Easy xLogic SuperRelay - NAND with Edge Evaluation

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xLogic SuperRelay User’s Manual

Logic table of the NAND block:

Input 1 Input 2 Input 3 Input 4 Output

0 0 0 0 1

0 0 0 1 1

0 0 1 0 1

0 0 1 1 1

0 1 0 0 1

0 1 0 1 1

0 1 1 0 1

0 1 1 1 1

1 0 0 0 1

1 0 0 1 1

1 0 1 0 1

1 0 1 1 1

1 1 0 0 1

1 1 0 1 1

1 1 1 0 1

1 1 1 1 0

3.2.4 NAND with edge evaluation

The output of a NAND with edge evaluation is only 1 at least one input is 0 and all

inputs were 1 during the last cycle.

The output is set to 1 for the duration of one cycle and must be reset to 0 at least for the

duration of the next cycle before it can be set to 1 again.

A block input that is not used (x) is assigned: x = 1.