Question

Q1: (25%): A. Write a VHDL code to design 4-to-16 decoder using two 3-to-8 decoders as shown in figure, you must: 1- Use case statement to design the 3-to-8 decoder. 2- Use Structural model to design the 4-to-16 decoder from two 3-to-8 decoders. B. Complete the design if we want to add the enable input to the 4-to-16 decoder.

          Q1: (25%):
A. Write a VHDL code to design 4-to-16 decoder
using two 3-to-8 decoders as shown in
figure, you must:
1- Use case statement to design the 3-to-8
decoder.
2- Use Structural model to design the 4-to-16
decoder from two 3-to-8 decoders.
B. Complete the design if we want to add the
enable input to the 4-to-16 decoder.

Q1: (25%):
A. Write a VHDL code to design 4-to-16 decoder
using two 3-to-8 decoders as shown in
figure, you must:
1- Use case statement to design the 3-to-8
decoder.
2- Use Structural model to design the 4-to-16
decoder from two 3-to-8 decoders.
B. Complete the design if we want to add the
enable input to the 4-to-16 decoder.

Added by Linda M.

Computer Science and Information Technology

Trishna Knowledge Systems 2018 Edition

Instant Answer

Solved by Expert Robert Fox

Step 1

The 3-to-8 decoder has 3 input lines and 8 output lines. The enable input is used to activate the decoder. ```vhdl library IEEE; use IEEE.STD_LOGIC_1164.ALL; entity Decoder3to8 is Port ( EN : in STD_LOGIC; A, B, C : in STD_LOGIC; D : Show more…

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Do D Dz 3-to-8 Decoder "Ds EN De D A. Write a VHDL code to design 4-to-16 decoder using two 3-to-8 decoders as shown in figure, you must: 1-Use case statement to design the 3-to-8 decoder. C D Do -Dg D -D. D2 D Du D 2-Use Structural model to design the 4-to-16 decoder from two 3-to-8 decoders Decoder EN B. Complete the design if we want to add the enable input to the 4-to-16 decoder 4-to-16 decoder