ERRDEVARCH, Device Architecture Register

Defines the architect of the component. For RAS, this is Arm Limited.

Bits [31:28] are the JEP106 continuation code, 0b0100.

Bits [27:21] are the JEP106 identification code, 0b0111011.

Reads as 0b01000111011.

Access to this field is RO.

DEVARCH present. Indicates that the ERRDEVARCH register is present.

Reads as 0b1.

Access to this field is RO.

Revision. Defines the architecture revision of the component.

The value of this field is an IMPLEMENTATION DEFINED choice of:

REVISION	Meaning
0b0000	RAS System Architecture, error record group v1.0.
0b0001	RAS System Architecture, error record group v1.1. As 0b0000 and also: Simplifies ERR<n>STATUS. Adds support for additional ERR<n>MISC<m> registers. Adds support for the optional RAS Timestamp Extension. Adds support for the optional Common Fault Injection Model Extension.

All other values are reserved.

Access to this field is RO.

Revision. Defines the architecture revision of the component.

REVISION	Meaning
0b0000	RAS System Architecture, error record group v2.0.

All other values are reserved.

Access to this field is RO.

Revision. Defines the architecture revision of the component.

REVISION	Meaning
0b0000	RAS System Architecture, fault injection group v1.0.

All other values are reserved.

Access to this field is RO.

Reserved, RES0.

Architecture Version. Defines the architecture version of the component.

The value of this field is an IMPLEMENTATION DEFINED choice of:

ARCHVER	Meaning
0b0000	RAS System Architecture, error record group v1.
0b0001	RAS System Architecture, error record group v2. As 0b0000 and also: Adds an optional access control register, ERRACR. Adds an optional control for disabling error counters. Adds optional fault handling interrupt controls for Deferred errors. Adds support for continuation and proxy error records. Adds support for implementing Common Fault Injection Mechanism registers in a separate page from the error record registers. Adds support for simple interrupt control registers. Defines fields in ERRDEVID that describe these properties.

All other values are reserved.

ERRDEVARCH.ARCHVER and ERRDEVARCH.ARCHPART are also defined as a single field, ERRDEVARCH.ARCHID, so that ERRDEVARCH.ARCHVER is ERRDEVARCH.ARCHID[15:12].

Access to this field is RO.

Architecture Version. Defines the architecture version of the component.

ARCHVER	Meaning
0b0000	RAS System Architecture, fault injection group v1.

All other values are reserved.

ERRDEVARCH.ARCHVER and ERRDEVARCH.ARCHPART are also defined as a single field, ERRDEVARCH.ARCHID, so that ERRDEVARCH.ARCHVER is ERRDEVARCH.ARCHID[15:12].

Access to this field is RO.

Reserved, RES0.

Architecture Part. Defines the architecture of the component.

The value of this field is an IMPLEMENTATION DEFINED choice of:

ARCHPART	Meaning
0xA00	RAS System Architecture, error record group.
0xA08	RAS System Architecture, fault injection group.

ERRDEVARCH.ARCHVER and ERRDEVARCH.ARCHPART are also defined as a single field, ERRDEVARCH.ARCHID, so that ERRDEVARCH.ARCHPART is ERRDEVARCH.ARCHID[11:0].

Access to this field is RO.