Digital Code conversion from one system to another.
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Here basis methods of digital code conversion are discussed. It talks about differnt types of codes aswell.
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5214-1693458878915-Unit 6 2023 to 2024 academic year assignment (AutoRecovere...
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Eric Nizeyimana's document 2006 from gicumbi to ttc nyamata handball play
this notes have been created
by Eric36 at nyamata ttc
after readings
pe book for y2sme .
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Digital Code conversion from one system to another.
- 1. Number Conversion from one system to another
- 2. ➔ Types of code: 1. Weighted codes 2. Non-Weighted codes 3. Reflective codes 4. Sequential codes 5. Alphanumeric codes 6. Error Detection & correcting codes
- 3. Binary to Gray: ● Invented by Frank Gray. ● Unweighted code. ● Also known as Reflected Binary Code(RBC). ● Two successive value differs only by one bit. It reduces switching operation. ● Use in a K-map.
- 4. Binary conversion to Gray conversion Step 1: Record the MSB as it is. Step 2: Add the MSB to the next bit, record the sum and neglect the carry. Step 3: Repeat the process.
- 5. Gray code to Binary code conversion Step 1:Record the MSB as it is. Step 2:Add to the next bit if Gray code,record the sum and neglect the carry. Step 3:Repeat the process.
- 7. Binary coded decimal(BCD) ● In this code each decimal digit is represented by a 4-bit binary number. ● Positional weights are 8-4-2-1. ● BCD is less efficient than Binary.
- 8. Conversion of Decimal to BCD Example: 1. 17 ==>00010111 2. 156 ==>000101010110 3. 30 ==>00110000 Conversion of BCD to Decimal Example: 1.00011001==>19 2.01000101==>45 3.01010100==>54 25 35 22
- 9. Excess-3 ● Xs-3 or X-3 code is unweighted code. ● 4-bit code.
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