ERRDEVARCH, Device Architecture Register

The ERRDEVARCH characteristics are:

Purpose

Provides discovery information for the component.

Configuration

ERRDEVARCH is implemented only as part of a memory-mapped group of error records.

Attributes

ERRDEVARCH is a 32-bit register.

Field descriptions

313029282726252423222120191817161514131211109876543210
ARCHITECTPRESENTREVISIONARCHVERARCHPART

ARCHITECT, bits [31:21]

Architect. Defines the architect of the component. Bits [31:28] are the JEP106 continuation code (JEP106 bank ID, minus 1) and bits [27:21] are the JEP106 ID code.

ARCHITECTMeaning
0b01000111011

JEP106 continuation code 0x4, ID code 0x3B. Arm Limited.

Access to this field is RO.

PRESENT, bit [20]

DEVARCH present. Defines that ERRDEVARCH register is present.

PRESENTMeaning
0b0

Device Architecture information not present.

0b1

Device Architecture information present.

This field reads as 1.

REVISION, bits [19:16]
When UInt(ERRDEVARCH.ARCHPART) == 0xA00 and ERRDEVARCH.ARCHVER == 0b0000:

Revision. Defines the architecture revision of the component.

REVISIONMeaning
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.


When UInt(ERRDEVARCH.ARCHPART) == 0xA00 and ERRDEVARCH.ARCHVER == 0b0001:

Revision. Defines the architecture revision of the component.

REVISIONMeaning
0b0000

RAS System Architecture, error record group v2.0.

All other values are reserved.

Access to this field is RO.


When UInt(ERRDEVARCH.ARCHPART) == 0xA08 and ERRDEVARCH.ARCHVER == 0b0000:

Revision. Defines the architecture revision of the component.

REVISIONMeaning
0b0000

RAS System Architecture, fault injection group v1.0.

All other values are reserved.

Access to this field is RO.


Otherwise:

Reserved, RES0.

ARCHVER, bits [15:12]
When UInt(ERRDEVARCH.ARCHPART) == 0xA00:

Architecture Version. Defines the architecture version of the component.

ARCHVERMeaning
0b0000

RAS System Architecture, error record group v1.

0b0001

RAS System Architecture, error record group v2. As 0b0000 and also defines fields in ERRDEVID that describe additional properties of this error record group.

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].


When UInt(ERRDEVARCH.ARCHPART) == 0xA08:

Architecture Version. Defines the architecture version of the component.

ARCHVERMeaning
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.


Otherwise:

Reserved, RES0.

ARCHPART, bits [11:0]

Architecture Part. Defines the architecture of the component.

ARCHPARTMeaning
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].

Accessing ERRDEVARCH

ERRDEVARCH can be accessed through the memory-mapped interfaces:

ComponentOffsetInstance
RAS0xFBCERRDEVARCH

Accesses to this interface are RO.


30/09/2022 15:58; 21c5a6dd0fdaf10a712e2f2d6fffbdbd66d4d96f

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