI output Name Description
0 EDBGRQ

Causes the processor to enter debug state

1 DBGRESTART Causes the processor to exit debug state
2 CTIIRQ

CTI interrupt

3 - -
4 EXTIN[0]

ETM trace unit external input

5 EXTIN[1]

ETM trace unit external input

6 EXTIN[2]

ETM trace unit external input

7 EXTIN[3]

ETM trace unit external input


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