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Arm Cortex-A55 Core Technical Reference Manual : TRCPIDR1, ETM Peripheral Identification Register 1

TRCPIDR1, ETM Peripheral Identification Register 1

The TRCPIDR1 provides information to identify a trace component.

Bit field descriptions

Figure D8-53 TRCPIDR1 bit assignments


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® Architecture Reference Manual Armv8, for Armv8-A architecture profile.

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

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