JTAG

The JTAG use five pins to communicate with the target. For further information on how to use the programming and debugging capabilities of the EDBG, see Embedded Debugger.

Table 1. JTAG Connections
Pin on ATmega256RFR2 Function
PF4 JTAG TCK
PF5 JTAG TMS
PF6 JTAG TDO
PF7 JTAG TDI
RSTN RESET