GITS_IIDR, ITS Identification Register

The GITS_IIDR characteristics are:

Purpose

Provides information about the implementer and revision of the ITS.

Configuration

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

Attributes

GITS_IIDR is a 32-bit register.

Field descriptions

313029282726252423222120191817161514131211109876543210
ProductIDRES0VariantRevisionImplementer

ProductID, bits [31:24]

Product Identifier.

This field has an IMPLEMENTATION DEFINED value.

Access to this field is RO.

Bits [23:20]

Reserved, RES0.

Variant, bits [19:16]

Variant number. Typically, this field is used to distinguish product variants, or major revisions of a product.

This field has an IMPLEMENTATION DEFINED value.

Access to this field is RO.

Revision, bits [15:12]

Revision number. Typically, this field is used to distinguish minor revisions of a product.

This field has an IMPLEMENTATION DEFINED value.

Access to this field is RO.

Implementer, bits [11:0]

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

Accessing GITS_IIDR

GITS_IIDR can be accessed through the memory-mapped interfaces:

ComponentOffsetInstance
GIC ITS control0x0004GITS_IIDR

This interface is accessible as follows:


30/06/2021 15:22; 2a17f7750cfd1ab239f20f6cf29877ba8041794f

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