Discussion Solutions 7

Discussion Solutions 7 - Discussion Session #7 Problem 1:...

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Discussion Session #7 Problem 1: (a) For the following sequential network, find the next-state equation or map for each flip-flop. Use these next-state equations or maps, construct a (Moore) state table and graph for the network. (b) What is the output sequence when the input sequence is X = 01100? (c) Draw a timing diagram for the input sequence in (b). Show Pc, X, A, B, and Z. Assume that the input changes between clock pulses. Solution 1: (a) 0 , 1 , 0 ) ( )] ( ) [( = = = = = = = + = A A A A A A K B J x B K B J x B x K B x B x J A K J x K J x xA A x K J B B B B B B = = = = = = = + = = 1 0 0 ) (
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Next State (A + B + ) Present Output Present State AB x=0 x=1 Z= ) ( B A + =AB 00 00 10 0 01 11 01 0 10 10 11 0 11 01 10 1 (b) Assuming initial state is S 0 X 0 1 1 0 0 Z 0 0 0 1 0 1
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(c) P C 1 1 X 0 0 0 A B 1 1 Z 0 0 0 0 Problem 2: A Mealy Sequential Network has 1 input, 1 output and 2 flip-flops. The timing chart is displayed in the following figure: Construct a state table and a state graph for the network
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Discussion Solutions 7 - Discussion Session #7 Problem 1:...

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