16.1 Features

  • SEC-DED ECC Check of Flash and EEPROM
  • Redundant ECC Check Logic
  • Error Injection for Diagnostics
  • In-System Programmable
  • Self-Programming and Bootloader Support
  • Configurable Sections for Write Protection:
    • Boot section for bootloader code or application code
    • Application code section for application code
    • Application data section for application code or data storage
  • Signature Row for Factory-Programmed Data:
    • ID for each device type
    • Serial number for each device
    • Calibration bytes for factory-calibrated peripherals
  • User Row for Application Data:
    • Can be read and written by the application
    • Can be written from UPDI on a locked device
    • Content is kept after a chip erase
  • Boot Row for Boot Data:
    • Only accessible from the boot section
    • Optionally erased through a chip erase