The GICR_IIDR characteristics are:
Provides information about the implementer and revision of the Redistributor.
This register is part of the GIC Redistributor registers functional group.
This register is accessible as follows:
Security disabled | Secure | Non-secure |
---|---|---|
RO | RO | RO |
This register is available in all configurations of the GIC. If the GIC implementation supports two Security states, this register is Common.
GICR_IIDR is a 32-bit register.
The GICR_IIDR bit assignments are:
31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
ProductID | 0 | 0 | 0 | 0 | Variant | Revision | Implementer |
An IMPLEMENTATION DEFINED product identifier.
Reserved, RES0.
An IMPLEMENTATION DEFINED variant number. Typically, this field is used to distinguish product variants, or major revisions of a product.
An IMPLEMENTATION DEFINED revision number. Typically, this field is used to distinguish minor revisions of a product.
Contains the JEP106 code of the company that implemented the Redistributor:
GICR_IIDR can be accessed through its memory-mapped interface:
Component | Frame | Offset |
---|---|---|
GIC Redistributor | RD_base | 0x0004 |
28/09/2017 08:24
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