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Arm Cortex-A55 Core Technical Reference Manual : TRCDEVARCH, Device Architecture Register

TRCDEVARCH, Device Architecture Register

The TRCDEVARCH identifies the ETM trace unit as an ETMv4 component.

Bit field descriptions

Figure D8-21 TRCDEVARCH bit assignments


ARCHITECT, [31:21]

Defines the architect of the component:

0x4Arm JEP continuation.
0x3BArm JEP 106 code.
PRESENT, [20]

Indicates the presence of this register:

0b1Register is present.
REVISION, [19:16]

Architecture revision:

0x02Architecture revision 2.
ARCHID, [15:0]

Architecture ID:

0x4A13ETMv4 component.

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 TRCDEVARCH can be accessed through the external debug interface, offset 0xFBC.

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