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PMCIDR0

PMCIDR0, Performance Monitors Component Identification Register 0

The PMCIDR0 characteristics are:

Purpose

Provides information to identify a Performance Monitor component.

For more information, see 'About the Component Identification scheme'.

Configuration

This register is present only when FEAT_PMUv3_EXT is implemented and an implementation implements PMCIDR0. Otherwise, direct accesses to PMCIDR0 are RES0.

If FEAT_DoPD is implemented, this register is in the Core power domain. If FEAT_DoPD is not implemented, this register is in the Debug power domain.

This register is required for CoreSight compliance.

Attributes

PMCIDR0 is a 32-bit register.

This register is part of the PMU block.

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																								PRMBL_0

Bits [31:8]

Reserved, RES0.

PRMBL_0, bits [7:0]

Preamble.

Reads as 0x0D.

Access to this field is RO.

Accessing PMCIDR0

Accesses to this register use the following encodings:

Accessible at offset 0xFF0 from PMU

When FEAT_DoPD is implemented and !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