Implementer Identification Register
| IMPLEMENTER | Contains the JEP106 code: [11-8] JEP106 continuation code of implementer [7] Always 0 [6-0] JEP106 identity code of implementer |
| REVISION | Minor revisions of the MHU |
| VARIANT | Major revision of the MHU |
| PRODUCT_ID | MHU part ID |