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TRCIDR6, Trace ID Register 6

The TRCIDR6 characteristics are:

Purpose

Returns the tracing capabilities of the trace unit.

Configuration

External register TRCIDR6 bits [31:0] are architecturally mapped to AArch64 System register TRCIDR6[31:0].

This register is present only when FEAT_ETE is implemented and FEAT_TRC_EXT is implemented. Otherwise, direct accesses to TRCIDR6 are RES0.

Attributes

TRCIDR6 is a 32-bit register.

Field descriptions

Bits [31:3]

EXLEVEL_RL_EL2, bit [2]

EXLEVEL_RL_EL1, bit [1]

EXLEVEL_RL_EL0, bit [0]

Accessing TRCIDR6

TRCIDR6 can be accessed through the external debug interface:

Accessible as follows:

• When OSLockStatus() or !IsTraceCorePowered(), 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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