ATJTAGICE2 The AVR® JTAGICE mkII from Atmel® is a powerful development tool for On-chip Debugging of all AVR 8-bit RISC MCUs and AVR32 32-bit DSP/MCUs with IEEE 1149.1 compliant JTAG interface. AVR Boards $329

BiPOM Electronics is a proud ATMEL Consultant for AVR Family of microcontrollers

8-bit AVR:
The JTAGICE mkII also supports devices with debugWIRE Interface. debugWIRE enables on-chip debug of AVR microcontrollers in small pin count packages, using only a single wire for the debug interface.

The AVR Studio online-help contains the most current information and a complete list of supported devices.

32-bit AVR32:
The JTAGICE mkII is supported by the AVR32 Studio.