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# hw5s - ENGRD2300 Introduction to Digital Logic Fall 2008...

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ENGRD2300: Introduction to Digital Logic Fall 2008 Homework 5 Solutions Problem 1. Wakerly Drill Exercise 7.12 Excitation and output equations: D1= Q1 + Q2 D2= Q2 ·X Z=Q1+ Q2 Excitation table: EN Q1 Q2 0 1 00 10 11 01 10 10 10 00 01 11 10 10 D1 D2 Transition table: EN Q1 Q2 0 1 00 10 11 01 10 10 10 00 01 11 10 10 Q1* Q2* State/output table: EN S 0 1 Z A C D 1 B C C 0 C A B 1 D C C 1 S* 1

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ENGRD2300: Introduction to Digital Logic Fall 2008 Problem 2. Wakerly Drill Exercise 7.19 Excitation equations: D1= X D2=(Q1+ Y)·Q3 D3= Q2 ·Y + Q1 Excitation table: X Y Q1 Q2 Q3 00 01 11 10 000 001 011 111 101 001 001 001 101 101 010 001 011 111 101 011 001 001 101 101 100 010 011 111 110 101 000 001 101 100 110 010 010 110 110 111 000 000 100 100 D1 D2 D3 Transition table: X Y Q1 Q2 Q3 00 01 11 10 000 001 011 111 101 001 001 001 101 101 010 001 011 111 101 011 001 001 101 101 100 010 011 111 110 101 000 001 101 100 110 010 010 110 110 111 000 000 100 100 Q1* Q2* Q3* 2
ENGRD2300: Introduction to Digital Logic Fall 2008 State table: XY S 00 01 11 10 A B D H F B B B F F C B D H F D B B F F E C D H G F A B F E G C C G G H A A E E S* 3

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