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

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				RTNID		RTID		RES0								RLNID		RLID		RES0				SNID		SID		NSNID		NSID

Bits [31:28]

Reserved, RES0.

RTNID, bits [27:26]

Root non-invasive debug.

RTNID	Meaning
0b00	Not implemented.

Access to this field is RO.

RTID, bits [25:24]

Root invasive debug.

This field has the same value as DBGAUTHSTATUS_EL1.RTID.

Bits [23:16]

Reserved, RES0.

RLNID, bits [15:14]

Realm non-invasive debug.

RLNID	Meaning
0b00	Not implemented.

Access to this field is RO.

RLID, bits [13:12]

Realm invasive debug.

This field has the same value as DBGAUTHSTATUS_EL1.RLID.

Bits [11:8]

Reserved, RES0.

SNID, bits [7:6]

Secure non-invasive debug.

SNID	Meaning
0b00	Not implemented.

Access to this field is RO.

SID, bits [5:4]

Secure invasive debug.

This field has the same value as DBGAUTHSTATUS_EL1.SID.

NSNID, bits [3:2]

Non-secure non-invasive debug.

NSNID	Meaning
0b00	Not implemented.

Access to this field is RO.

NSID, bits [1:0]

Non-secure invasive debug.

This field has the same value as DBGAUTHSTATUS_EL1.NSID.

Accessing TRBAUTHSTATUS

TRBAUTHSTATUS can be accessed through the external debug interface:

Component	Offset	Instance
TRBE	0xFB8	TRBAUTHSTATUS

This interface is accessible as follows:

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

15/03/2024 21:50; 3156453dc257d36c4630671c3d896bfc69048210