Communications

Select the type of communication to be used between the MPLAB ICE 4 and the target. Communication options depend on project device. Some examples are show below.

For details, see Target Connections and Operation.

Table 1. Communications Options - ATtiny MCU
Interface	UPDI
Speed	Select the default value to change. Click on this row to see a range of available speed values under Option Description.
High Voltage Activation Mode	No High Voltage, Simple High Voltage Pulse, User Power Toggle. Click on this row to see definitions of selections under Option Description. See also UPDI High-Voltage Activation Information.

Table 2. Communications Options - ATmega MCU
Interface	debugWire ISP
Speed	Select the default value to change. Click on this row to see a range of available speed values under Option Description. See also Debugging with debugWIRE for AVR® MCUs.

Table 3. Communications Options - SAM MCU
Interface	JTAG SWD - a subset of JTAG
Speed	Select the default value to change. Click on this row to see a range of available speed values under Option Description.

Table 4. Communications Options - PIC32M MCU
JTAG Method	JTAG 2-wire JTAG 4-wire