hwk03_s07 - penalty if not stapled Name Section Score...

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Section: Score: Homework Set 3 Due Wednesday, February 7, 2007 at 3pm You are required to complete the assignment on these sheets. If you need extra space, make a note and continue your work on the back. If you need more space, include an extra sheet of paper. For full credit, you must staple the assignment. Problem 3.0 Do Week #3 Mallard lessons and webquizzes by 3 pm Tuesday, February 6, 2007. Problem 3.1 Consider a network N which receives as input an 8-bit even parity ASCII encoding a 7 a 6 a 5 a 4 a 3 a 2 a 1 a 0 . The leftmost bit (a 7 ) corresponds to an even parity bit; i.e., a 7 is chosen such that the total number of 1's in a 7 a 6 a 5 a 4 a 3 a 2 a 1 a 0 is even. The remaining seven bits a 6 a 5 a 4 a 3 a 2 a 1 a 0 correspond to the ASCII encoding of a symbol. Note: You may use any types of gates you wish: AND, OR, NOT, NAND, NOR, XOR. More than two inputs are permitted to AND, OR, NAND and NOR gates. However, XOR gates are restricted to two inputs. a. Draw a circuit to compute p, where p = 1 if and only if an error is detected. (For example, if 01101110 is received, then p = 1 because the total number of 1's is odd, thus indicating an error. Note that any one of the bits could be wrong!)
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This note was uploaded on 06/21/2011 for the course ECE 290 taught by Professor Staff during the Spring '08 term at University of Illinois, Urbana Champaign.

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hwk03_s07 - penalty if not stapled Name Section Score...

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