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Unformatted text preview: UC Davis 1 Hussain Al-Asaad U NIVERSITY OF C ALIFORNIA —D AVIS D EPARTMENT OF E LECTRICAL & C OMPUTER E NGINEERING EEC180A — D IGITAL S YSTEMS I Winter 2012 P RACTICE P ROBLEMS — S ET 2 1. Number Representation: Design a combinational circuit that converts a 4-bit one’s complement number X to its corresponding two’s complement number Y . 2. ALU Design: Design a bit slice of the ALU shown below. The ALU performs one of the eight operations (summarized in the table below) on the two data inputs A = A n – 1 ...A and B = B n – 1 ...B according to the values of the selection input S = S 2 S 1 S . 3. Waveforms: Complete the output waveforms of the diagram shown below for the following fliplflops: (a) positive-edge triggered JK flipflop, and (b) negative-edge triggered JK flipflop. C C 1 C 2 C n –1 M S C n S 2 S 1 A B A 1 B 1 A n – 1 B n – 1 F F 1 F n – 1 Slice 0 Slice 1 Slice n – 1 .......
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This note was uploaded on 02/21/2012 for the course EEC 180A taught by Professor Redinbo during the Spring '08 term at UC Davis.
- Spring '08