Question

1) Convert (0.513)10 to octal.

2) Given the two binary numbers X = 1010100 and Y = 1000011, perform the subtraction (a) X - Y and (b) Y - X by using 2’s complements.

4) Simplify the Boolean function and draw the logic diagram to implement the function (i) F(a,b,c,d) = ∑(0,1,9,12,13,14) (ii) F(a,b,c,d) = ∑(0,2,3,5,9,10,15) with don’t care d(a,b,c,d) = ∑(1,3,7,8,11,)

5) Implement the Boolean expression F (A, B, C, D) = _(1, 3, 4,7, 8,12, 13, 14, 15) using 4X1 mux.

6) Write and verify verilog HDL of 4 bit Johnson counter.

7) Design a system that detects the occurrence of 110 or 001. The system input, output signals are given below

X 0 1 1 0 0 0 1 0 0 ;Y 0 0 0 1 0 0 1 0 0. Notice it is in table form but I wrote like that

8) Design a modulo 10 up/down counter with control input. Write a verilog code for your design and a test bench to verify your design.

Answer 1