6.12 Write a behavioral-style Verilog module Vr2to4decp_b for the 2- to-4 binary decoder with polarity control shown in Figure 6-3. Use a vector I[1:0] for the select inputs, and a vector Y[0:3] for the outputs. Be sure that your code does not create an “inferred latch."

6.12 Write a behavioral-style Verilog module Vr2to4decp_b for the 2- to-4 binary decoder with polarity control shown in Figure 6-3. Use a vector I[1:0] for the select inputs, and a vector Y[0:3] for the outputs. Be sure that your code does not create an “inferred latch."

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Concept explainers

Latches and Flip Flop

Just like logic gates, the latches and flip-flops are the important elements of an electronic circuit. The logic gates form the important part of combinatorial circuits, while the latches and flip-flops form the essential part of a sequential circuit. Sequential circuits form the important concept of automata theory in electronics and electrical engineering, these circuits are a kind of logic circuit whose output depends on both present input and past inputs, that is, the input history.

Question

• 6.12 Write a behavioral-style Verilog module Vr2to4decp_b for the 2-
to-4 binary decoder with polarity control shown in Eigure 6-3. Use a
vector I[1:0] for the select inputs, and a vector Y[0:3] for the outputs.
Be sure that your code does not create an “inferred latch."

BB
BB
10
(AO)
YO
(DO)
Do
Y1
11
(D1)
(A1)
Y2
(D2)
Y3
(D3)
POL
(A2)
Figure 6-3 A 2-to-4 decoder
with output-polarity control.
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