CIPHERSEL=B_0x0, MKLOCK=B_0x0, GLOCK=B_0x0
MCE configuration register
| GLOCK | Global lock 0 (B_0x0): MCE registers are writable 1 (B_0x1): All writes to MCE registers are ignored, with the exception of MCE_IACR and MCE_IAIER registers. |
| MKLOCK | Master keys lock 0 (B_0x0): Writes to MCE_MKEYRx and MCE_FMKEYRx registers are allowed 1 (B_0x1): Writes to MCE_MKEYRx and MCE_FMKEYRx registers are ignored until next MCE reset. |
| CIPHERSEL | Cipher selection 0 (B_0x0): No cipher is selected. Any read (resp. write) to an encrypted region with BREN=1 returns zero (resp. is ignored), and illegal access flag IAEF bit is set. 1 (B_0x1): AES-128 cipher selected for all encrypted regions 2 (B_0x2): Noekeon cipher selected for all encrypted regions 3 (B_0x3): AES-256 cipher selected for all encrypted regions |