PMPIDR2, Performance Monitors Peripheral Identification Register 2

The PMPIDR2 characteristics are:

Purpose

Provides information to identify a Performance Monitor component.

For more information see 'About the Peripheral identification scheme' in the Arm® Architecture Reference Manual, Armv8, for Armv8-A architecture profile, section H8 (About the External Debug Registers).

Configuration

It is IMPLEMENTATION DEFINED whether PMPIDR2 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.

This register is required for CoreSight compliance.

Attributes

PMPIDR2 is a 32-bit register.

Field descriptions

The PMPIDR2 bit assignments are:

313029282726252423222120191817161514131211109876543210
000000000000000000000000REVISIONJEDECDES_1

Bits [31:8]

Reserved, RES0.

REVISION, bits [7:4]

Part major revision. Parts can also use this field to extend Part number to 16-bits.

JEDEC, bit [3]

RAO. Indicates a JEP106 identity code is used.

DES_1, bits [2:0]

Designer, most significant bits of JEP106 ID code. For Arm Limited, this field is 0b011.

Accessing the PMPIDR2

PMPIDR2 can be accessed through the external debug interface:

ComponentOffsetInstance
PMU0xFE8PMPIDR2

This interface is accessible as follows:




13/12/2018 16:42; 6379d01c197f1d40720d32d0f84c419c9187c009

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