Logical XOR Gate

The XOR gate is commonly used as a difference detector since the output is asserted when the two inputs do not match. Sometimes the XOR gate is used as a programmable logic inverter where one input will force the other input to invert. In order to use the tile as a standard inverter, The B input has been normalazed to a logic “1”. This forces a logic inversion from input A to the output when no patch cable is inserted into input B.

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