Atmel ATSAM4SD32C microcontroller
Embedded debugger (EDBG)
USB interface
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 SPI or TWI
Four GPIOs connected to target for code instrumentation
Digital I/O
Two mechanical buttons (user and reset button)
One user LED
Three extension headers
LCD display header
USB interface for host and device function (target)
2Gb NAND Flash for non-volatile storage
SD card connector
Adjustable analog reference
Three possible power sources
External power
Embedded debugger USB
Target USB
12MHz crystal
32kHz crystal