sp10-sw-sf

# sp10-sw-sf - ECE 2030 A 10:00am 5 problems, 5 pages...

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ECE 2030 A 10:00am Computer Engineering Spring 2010 5 problems, 5 pages Final Exam Solutions Cinco de Mayo 2010 Problem 1 (3 parts, 24 points) Decoding Decoders Part A (6 points) Define a 1 to 2 decoder by completing the behavior table. IN EN O0 O1 X 0 0 0 0 1 1 0 1 1 0 1 IN EN O0 O1 1 to 2 decoder Part B (8 points) Implement a 1 to 2 decoder using basic gates. Assume only true (non- complemented) inputs are available. Label all inputs and outputs. Part C (10 points) Using only the three 1 to 2 decoders shown below, implement a 2 to 4 decoder with an enable. Label the decoder inputs (IN 1 , IN 0 , EN) and outputs (O0, O1, O2, O3). IN EN O0 O1 1 to 2 decoder IN EN O0 O1 1 to 2 decoder IN EN O0 O1 1 to 2 decoder O0 O1 O2 O3 IN0 IN1 EN 1

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ECE 2030 A 10:00am Computer Engineering Spring 2010 5 problems, 5 pages Final Exam Solutions Cinco de Mayo 2010 Problem 2 (4 parts, 30 points) Design Fiesta Complete each design below. Be sure to label all signals. Part A: Implement the following expression using N and P type switches. Out X = A B C ⋅ D Part B: Implement the following behavior using only pass gates and inverters. X Y Z Z A 0 Q o Q o A 1 A A Part C: Determine the appropriate expression for this mixed logic design. How many transistors are required? Out = A B C D E # transistors = 8 + 6 + 4 + 4 x 2 = 26T Part D: Reimplement the design in Part C using only NAND and NOT gates. How many transistors are required? # transistors = 6 + 2 x 4 + 2 x 2 = 18T 2
ECE 2030 A 10:00am Computer Engineering Spring 2010 5 problems, 5 pages Final Exam Solutions Cinco de Mayo 2010 Problem 3 (1 part, 25 points) Assembly Programming Part A (25 points) Complete this subroutine that searches an array of 100 integers beginning at

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## This note was uploaded on 08/23/2010 for the course EE 2030 taught by Professor Wills during the Spring '10 term at Georgia Tech.

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sp10-sw-sf - ECE 2030 A 10:00am 5 problems, 5 pages...

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