C10.2 Programming Control Register

The TRCPRGCTLR characteristics are:

Purpose
Enables the ETM trace unit.
Usage constraints
See C3.4 Programming and reading ETM trace unit registers.
Configurations
Available in all configurations.
Attributes
See C10.1 ETM register summary.
Figure C10-1 TRCPRGCTLR bit assignments
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[31:1]
Reserved, res0.
EN, [0]

Trace program enable:

0The ETM trace unit interface in the processor is disabled, and clocks are enabled only when necessary to process APB accesses, or drain any already generated trace. This is the reset value.
1The ETM trace unit interface in the processor is enabled, and clocks are enabled. Writes to most trace registers are ignored.

The TRCPRGCTLR can be accessed through the external debug interface, offset 0x004.

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