C10.33 ID Register 1

The TRCIDR1 characteristics are:

Purpose
Returns the base architecture of the trace unit.
Usage constraints
There are no usage constraints.
Configurations
Available in all configurations.
Attributes
See C10.1 ETM register summary.
Figure C10-32 TRCIDR1 bit assignments
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DESIGNER, [31:24]

Indicates which company designed the trace unit:

0x41ARM.
[23:16]

Reserved, res0.

[15:12]

Reserved, res1.

TRCARCHMAJ, [11:8]

Major trace unit architecture version number:

0b0100ETMv4.
TRCARCHMIN, [7:4]

Minor trace unit architecture version number:

0b0000Minor revision 0.
REVISION, [3:0]

Implementation revision number:

0x1r0p1.

The TRCIDR1 can be accessed through the external debug interface, offset 0x1E4.

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