16.3.1.5 Boot Row

The Boot Row is 256 bytes. This section can be used to store various data that are only accessible to the bootloader, such as keys. The Boot Row page is either saved or erased during a chip erase, depending on the FUSE configuration.

The Boot Row is erased/written as ordinary Flash. When erasing the Boot Row, the entire row is erased at once and cannot be accessed from the application code and data sections.