8.9 USERROW - User Row

The AVR32LA14/20/28/32 devices have a special 64B memory section called the User Row (USERROW). The User Row can be used for end-of-production data and is not affected by a chip erase. It can be written by the Unified Program and Debug Interface (UPDI) even if the device is locked, enabling storage of final configuration data without having access to any other memory. When the device is locked, UPDI is not allowed to read the contents of the User Row.

The CPU can read from and write to this memory as an ordinary Flash. Refer to the System Memory Address Map for further details.