The AVR UC3 C0 series datasheet
The AT32UC3C-EK Schematics and Assembly bottom/top views
The AT32UC3C-EK Getting Started document
The AVRMC300 Getting Started
The 32-bit AVR UC3 C series Schematic Checklist
The AVR Software Framework
All pre-loaded firmware source code is available in the AVR Software Framework version 2.0 or higher.
Debuggers