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TRBAUTHSTATUS, Authentication Status Register

The TRBAUTHSTATUS characteristics are:

Purpose

Provides information about the state of the IMPLEMENTATION DEFINED authentication interface for debug.

For additional information, see the CoreSight Architecture Specification.

Configuration

TRBAUTHSTATUS is in the Core power domain.

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

Attributes

TRBAUTHSTATUS is a 32-bit register.

Field descriptions

Bits [31:28]

RTNID, bits [27:26]

RTID, bits [25:24]

Bits [23:16]

RLNID, bits [15:14]

RLID, bits [13:12]

Bits [11:8]

SNID, bits [7:6]

SID, bits [5:4]

NSNID, bits [3:2]

NSID, bits [1:0]

Accessing TRBAUTHSTATUS

TRBAUTHSTATUS can be accessed through the external debug interface:

Accessible as follows:

• When DoubleLockStatus() or !IsCorePowered(), accesses to this register generate an error response.
• Otherwise, accesses to this register are RO.

2026-03-26 20:27:25, 2026-03_rel

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