Provides identification information for the PE, including an implementer code for the device and a device ID number
| REVISION | IMPLEMENTATION DEFINED revision number for the device |
| PARTNO | IMPLEMENTATION DEFINED primary part number for the device |
| ARCHITECTURE | Defines the Architecture implemented by the PE |
| VARIANT | IMPLEMENTATION DEFINED variant number. Typically, this field is used to distinguish between different product variants, or major revisions of a product |
| IMPLEMENTER | This field must hold an implementer code that has been assigned by ARM |