Stats

  • State Suggested Answer
  • Replies 1
  • Answers 1
  • Subscribers 160
  • Views 2263
  • Members are here 0
More Content

constraint region - defining both single-ended and diff pair widths

Jason T

I am using OrCAD PCB Designer Pro 17.4. I need to define different constraints for an area that has both single-ended and differential pair nets. I don't see a way to define a physical constraint set that defines both (assuming the s.e. and diff pair widths need to be different) and I don't see a way to associate more than one PCS with a constraint region, so do I have to draw multiple region boxes to accomplish this? Depending on how the s.e. and diff pair traces are intermingled it seems like that could get ugly.

Thanks - Jason

  • steve
    0

    If you right click on the Region name in CM you can create Region Classes (much the same way as spacing classes. You can then apply a different set of rules for that class. For example, put your power nets in a class called Power_Group then create a Region class and apply a different PCS to that class.

Cadence Guidelines

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.