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Course contents

  • How to Use This Course
  • Reading Path
  • CDC/RDC Glossary
  • CDC/RDC Metrics Reference
  • CDC/RDC Interview Prep
  • CDC/RDC Signoff Cheatsheet
  • Clock Domains and Failure Modes8
  • Metastability and Synchronizers16
  • CDC Protocols and Handshakes16
  • Reconvergence and Gray Coding16
  • Reset Domain Crossing16
  • Architecture and Design Rules16
  • CDC Signoff Methodology24
  • RDC Signoff16
  • Debug and Case Studies11
  • CDC and RDC Interview Prep30
    • CDC/RDC Whiteboard Framework
    • CDC/RDC Framework Drills
    • Scenario: Metastability Bug
    • Scenario: Metastability Escape in Silicon Bring-up
    • Scenario: Async FIFO Pointer Mismatch
    • Scenario: Waiver Debate
    • Scenario: RDC Waiver Under Tapeout Pressure
    • CDC/RDC Interview Q&A Bank
      • Fundamentals Q&A
      • Protocols and FIFO Q&A
      • Reconvergence and Multi-Bit Q&A
      • Reset and RDC Q&A
      • Signoff and Methodology Q&A
    • CDC/RDC Interview Q&A Bank (Expanded)
  • Capstone: Sign Off a Multi-clock Peripheral4
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‹CDC and RDC Interview Prep
  1. Topics
  2. CDC & RDC
  3. CDC and RDC Interview Prep
  4. CDC/RDC Interview Q&A Bank

Part 10 · Interview Prep · All levels

CDC/RDC Interview Q&A Bank

Core interview questions with bad, better and strong answers across fundamentals, protocols, reconvergence, resets and signoff.

  • 5topics
  • 5lessons

Thirty-two questions across five lessons, each with a bad, a better and a strong answer, the testing note, follow-ups, the trap, and the evidence to cite. Every question follows the Assumption, Mechanism, Trade-off, Evidence habit from the whiteboard framework, and every lesson marks what a 4 sounds like on its hardest question using the rubric.

Lesson

After it you can...

Fundamentals Q&A

Answer seven metastability, crossing and simulation questions at level 3 or better.

Protocols and FIFO Q&A

Answer seven pulse, handshake and FIFO questions with spacing and depth arguments.

Reconvergence and Multi-Bit Q&A

Answer six Gray code, reconvergence and bus-strategy questions.

Reset and RDC Q&A

Answer six reset synchroniser, sequencing and RDC questions.

Signoff and Methodology Q&A

Answer six structural, formal, waiver and review-gate questions.

Practise by covering the better and strong answers, speaking for two minutes, then scoring yourself. Each answer points to the lesson that teaches the idea, so a weak answer tells you exactly what to re-read.

Check yourself How should you use the bad answers in this bank?

As recognition training: bad answers are the plausible sentences candidates actually say under pressure. Learn to hear them in your own speech and replace them with the mechanism before the interviewer has to.

Related topics

  • Next: Q&A Bank (Expanded)

PreviousNext: Fundamentals Q&A

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See also

  • CDC/RDC Whiteboard Framework
  • CDC/RDC Framework Drills
  • Scenario: Metastability Bug