Question 1: Draw the Block Diagram, VHDL code and truth table for the following using process and if statements.
a. OR Gate
b. 2 Input Comparator
c. 1 of 4 decoder
d. 2 bit adder
e. JK Flip flops
Question 2: The following VHDL code fragment contains erroneous syntax. Re-write the code in its corrected format. Draw the block diagram and truth table. Describe the operation of the circuit described by the code.
Question 3: Identify and write the correct code. Identify and draw table for the circuit.
Question 4: Write the vhdl code for RS FF.
Question 5: Design a 2-bit Gray counter.
Question 6: Draw the state table and determine the logic equations for the inputs of JK flip-flops using Karnaugh maps.
i) Draw the full schematic diagram of the circuit obtained at point i).
ii) Determine the logic equation for the output Y of this FSM.
iii) Add the circuit required to implement this output to the main diagram derived at point ii).
a. Use JK Flip flop
b. Use JK Flip flop
Question 7: Using the 32k x 4 ROM in the figure, create a 64k x 8 ROM.
Question 8: Using the 32k x 4 ROM in the figure, create a 96k x 8 ROM.
Question 9: Using the 32k x 4 ROM in the figure, create a 128k x 4 ROM.
Question 10: Theory Focus Areas
i. Variable vs signal in vhdl
ii. PAL vs GAL
iii. Von-Neuman and Harvard architectures
iv. Building blocks of testbench
v. std_logic and std_logic_vector
vi. VHDL design vs VHDL testbench
vii. VHDL and applications
Question 11: The Boolean functions of a 4-input logic circuit are given as follows:
A(W,X,Y,Z) = Σm(0,2,4,6,8,10,11)
B(W,X,Y,Z) = Σm(0,3,5,7,9,10,11,15)
C(W,X,Y,Z) = Σm(1,6,10,12,14)
D(W,X,Y,Z) = Σm(3,4,5,8,9,10,12)
E(W,X,Y,Z) = Σm(7,9,10,11,13)
F(W,X,Y,Z) = Σm(1,2,6,7,8,10,11)
Question 12: The Boolean functions of a 4-input logic circuit are given as follows:
A(W,X,Y,Z) = Σm(1,4,7,8,10,11)
B(W,X,Y,Z) = Σm(0,3,6,7,9,13,15)
C(W,X,Y,Z) = Σm(0,7,10,11,14)
D(W,X,Y,Z) = Σm(2,4,6,8,9)
E(W,X,Y,Z) = Σm(1,4,10,12,13,14)
Note: All the required figures and required information are attached below:
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Attachment:- VHDL Code Fragment.rar