Question
Download Solution PDFIn the following truth table, V = 1 if and only if the input is valid.
|
Inputs |
Outputs |
|||||
|
D0 |
D1 |
D2 |
D3 |
X0 |
X1 |
V |
|
0 |
0 |
0 |
0 |
x |
x |
0 |
|
1 |
0 |
0 |
0 |
0 |
0 |
1 |
|
x |
1 |
0 |
0 |
0 |
1 |
1 |
|
x |
x |
1 |
0 |
1 |
0 |
1 |
|
x |
x |
x |
1 |
1 |
1 |
1 |
What function does the truth table represent?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
A multiplexer or MUX is a combination circuit that contains more than one input line, one output line and more than one selection line.
Simple encoder takes 2n input bits and produces n output bits.
Explanation:
V = 1
When input D3 = 1, then it does not care about the input D0, D1, and D2
Output put will be 1, 1
When input D3 = 0 and D2 = 1, then it does not care about the input D0, and D1
Output put will be 1, 0
When input D3 = 0, D2 = 0 and D1 = 1, then it does not care about the input D0,
Output put will be 0, 1
When input D3 = 0, D2 = 0, D1 = 0 and D0 = 1,
Output put will be 0, 0
Here priority has been assigned to input and hence it is a Priority encoder.
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