Programming and debugging (target)
through Serial Wire Debug (SWD)
Virtual COM-port interface to
target via UART
Atmel Data Gateway interface (DGI)
to target via synchronous UART or TWI
Four GPIOs connected to target for
code instrumentation
Digital I/O
Two mechanical buttons (including
one reset button)
One user LED
Four extension headers
Segment LCD display header
USB interface for host and
device function (target)
Touch
One Atmel QTouch® button
Three possible power sources
External power
Embedded debugger USB
Target USB
12MHz crystal
32kHz crystal
The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.