8.9 BOOTROW - Boot Row
The AVR32EB14/20/28/32 devices have a special 64-byte memory section called the Boot Row (BOOTROW). The BOOTROW can be used for boot loader data and is erased by chip erase.
On a locked device, this section can only be accessed when executing from the BOOT section, making this area ideal for storing device specific information to be seen by the boot loader. Refer to the System Memory Address Map for further details.