KEY=others, PROTECT=0
Group A Protection of Register
| PROTECT | Protection of register(MMPUSAn, MMPUEAn and MMPUACAn) 0 (0): All Bus Master MPU Group A register writing is possible. 1 (1): All Bus Master MPU Group A register writing is protected. Read is possible. |
| KEY | Write Keyword The data written to these bits are not stored. 0 (others): Writing to the PROTECT bit is invalid. 165 (0xA5): Writing to the PROTECT bit is valid, when the KEY bits are written 0xA5. |