A priority encoder is a combinational circuit that implements a priority function. The operation of the priority encoder is such that if two or more inputs are equal to 1 at the same time, the input having the highest priority takes precedence. The truth table for a four-input priority encoder is given below. With the use of X's, this condensed truth table with just five rows represents the same information as the usual 16-row truth table. Outputs hputs D 3 D2 D1 Do A₁ A₁ 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 Determine the logic functions A₁ and A
A priority encoder is a combinational circuit that implements a priority function. The operation of the priority encoder is such that if two or more inputs are equal to 1 at the same time, the input having the highest priority takes precedence. The truth table for a four-input priority encoder is given below. With the use of X's, this condensed truth table with just five rows represents the same information as the usual 16-row truth table. Outputs hputs D 3 D2 D1 Do A₁ A₁ 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 Determine the logic functions A₁ and A
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Transcribed Image Text:A priority encoder is a combinational circuit that implements a priority function. The operation of the
priority encoder is such that if two or more inputs are equal to 1 at the same time, the input having the
highest priority takes precedence. The truth table for a four-input priority encoder is given below.
With the use of X's, this condensed truth table with just five rows represents the same information as
the usual 16-row truth table.
Inputs
D 3
D2
D1
Do
A1
Outputs
до
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
Determine the logic functions A1 and A
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