CTIPIDR4, CTI Peripheral Identification Register 4

The CTIPIDR4 characteristics are:

Purpose

Provides information to identify a CTI component.

For more information see 'About the Peripheral identification scheme' in the ARMv8 ARM, section H8 (About the External Debug Registers).

This register is part of the Cross-Trigger Interface registers functional group.

Usage constraints

This register is accessible as follows:

Default
RO

Configuration

CTIPIDR4 is in the Debug power domain.

Implementation of this register is OPTIONAL.

This register is required for CoreSight compliance.

Attributes

CTIPIDR4 is a 32-bit register.

Field descriptions

The CTIPIDR4 bit assignments are:

313029282726252423222120191817161514131211109876543210
000000000000000000000000SIZEDES_2

Bits [31:8]

Reserved, RES0.

SIZE, bits [7:4]

Size of the component. RAZ. Log2 of the number of 4KB pages from the start of the component to the end of the component ID registers.

DES_2, bits [3:0]

Designer, JEP106 continuation code, least significant nibble. For ARM Limited, this field is 0b0100.

Accessing the CTIPIDR4

CTIPIDR4 can be accessed through the external debug interface:

ComponentOffset
CTI 0xFD0



28/09/2017 08:24

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