CNTID, Counter Identification Register

The CNTID characteristics are:

Purpose

Indicates whether counter scaling is implemented.

Configuration

The power domain of CNTID is IMPLEMENTATION DEFINED.

This register is present only when FEAT_CNTSC is implemented. Otherwise, direct accesses to CNTID are RES0.

Attributes

CNTID is a 32-bit register.

Field descriptions

The CNTID bit assignments are:

Bits [31:4]

Reserved, RES0.

CNTSC, bits [3:0]

Indicates whether Counter Scaling is implemented

All other values are reserved.

Accessing the CNTID

In a system that supports Secure and Non-secure memory maps, the CNTControlBase frame, that includes this register, is implemented only in the Secure memory map.

CNTID can be accessed through the memory-mapped interfaces:

Accesses on this interface are RO.