FMKVALID=B_0x0, MKVALID=B_0x0, ENCDIS=B_0x0
MCE status register
| MKVALID | Master key valid 0 (B_0x0): A valid key has not been written in MCE_MKEYRx registers, or a valid unlocked master key has been erased by hardware (if bit was set before) 1 (B_0x1): A valid key has been written in MCE_MKEYRx registers (write R0 -> R1 -> R2 -> R3 or the reverse) |
| FMKVALID | Fast master key valid 0 (B_0x0): A valid key has not been written in MCE_FMKEYRx registers, or a valid unlocked fast master key has been erased by hardware (if bit was set before) 1 (B_0x1): A valid key has been written in MCE_FMKEYRx registers (write R0 -> R1 -> R2 -> R3 or the reverse) |
| ENCDIS | encryption disabled 0 (B_0x0): When ENC bit and BREN are set in MCE_REGCRx all allowed write accesses in region x are encrypted, and all allowed read requests are decrypted. 1 (B_0x1): When ENC bit and BREN are set in any MCE_REGCRx all write accesses in region x are ignored, and all read requests return zero. All previously written key material are also erased. |