Digilent's Pmod LVLSHFT digital logic level shifter module is ideal for users who want to supply logic signals following a 3.3 V CMOS standard but have an alternate logic level output that is used for other applications such as JTAG programming.

The Pmod LVLSHFT communicates with the host board via GPIO. Users can supply any form of digital signals to either end of the Pmod and have them translated to the other voltage level. Switches are provided to indicate the direction of the voltage translation. A switch pushed to the left side (green) towards the pin header translates voltages from V_CCB to V_CCA; a switch on the right side (yellow) towards the JTAG header translates from V_CCA to V_CCB. Users can use a small object such as a pen or a screwdriver to adjust the switches for the direction of the voltage translation.