Lecture 7 - Webstaff.kmutt.ac.th - kmutt
Lecture 7 - Webstaff.kmutt.ac.th - kmutt
Lecture 7 - Webstaff.kmutt.ac.th - kmutt
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SummaryBCDYou can <strong>th</strong>ink of BCD in terms of column weights in groups of four bits. For an 8-bit BCD number, <strong>th</strong>e columnweights are: 80 40 20 10 8 4 2 1.What are <strong>th</strong>e column weights for <strong>th</strong>e BCD number1000 0011 0101 1001?8000 4000 2000 1000 800 400 200 100 80 40 20 10 8 4 2 1Note <strong>th</strong>at you could add <strong>th</strong>e column weights where <strong>th</strong>ere isa 1 to obtain <strong>th</strong>e decimal number. For <strong>th</strong>is case:8000 + 200 +100 + 40 + 10 + 8 +1 = 8359 10Floyd, Digital Fundamentals, 10 <strong>th</strong> ed© 2009 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved
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