HW7-sol

# HW7-sol - SOLUTIONS TO HOMEWORK 7 Problem 1 (a) G1 G2 P1 =...

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SOLUTIONS TO HOMEWORK 7 Problem 1 (a) G1 G2 P1 = (S0 S1 S2 S4 S5) (S3 S6) 11 12 12 12 11 11 11 G1 G2 G3 P2 = (S0 S5) (S1 S2 S4) (S3 S6) 12 12 13 23 23 12 12 P3 = (S0 S5) (S1) (S2 S4) (S3 S6) Mr. Nary’s state table can be reduced to Present State Next State OUTPUT x = 0 x = 1 x = 0 x = 1 S0 S0 S1 0 0 S1 S0 S3 0 0 S2 S2 S3 0 0 S3 S0 S1 1 0 Compare the above table with Mr. Ipflop’s design, if a = S0, b = S1, c = S3, we do not have equivalent state for S2. Hence, Mr. Ipflop is incorrect. (b) If the circuit always started in state S0, from Mr. Nary's state table, we will never reach state S2 and S4. Thus, S2 and S4 can be removed and Mr. Ipflop's design is correct.

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Problem 2

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Problem 3 The BCD-to-Roman sequential code converter cannot be designed according to table shown in Problem 3 specs, because at t0, correct value of the Roman output can not be known based on on the input value at t0. In fact, the correct value of the Roman output at t0 depends on the future input values at t1, t2 and t3. Problem 4
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## This note was uploaded on 06/04/2010 for the course EE 2301 taught by Professor Larrykinney during the Spring '09 term at Minnesota.

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HW7-sol - SOLUTIONS TO HOMEWORK 7 Problem 1 (a) G1 G2 P1 =...

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