The algorithm for writing the Lock bits is as follows:
- 1.Write the WORD_WRITE command to the NVMCMD register.
- 2.Write the lock bits value to the Non-Volatile Memory Lock Byte location. This is
the low byte of the Non- Volatile Memory Lock Word.
- 3.Start the NVM Lock Bit write operation by writing a dummy byte to the high byte
of the NVM Lock Word location.
- 4.Wait until the NVMBSY bit has been cleared.