thw_mod5_no2

# thw_mod5_no2 - ECE 270 Introduction to Digital System...

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Unformatted text preview: ECE 270 Introduction to Digital System Design Fall 2011 TakeHomaWork for Module 5 Due November 4, 2011 1. [8 points] Radix addition (base 2) 1 0 0 1 1 + 0 1 1 1 1 1 0 0 1 1 + 1 0 0 1 1 - 0 1 1 1 1 + 1 0 0 0 0 - 0 1 1 1 1 + 0 1 0 1 0 - 2. [12 points] Radix subtraction (base 2) 1 0 0 0 1 - 1 1 1 1 1 - 1 0 0 0 0 - 0 1 0 1 1 - 0 1 0 1 1 - 0 0 0 0 0 - 0 1 0 1 1 - 1 0 0 0 1 - Name: __________________________________________ Signature: ______________________________________ Class No: __ __ __ __ - __ Score: _______ / 30 Your Class No. is the last four digits of your PUID followed by the first character of your last name. ECE 270 Introduction to Digital System Design Fall 2011 3. [10 points] Tired of writing the names of those you want "kicked off the island" on cards, you wish to modernize the voting scheme used on Digital Survivor. Specifically, you would like to design a circuit that tabulates the "stay on the island"/"kick off the island" (yes/no) votes of up to 7 fellow contestants. Armed with only a bucket of full-adder cells (plus 7 switches, some resistors, 3 LEDs, a breadboard, some wires, a battery, and a large pepperoni pizza), you start your Amazing Digital Race. Assume the tribunal can correctly interpret 3-bit binary numbers. HINT: This is sometimes called a "population counting" circuit here we simply want to tabulate the number of inputs that are "1". X CS Y Z X CS Y Z X CS Y Z X CS Y Z ...
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thw_mod5_no2 - ECE 270 Introduction to Digital System...

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