Atxmega32d4 Au ( Atmel Xmega Avr) Pdi Xmega32d4 32d4 Uart Ic Mcu - Demo Board Accessories - AliExpress
The Atmel AVR Microcontroller: MEGA and XMEGA in Assembly and C (with Student CD-ROM) (Explore Our New Electronic Tech 1st Editions): Huang, Han-Way: 9781133607298: Amazon.com: Books
16-bit microcontroller - ATxmega series - Atmel - general purpose / low-power / programmable