C11.2 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 on page C3-601.
Configurations
Available in all configurations.
Attributes
See C11.1 ETM register summary on page C11-733.
31 1 0
EN
RES0
Figure C11-1 TRCPRGCTLR bit assignments
[31:1]
Reserved, RES0.
EN, [0]
Trace program enable:
0 The 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.
1 The 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.
C11 ETM registers
C11.2 Programming Control Register
100236_0100_00_en Copyright © 2015–2017, 2019 Arm Limited or its affiliates. All rights
reserved.
C11-736
Non-Confidential
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