| Field Name | Bits | Type | Reset Value | Description |
|---|
| ARCHITECT | 31:21 | roRead-only | 0x23B | Defines the architecture of the component. For trace, this is Arm Limited.Bits [31:28] are the JEP 106 continuation code, 0x4.Bits [27:21] are the JEP 106 ID code, 0x3B. |
| PRESENT | 20 | roRead-only | 0x1 | When set to 1, indicates that the DEVARCH is present.This field is RAO. |
| REVISION | 19:16 | roRead-only | 0x0 | Defines the architecture revision. For architectures defined by Arm this is the minor revision.For trace, the revision defined by ETMv4 is 0x0.All other values are reserved. |
| ARCHID | 15:0 | roRead-only | 0x4A13 | Defines this part to be a v8-A debug component. For architectures defined by Arm this is further subdivided.For trace, bits [15:12] are the architecture version, 0x4; bits [11:0] are the architecture part number, 0xA13.This corresponds to trace architecture version ETMv4. |