Combinatorial Logic
Performing logical operations using a truth table.
Description
The Combinatorial Logic block implements a standard truth table for modelling programmable logic matrices (PLA), logic circuits, decision tables and other Boolean (logic) expressions. This block can be used in conjunction with Memory blocks to implement finite automata or triggers.
The Truth table is a list of possible logical states of the block. The number of its lines is determined by the formula , where is the number of input signals u (the number of input signals m = 2 results in 4 lines). The index of each line is determined by the input signals:
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It must be remembered that the input and output signals of this block are the logical constants |
Parameters
Truth table - truth table
matrix
As the value of the Truth table parameter a matrix defining all possible outputs of the block is set. Each row of the matrix contains an output for a different combination of input elements. You must specify the outputs for each combination of input elements. The number of columns is equal to the number of outputs of the block.
Block parameter |
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Values |
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By default |
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