Features
•
USB DFU boot loaders, version 1.1.0
•
Same feature set as version 1.0.3
•
These boot loaders do not use any general purpose fuses
•
USB protocol
– Based on the USB device firmware upgrade (DFU) class
– Auto-baud (8, 12, and 16MHz crystal on Osc0)
•
In-system programming (ISP)
– Configurable I/O start conditions (default is pressing the joystick on
EVK1100
and
, SW2 button on
, PB0 button on
Atmel UC3C-EK, HBUTTON0 button on Atmel UC3-C2-Xplained board
) stored in
user page. Protected by 8-bit CRC
– Can be forced by non-volatile configuration bits stored in user page. Protected by
8-bit CRC
– Read/write, on-chip flash memories
– Read device ID
– Full chip erase
– Start application command
32166A–AVR32806–06/11
Atmel UC3 32-bit
Microcontroller
AVR UC3
USB
DFU Boot
Loader, Version
1.1.0 and Higher