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ee101_hw8

# ee101_hw8 - EE 101 Homework 8 Fall 07 Redekopp Name Due...

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1 EE 101 Homework 8 Fall ’07 Redekopp Name: _________________________________________ Lecture 9:30 / 12:30 / 2:00 Due: Tues. Nov. 20 th in class Score: ________ Show work to get full credit. Remember, use on only one side of the paper and staple them together. Only use a calculator to CHECK your work, not to DO your work. 1. (15 pts.) Analyze the sequential circuit below that implements a 4-bit sequence checker. Find the state diagram and identify what sequence this circuit is checking for, then complete the waveform (Notice when the state machine comes out of reset). Be sure to show your steps for obtaining the state diagram. Use the following state assignment: Q1,Q0 State Name 00 SInit 01 SA 10 SC 11 SB R SQ Q CLK /PRE /CLR /RESET Q1 1 R Q CLK /PRE /CLR /RESET Q0 1 X X X X F X CLK CLK The circuit is checking for the sequence: ________ CLK /RESET STATE F SInit X

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2 2. (10 pts.) Analyze the sequential circuit below that implements a 5-bit sequence checker. Find the state diagram and identify what sequence this circuit is checking for. Be sure to show your steps for obtaining the state diagram. Use the following state assignment: DQ Q CLK /PRE /CLR /RESET Q1 1 Q CLK /PRE /CLR /RESET Q0 1 F Q2 CLK CLK Q CLK /PRE /CLR /RESET Q2 1 CLK Q1 X Q1 Q2 X X Q0 Q2 X X X Q0 Q1 The circuit is checking for the sequence: ________ 3. (10 pts.) Analyze the following sequential circuit below and find the state diagram. Show your steps in finding the state diagram.
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ee101_hw8 - EE 101 Homework 8 Fall 07 Redekopp Name Due...

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