8.2.1 Write Protection Settings

  • Application Block Write Protection: The WRTAPP Configuration bit is used to write-protect the Application Block. Refer to the “Memory Organization” chapter for more details about the Application Block.
  • Storage Area Flash (SAF) Write Protection: The WRTSAF Configuration bit is used to write-protect the Storage Area Flash. Refer to the “Memory Organization” chapter for more details about the Storage Area Flash.
  • DATA EEPROM Write Protection: The WRTD Configuration bit is used to write-protect the Data EEPROM.
  • Configuration Registers Write Protection: The WRTC Configuration bit is used to write-protect the Configuration Registers.
  • Boot Block Write Protection: The WRTB Configuration bit is used to write-protect the Boot Block. Refer to the “Memory Organization” chapter for more details about the Boot Block.
Important: When write protection is enabled, write operations to the corresponding memory location through ICSP and NVM interfaces are inhibited until a Bulk Erase operation is performed.