Monday, January 31, 2011

Cyclic Redundancy Checking Ensures Correct Data Communications

Electronic systems must often endure temperature extremes, noise, or other harsh conditions. To ensure correct operation, many DACs implement cyclic redundancy checking (CRC), with 24-bit data augmented with an 8-bit checksum. If the received checksum does not agree with the data, an output pin indicates an error. The controller clears the error and resends the data.


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