# hw10 - ECEN 248 Introduction to Digital System Design...

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ECEN 248: Introduction to Digital System Design Department of Electrical Engineering Assignment #10 Due Tuesday, December 8, 2009 1. [20 points.] Suppose I want to build a counter which counts from 0 up to 4 (skipping the value 2). When the count reaches 4, my counter then starts counting from 0 to 4 again (always skipping the value 2). In other words, the counter output sequence is 0 1 3 4 0 1 3 4 ··· . The count transitions are made on the rising edge of a CLK signal. Use DFFs for any state elements required by the counter. Assume we want to implement the counter as a Moore machine. Encode the counter states as per the following table: Counter state Encoding 0 00 1 01 3 10 4 11 (a) Can I implement the above with a combinational circuit? If so, state why. If not, state why not. (b) Write down the state transition diagram for the counter. (c) Write down the state transition table from the above. (d) Next write down the minimum SOP for all the NS and output functions.

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## This note was uploaded on 06/29/2011 for the course ECEN 248 taught by Professor Wilcox during the Fall '09 term at Texas A&M University, Corpus Christi.

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hw10 - ECEN 248 Introduction to Digital System Design...

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