Apparatus for configuring I/O signal levels of interfacing logic circuits

A system for configuring input/output signal levels of interfacing logic circuits operating at different voltage levels, said system comprising:

• a first logic circuit for operating on a first printed circuit board (PCB) at a first voltage level;
• a second logic circuit for operating on a second PCB at a second voltage level different from said first voltage level;
• a bank of input/output gates located on said second PCB and coupled to said first logic circuit located on said first PCB for interfacing input/output signals between said first and second logic circuits, said bank of input/output gates including a port for setting the operational voltage level thereof, and
• a control circuit coupled to said port and governed by a control signal to configure the operational voltage level of said bank of input/output gates to render said first voltage level of said first logic circuit the same as said operational voltage level of said interfacing input/output signals conducted by said bank of input/output gates located on said second PCB.