GICR_IIDR, Redistributor Implementer Identification Register

The GICR_IIDR characteristics are:

Purpose

Provides information about the implementer and revision of the Redistributor.

Configuration

This register is available in all configurations of the GIC. If the GIC implementation supports two Security states, this register is Common.

Attributes

GICR_IIDR is a 32-bit register.

Field descriptions

The GICR_IIDR bit assignments are:

313029282726252423222120191817161514131211109876543210
ProductID0000VariantRevisionImplementer

ProductID, bits [31:24]

An IMPLEMENTATION DEFINED product identifier.

Bits [23:20]

Reserved, RES0.

Variant, bits [19:16]

An IMPLEMENTATION DEFINED variant number. Typically, this field is used to distinguish product variants, or major revisions of a product.

Revision, bits [15:12]

An IMPLEMENTATION DEFINED revision number. Typically, this field is used to distinguish minor revisions of a product.

Implementer, bits [11:0]

Contains the JEP106 code of the company that implemented the Redistributor:

Accessing the GICR_IIDR

GICR_IIDR can be accessed through the memory-mapped interfaces:

ComponentFrameOffsetInstance
GIC RedistributorRD_base0x0004GICR_IIDR

This interface is accessible as follows:




13/12/2018 16:42; 6379d01c197f1d40720d32d0f84c419c9187c009

Copyright © 2010-2018 Arm Limited or its affiliates. All rights reserved. This document is Non-Confidential.