Technical

How would you describe clock domain crossing and its associated challenges?

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Answers

Anonymous

3 months ago
3.8Strong
Clock domain crossing is when data must cross between one clock domain (area of hardware running on a clock of one given frequency) to another clock domain with a different frequency. Key challenges are maintaining data integrity of any data over the crossing (data is correct, and nothing is missing) and avoiding any metastability from as a result of the crossing.
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Interview question asked to Design Verification Engineers interviewing at Trimble, Dell, Beckman Coulter and others: How would you describe clock domain crossing and its associated challenges?.