TRCDEVID: Trace Device Configuration Register

Purpose

Provides discovery information for the component.

For additional information, see the CoreSight Architecture Specification.

Configuration

External register TRCDEVID bits [31:0] are architecturally mapped to AArch64 System register TRCDEVID[31:0].

This register is present only when FEAT_ETE is implemented and FEAT_TRC_EXT is implemented. Otherwise, direct accesses to TRCDEVID are RES0.

Attributes

TRCDEVID is a 32-bit register.

Field descriptions

Bits [31:0]

Accessing TRCDEVID

External debugger accesses to this register are unaffected by the OS Lock.

TRCDEVID can be accessed through the external debug interface:

This interface is accessible as follows:

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