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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
    • Reading a CDC Report
      • Anatomy of a Report
      • Triage Order
      • Grouping and Root Causes
      • False Clean and Noise
    • Classic Bug Anatomy
    • Case Studies
  • CDC and RDC Interview Prep30
  • Capstone: Sign Off a Multi-clock Peripheral4
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‹Debug and Case Studies
  1. Topics
  2. CDC & RDC
  3. Debug and Case Studies
  4. Reading a CDC Report

Part 9 · Debug and Case Studies · Advanced

Reading a CDC Report

How a CDC report is organised, the order to work it in, and how to tell a trustworthy report from a misleading one.

  • 4topics
  • 4lessons

The CDC report is the working document of signoff: every crossing the analysis found, classified, with the detail needed to fix or waive each one. Engineers who read it back to front drown in detail; engineers who read it in the right order close reports. This topic teaches the anatomy, the triage order, the grouping habit, and the two ways a report misleads.

Lesson

After it you can...

Anatomy of a Report

Name the three parts of a report and read any crossing entry.

Triage Order

Work setup problems before structural classes before protocol questions.

Grouping and Root Causes

Fold dozens of findings into a handful of root causes.

False Clean and Noise

Spot a suspiciously clean report and a noisy one, and say what to check.

Read them in order, then practise on the violation classes of the tool-flow topic: the categories named there are the rows you will meet in real reports.

Check yourself Why read the summary counts before any crossing detail?

The counts say which classes dominate and whether the setup is sane; detail-first reading spends hours on single crossings that one setup fix would have removed.

Related topics

  • Violation Classes

  • Glossary

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See also

  • Classic Bug Anatomy
  • Case Studies