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Logic Circuit Class/Exam2006_2

2006๋…„ 2•™๊ธฐ ๊ธฐ๋ง๊ณ ‚ฌ

  • ๋ถ€๋ถ„  ˆ˜ —†Œ.
1. —ฐŠต๋ฌธ œ 5-18 ๊ณผ ๋˜‘๊ฐ™Œ.
2. ๋‹คŒ๊ณผ ๊ฐ™ด ๋”œ๋ ˆด๋ฅผ ๊ฐ–๋Š” šŒ๋กœ—„œ ˆ๊ธฐ—๋Š” x ๊ฐ€ 1ด๋‹ค. 0ˆผ ๋•Œ x ๊ฐ€ 0œผ๋กœ, 2ˆผ ๋•Œ x ๊ฐ€ 1๋กœ ๋ณ€•œ๋‹ค๊ณ  •  ๊ฒฝšฐ x,y ˜ vector waveform „ ๊ทธ๋ฆฌ‹œ˜ค.
ํฌ๋งท๋ณ€ํ™˜_jb.jpg

3. ๊ฐ•˜๋ก— ๋‚˜˜จ ปค”ผ žŒ๊ธฐ ๋ฌธ œ. ปค”ผ๊ฐ’€ 1dime, ๋™ „€ dime, nickel ๋งŒ ๋ฐ›๋Š” žŒ๊ธฐ. ๊Šค๋ฆ„๋ˆ€ ปค”ผ๊ฐ€ ๋‚˜˜ฌ ๋•Œ๋งŒ ๋‚˜˜ด. X1 ด dime ž…๋ ฅ, X2 ๊ฐ€ nickel ž…๋ ฅ, Y ๊ฐ€ ปค”ผถœ๋ ฅ, Z ๊ฐ€ ๊Šค๋ฆ„๋ˆ ถœ๋ ฅธ šŒ๋กœ „ค๊ณ„•˜‹œ˜ค. ƒƒœ๋Š” 0 ผ๋•Œ๊ฐ€ žŒ๊ธฐ ˆ๊ธฐ ƒƒœด๊ณ  1ผ ๋•Œ๊ฐ€ 5„Šธ๋ฅผ ๊ฐ–๊ณ  žˆ๋Š” ƒƒœ.
  1. D ”Œ๋ฆฌ”Œ๋กญœผ๋กœ „ค๊ณ„•˜‹œ˜ค.
    b. JK ”Œ๋ฆฌ”Œ๋กญœผ๋กœ „ค๊ณ„•˜‹œ˜ค.
4. ปด“จ„†ต‹ —„œ NRZI ๋ฌธ œ. USB ๊ฐ€ NRZI ๋ฐฉ‹„ “ด๋‹ค. ๋‹คŒ๊ณผ ๊ฐ™ด NRZI ๋ฅผ ๋งŒ๋“ ๋‹ค.
๋ฉ”„ง€๊ฐ€ 0 ด๋ฉด NRZI ๊ฐ€ invert ๋˜๊ณ  ๋ฉ”„ง€๊ฐ€ 1ด๋ฉด NRZI ๊ฐ€ œ ง€๋œ๋‹ค.
˜ˆ)
๋ฉ”„ง€ 000100111101000
NRZI 1010010000011010
  1. Find the state diagram by Mealy machine.
    b. Find the state table.
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