The MPAMF_IIDR characteristics are:
Uniquely identifies the MSC implementation by the combination of implementer, product ID, variant, and revision.
The power domain of MPAMF_IIDR is IMPLEMENTATION DEFINED.
This register is present only when FEAT_MPAM is implemented. Otherwise, direct accesses to MPAMF_IIDR are RES0.
The power and reset domain of each MSC component is specific to that component.
MPAMF_IIDR is a 32-bit register.
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 | Variant | Revision | Implementer |
The MSC implementer as identified in the MPAMF_IIDR.Implementer field must assure each product has a unique ProductID from any other with the same Implementer value.
This field has an IMPLEMENTATION DEFINED value.
Access to this field is RO.
This field distinguishes product variants or major revisions of the product.
Implementations of ProductID with differing software interfaces are expected to have different values in the MPAMF_IIDR.Variant field.
This field has an IMPLEMENTATION DEFINED value.
Access to this field is RO.
This field distinguishes minor revisions of the product.
This field is intended to differentiate product revisions that are minor changes and are largely software compatible with previous revisions.
This field has an IMPLEMENTATION DEFINED value.
Access to this field is RO.
Contains the JEP106 code of the company that implemented the MPAM MSC.
[11:8] must contain the JEP106 continuation code of the implementer.
[7] must always be 0.
[6:0] must contain the JEP106 identity code of the implementer.
For an Arm implementation, bits[11:0] are 0x43B.
This register is within the MPAM feature page memory frames. In a system that supports Secure and Non-secure memory maps, there must be both Secure and Non-secure MPAM feature pages.
MPAMF_IIDR is read-only.
MPAMF_IIDR must be readable from the Non-secure and Secure MPAM feature pages.
MPAMF_IIDR must have the same contents in the Secure and Non-secure MPAM feature pages.
Component | Frame | Offset | Instance |
---|---|---|---|
MPAM | MPAMF_BASE_s | 0x0018 | MPAMF_IIDR_s |
Accesses on this interface are RO.
Component | Frame | Offset | Instance |
---|---|---|---|
MPAM | MPAMF_BASE_ns | 0x0018 | MPAMF_IIDR_ns |
Accesses on this interface are RO.
30/09/2021 15:34; 092b4e1bbfbb45a293b198f9330c5f529ead2b0f
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