D10.55 TRCPIDR1, ETM Peripheral Identification Register 1

The TRCPIDR1 provides information to identify a trace component.

Bit field descriptions

The TRCPIDR1 is a 32-bit register.

Figure D10-52 TRCPIDR1 bit assignments
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RES0, [31:8]
res0Reserved.
DES_0, [7:4]
0xBArm Limited. This is bits[3:0] of JEP106 ID code.
Part_1, [3:0]
0xDMost significant four bits of the ETM trace unit part number.

Bit fields and details not provided in this description are architecturally defined. See the Arm® Embedded Trace Macrocell Architecture Specification ETMv4.

The TRCPIDR1 can be accessed through the external debug interface, offset 0xFE4.

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