Product Support: USB STK200 AVR Kit
Product: USB STK200 AVR KitAVR Microcontroller Support
The STK200 board has socket support all 8, 20, 28 and 40-pin AVR microcontrollers. It does not have board support for ATmega128 and other TQFP64 devices - please see STK300ICE-PS.
The ISP will program all ATmega and ATtiny AVR microcontrollers except ATmega103, including ATmega128 etc.
Product: USB STK200 AVR KitPORT C on STK200 is not working
PORTC is used by JTAG interface. If JTAG is enabled half the port cannot be used as general I/O. To switch off JTAG disable JTAGEN fuse in Fuses screen of AVR ISP. But ICE will no longer work until you re-enable JTAG.