Fpga Implementation Of Reversible Logic Gates
P Gowthami · i-manager’s Journal on Electronics Engineering · 2018
The logic symbol of reversible gate is shown in Figure 1 . To design an optimized reversible logic circuit, the parameter which plays a major role are given below (Haghparast et al., 2011). It is the number of reversible gates employed in the implementation of the reversible circuit. These are inputs of a reversible gate which are retained at a fixed value either 0 or 1 to obtain the desired outputs. These inputs are called constant inputs. In reversible logic gate, number of outputs should be kept equal to the number of inputs, whereas in conventional logic gate, inputs and outputs are not identical. Outputs of a reversible gate are not necessary for further operations in the reversible circuit, but they are needed to maintain the reversibility. Since the garbage outputs are not utilized for further computation process, it should be minimum as possible.