The output of an NOR (NOT OR) function is only 1 if all inputs are 0 (open). When one of the inputs is on (logical 1 state), the output is off.
A block input that is not used (x) is assigned: x = 0.
NOR function logic table
|
Input 1 |
Input 2 |
Input 3 |
Input 4 |
Output |
|---|---|---|---|---|
|
0 |
0 |
0 |
0 |
1 |
|
0 |
0 |
0 |
1 |
0 |
|
0 |
0 |
1 |
0 |
0 |
|
0 |
0 |
1 |
1 |
0 |
|
0 |
1 |
0 |
0 |
0 |
|
0 |
1 |
0 |
1 |
0 |
|
0 |
1 |
1 |
0 |
0 |
|
0 |
1 |
1 |
1 |
0 |
|
1 |
0 |
0 |
0 |
0 |
|
1 |
0 |
0 |
1 |
0 |
|
1 |
0 |
1 |
0 |
0 |
|
1 |
0 |
1 |
1 |
0 |
|
1 |
1 |
0 |
0 |
0 |
|
1 |
1 |
0 |
1 |
0 |
|
1 |
1 |
1 |
0 |
0 |
|
1 |
1 |
1 |
1 |
0 |