PROTECT=0, KEY=others
Stack Pointer Monitor Protection Register
| PROTECT | Protection of register (PSPMPUAC, PSPMPUSA and PSPMPUSE) 0 (0): Stack Pointer Monitor register writing is possible. 1 (1): Stack Pointer Monitor register writing is protected. |
| 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. |