TRBDEVID1, Device Configuration Register 1

The TRBDEVID1 characteristics are:

Purpose

Provides discovery information for the component.

For additional information, see the CoreSight Architecture Specification.

Configuration

TRBDEVID1 is in the Core power domain.

This register is present only when FEAT_TRBE_EXT is implemented. Otherwise, direct accesses to TRBDEVID1 are RES0.

Attributes

TRBDEVID1 is a 32-bit register.

Field descriptions

313029282726252423222120191817161514131211109876543210
RES0PMG_MAXPARTID_MAX

Bits [31:24]

Reserved, RES0.

PMG_MAX, bits [23:16]
When FEAT_TRBE_MPAM is implemented:

Largest permitted PMG value. The TRBMPAM_EL1.PMG field must implement at least enough bits to represent TRBDEVID1.PMG_MAX.

This field has an IMPLEMENTATION DEFINED value.

Access to this field is RO.


Otherwise:

Reserved, RES0.

PARTID_MAX, bits [15:0]
When FEAT_TRBE_MPAM is implemented:

Largest permitted PARTID value. The TRBMPAM_EL1.PARTID field must implement at least enough bits to represent TRBDEVID1.PARTID_MAX.

This field has an IMPLEMENTATION DEFINED value.

Access to this field is RO.


Otherwise:

Reserved, RES0.

Accessing TRBDEVID1

TRBDEVID1 can be accessed through the external debug interface:

ComponentOffsetInstance
TRBE0xFC4TRBDEVID1

This interface is accessible as follows:


26/03/2024 09:49; 67c0ae5282a7629ba0ea0ba7267b43cd4f7939f6

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