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TRBDEVTYPE, Device Type Register

The TRBDEVTYPE characteristics are:

Purpose

Provides discovery information for the component. If the part number field is not recognized, a debugger can report the information that is provided by TRBDEVTYPE about the component instead.

For additional information, see the CoreSight Architecture Specification.

Configuration

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

TRBDEVTYPE is in the Core power domain.

Attributes

TRBDEVTYPE is a 32-bit register.

Field descriptions

313029282726252423222120191817161514131211109876543210
RES0SUBMAJOR

Bits [31:8]

Reserved, RES0.

SUB, bits [7:4]

Component sub-type.

SUBMeaning
0b0010

When MAJOR == 0x1 (Trace sink): Trace buffer or router.

This field reads as 0x2.

MAJOR, bits [3:0]

Component major type.

MAJORMeaning
0b0001

Trace sink.

Other values are defined by the CoreSight Architecture.

Access to this field is RO.

Accessing TRBDEVTYPE

TRBDEVTYPE can be accessed through the external debug interface:

ComponentOffsetInstance
TRBE0xFCCTRBDEVTYPE

This interface is accessible as follows:


30/09/2022 15:58; 21c5a6dd0fdaf10a712e2f2d6fffbdbd66d4d96f

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