REG_EN=B_0x0, KEYLOCK=B_0x0, CONFIGLOCK=B_0x0
OTFDEC region 4 configuration register
| REG_EN | region on-the-fly decryption enable 0 (B_0x0): On-the-fly decryption is disabled for this region. 1 (B_0x1): On-the-fly decryption is enabled for this region. |
| CONFIGLOCK | region config lock 0 (B_0x0): Writes to this region OTFDEC_RxCFGR, OTFDEC_RxSTARTADDR, OTFDEC_RxENDADDR and OTFDEC_RxNONCERy registers are allowed. 1 (B_0x1): Writes to this region OTFDEC_RxCFGR, OTFDEC_RxSTARTADDR, OTFDEC_RxENDADDR and OTFDEC_RxNONCERy registers are ignored until next OTFDEC reset. |
| KEYLOCK | region key lock 0 (B_0x0): Writes to this region KEYRx registers are allowed. 1 (B_0x1): Writes to this region KEYRx registers are ignored until next OTFDEC reset. |
| MODE | operating mode 2 (B_0x2): All read accesses are decrypted (instruction or data). 3 (B_0x3): Enhanced encryption mode is activated, and only instruction accesses are decrypted |
| KEYCRC | region key 8-bit CRC |
| REG_VERSION | region firmware version |