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CTIAUTHSTATUS

CTIAUTHSTATUS, CTI Authentication Status register

The CTIAUTHSTATUS characteristics are:

Purpose

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

Configuration

CTIAUTHSTATUS is in the Debug power domain.

This register is OPTIONAL, and is required for CoreSight compliance.

Attributes

CTIAUTHSTATUS is a 32-bit register.

Field descriptions

31	30	29	28	27	26	25	24	23	22	21	20	19	18	17	16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
RES0				RAZ				RES0								RAZ				RES0				RAZ				NSNID		NSID

Bits [31:28]

Reserved, RES0.

Bits [27:24]

Reserved, RAZ.

Bits [23:16]

Reserved, RES0.

Bits [15:12]

Reserved, RAZ.

Bits [11:8]

Reserved, RES0.

Bits [7:4]

Reserved, RAZ.

NSNID, bits [3:2]

If EL3 is implemented, this field holds the same value as DBGAUTHSTATUS_EL1.NSNID.

If EL3 is not implemented and the implemented Security state is Secure state, this field holds the same value as DBGAUTHSTATUS_EL1.SNID.

NSID, bits [1:0]

If EL3 is implemented, this field holds the same value as DBGAUTHSTATUS_EL1.NSID.

If EL3 is not implemented and the implemented Security state is Secure state, this field holds the same value as DBGAUTHSTATUS_EL1.SID.

Accessing CTIAUTHSTATUS

CTIAUTHSTATUS can be accessed through the external debug interface:

Component	Offset	Instance
CTI	0xFB8	CTIAUTHSTATUS

Accesses to this register are RO.

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