Patent ID: 6208166
Filing Date: 2001-03-27
Classification: H03K

Abstract:
A circuit for performing logic elementary operations between a dual-rail input and a dual-rail output from at least one control terminal, said circuit comprising:means for selecting a mode of operation upon assertion of one or a plurality of signals on one or a plurality of control terminals;means for operating the circuit in a `PASS` logic mode of operation in which the information present on the dual rail input is transferred, unaffected, to the dual-rail output;means for operating the circuit in a `LEFT` logic mode of operation in which the information present on the left rail of the input is duplicated onto the dual-rail output;means for operating the circuit in a `CROSS` logic mode of operation in which the information present on the dual rail input is swapped onto the dual rail-output;means for operating the circuit in a `RIGHT` logic mode of operation in which the information present on the right rail of the input is duplicated onto the dual rail output.