The AVR JTAGICE mkII is a powerful development tool for 8- and 32-bit AVR microcontrollers from Atmel. It supports both on-chip debugging and controller programming via various interfaces.

The JTAGICE mkII supports the following programming modes:

• SPI
• JTAG
• PDI
• aWire

Debugging is supported via the following interfaces:

• debugWIRE
• JTAG
• PDI
• aWIRE