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| Wednesday, September 08, 2010 |
| Term |
Definition |
| Odd Parity |
Even parity and odd parity are two different parity protocols used to check the integrity of data stored in memory. A memory manufacturer can use either protocol in a memory product. Odd parity adds an additional bit to every byte of data to make the total number of 1s odd. When the byte passes to the CPU, the parity circuit checks the byte to be sure it is still odd. If it is, the data is considered to be valid and the parity bit is stripped from the byte. If instead it registers as even, it is considered to be invalid and a parity error is generated. |
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