Encoders What would a standard 4to2bit encoder with validato

Encoders: What would a standard 4-to-2-bit encoder with validator (V) look like? Create the truth table Draw a circuit diagram

Solution

The above explanation is called Priorty Encoder where when two or more inputs are given at the same time, the input having the highest priority will take precedence.The truth table is shown below where the highest-priority inputs are to the left and \"x\" indicates an irrelevant value,the validator V indicates if the input is valid.

I3	I2	I1	I0	O1	O0	V
0	0	0	0	x	x	0
0	0	0	1	0	0	1
0	0	1	x	0	1	1
0	1	x	x	1	0	1
1	x	x	x	1	1	1