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PMDEVTYPE, Performance Monitors Device Type register

The PMDEVTYPE characteristics are:

Purpose

Indicates to a debugger that this component is part of a PEs performance monitor interface.

Configuration

It is IMPLEMENTATION DEFINED whether PMDEVTYPE is implemented in the Core power domain or in the Debug power domain.

Implementation of this register is OPTIONAL.

If ARMv8.3-DoPD is implemented, this register is in the Core power domain. If ARMv8.3-DoPD is not implemented, this register is in the Debug power domain.

Attributes

PMDEVTYPE is a 32-bit register.

Field descriptions

The PMDEVTYPE bit assignments are:

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
0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	SUB				MAJOR

Bits [31:8]

Reserved, RES0.

SUB, bits [7:4]

Subtype. Must read as 0x1 to indicate this is a component within a PE.

MAJOR, bits [3:0]

Major type. Must read as 0x6 to indicate this is a performance monitor component.

Accessing the PMDEVTYPE

PMDEVTYPE can be accessed through the external debug interface:

Component	Offset	Instance
PMU	0xFCC	PMDEVTYPE

This interface is accessible as follows:

When ARMv8.3-DoPD is not implemented or IsCorePowered() access to this register is RO.
Otherwise access to this register returns an Error.

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