218test3sample2

218test3sample2 - ESE218 Test 3 Name _ ID_ Problem 1 (15...

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ESE218 Test 3 Name ___________________________ ID____________________ Problem 1 (15 points) Analyze the synchronous circuit below and obtain the following 1. flip-flop input excitation equations 2. flip-flop characteristic equations 3. state table 4. state diagram 5. complete the timing diagram and find the output sequence (Z) for the given input sequence (X) Based on the state diagram answer the questions 1. what is the role of X? 2. is it a self-correcting design? (explain) 3. is Z a Mealy or Moore output? (explain) J 12 CLK 11 K 15 Q 9 Q 10 PR 14 CL 13 D 2 CLK 3 Q 5 Q 6 4 1 HI HI HI HI 2 3 1 1 2 3 1 2 1 2 3 1 2 3 Q 1 T Q 0 X CLK Z
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2 CLK X Q 1 Q 0 Z
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3 Problem 2 (10 points) The state diagram below describes a synchronous FSM that counts number of changes of input X and generates output Z=1 if that number is a multiple of 4 (it is assumed that input X changes can change between the clock ticks). Design the circuit with D-flip-flops
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This note was uploaded on 03/21/2010 for the course ESE 218 taught by Professor Donetsky during the Spring '08 term at SUNY Stony Brook.

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218test3sample2 - ESE218 Test 3 Name _ ID_ Problem 1 (15...

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