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Cascading 1-Bit Comparators

Cascading 1-Bit Comparators. Lecture L6.5. A 1-Bit Comparator. The variable Gout is 1 if x > y or if x = y and Gin = 1. The variable Eout is 1 if x = y and Gin = 0 and Lin = 0. The variable Lout is 1 if x < y or if x = y and Lin = 1. .

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Cascading 1-Bit Comparators

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  1. Cascading 1-Bit Comparators Lecture L6.5

  2. A 1-Bit Comparator The variable Gout is 1 if x > y or if x = y and Gin = 1. The variable Eout is 1 if x = y and Gin = 0 and Lin = 0. The variable Lout is 1 if x < y or if x = y and Lin = 1.

  3. The variable Gout is 1 if x > y or if x = y and Gin = 1. The variable Eout is 1 if x = y and Gin = 0 and Lin = 0. The variable Lout is 1 if x < y or if x = y and Lin = 1.

  4. Gout = x & !y # x & Gin # !y & Gin Eout = !x & !y & !Gin & !Lin # x & y & !Gin & !Lin Lout = !x & y # !x & Lin # y & Lin

  5. A 4-Bit Comparator

  6. Question If x = 1, y = 1, Gin = 1, and Lin = 0, then Gout will be A) 0 B) 1

  7. Question If [x3..x0] = [1,0,1,1] and [y3..y0] = [1,0,0,1], then Gout = [G4..G1] is equal to A)[1,0,1,0] B)[0,0,1,0] C)[1,1,1,0] D)[1,1,0,1] E)none of the above 1 1 1 0

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