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Archive for October, 2012

You did Clock Domain Crossing (CDC) analysis, but do you have CDC sign-off?

Monday, October 22nd, 2012
You did Clock Domain Crossing (CDC) analysis, but do you have CDC sign-off?
Join us for a European Webinar on October 25
Space is limited.
Reserve your Webinar seat now at:
https://www2.gotomeeting.com/register/592934610
Real Intent’s Meridian Clock Domain Crossing (CDC) software ensures that the signal crossing and integrity of asynchronous clock domains inside a chip are correct.  This webinar will cover the requirements to achieve CDC sign-off.Agenda:

  • Why Simulation and Timing Analysis is not sufficient
  • What’s necessary for sign-off:  Design, Verification, Methodology
  • Requirements for environment setup, full-chip analysis
  • Advanced technology: intent inference and metastability aware formal
  • Question and Answers
Title:   You did Clock Domain Crossing (CDC) analysis, but do you have CDC sign-off?
Date:   Thursday, October 25, 2012
Time:   2:00 PM – 3:00 PM CEST
After registering you will receive a confirmation email containing information about joining the Webinar.

System Requirements

PC-based attendees
Required: Windows® 7, Vista, XP or 2003 Server
Mac®-based attendees
Required: Mac OS® X 10.5 or newer
Mobile attendees
Required: iPhone®, iPad®, Android™ phone or Android tablet

Have you had CDC bugs slip through resulting in late ECOs or chip respins?

Thursday, October 11th, 2012

In late September, I blogged about the results of our DAC survey on CDC bugs, X propagation, constraints.   Now for those of you who don’t know what CDC means, it is an acronym for Clock Domain Crossing.  Lots of different clock domains are used because of the integration of different blocks and IP in modern SoCs.  Not only must CDC be analysed, it is now becoming a sign-off requirement.

In our survey it showed that 62% of the respondents said that CDC bugs resulted in late ECOs. These bugs are affecting design schedules and design teams need to do thorough CDC verification. What are the other 28% doing?  Some design teams tell us that their design methodology is immune to CDC issues.  This is not typical for fabless semi design teams.

Chip Design Magazine has also been running a poll: Have you had CDC bugs slip through resulting in late ECOs or chip respins? on their web-site.  If you go to ChipDesignMag.com and scroll half-down the page and on the left side you will see this:

I have been monitoring this poll for a while and there has not been a lot of recent activity.   Feel free to go to the ChipDesignMag.com web-site and scroll down to cast your vote.   Here are the results so far: (more…)

CST Webinar Series



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