ECE 461 (Spring 2005) - Homework 9 

Posted April 16
Due in class on April 22
	  

Grading policy

	Answers to only a subset of the questions will be graded for
	correctness of the answer and the procedure. Credit will be
        granted for attempting the other questions.



Readings: Sections 7.1 through 7.6 (except section 7.5-1)
          (NOTE: Readings are revised) 

Problem numbers below refer to the textbook by McCluskey.

(A) For the circuit in Figure P7.3 on page 322, determine the flow
    table.

(B) Construct a flow table that contains an essential hazard. Explain
    why the essential hazard exists. Your flow table should contain
    at least 5 states.

(C) Problem 8.1 for Figure P8.1(a). Note that the circuit has two inputs,
    one of which is the CLOCK.

(D) Using the pair table, determine the equivalence classes for the states
    in the flow table in Table P9.3(a) on page 419.
    Determine the reduced machine.

(E) Implement the synchronous machine specified in Table P9.6 on page 420
    using JK flip-flops.