Signature stop-address register
| STOPA | Stop address for signature generation (the word specified by STOPA is included in the address range). The address is in units of memory words, not bytes. |
| RESERVED | Reserved, user software should not write ones to reserved bits. The value read from a reserved bit is not defined. |
| STRTBIST | When this bit is written to 1, signature generation starts. At the end of signature generation, this bit is automatically cleared. |