From AVRFreaks Wiki
Overview
The STK1000 is a starter kit and development system for the AVR32 Application Processor from Atmel Corporation. It is equipped with a rich set of memories and peripherals, and will hopefully allow you to try out the full potential of the AVR32 devices before you make your own PCB.
The starter kit requires two boards to work, a motherboard (STK1000) holding memory and peripherals and a daughter board holding the CPU. Please note that the daughter board is described in a separate user manual.
Introduction
Hardware description
Peripherals
Expansion capabilities
Interfaces