• Skip to main content
  • Skip to search
  • Skip to footer
Cadence Home
  • This search text may be transcribed, used, stored, or accessed by our third-party service providers per our Cookie Policy and Privacy Policy.

  1. Community Forums
  2. Allegro X PCB Editor
  3. Is there a way to fix the target net in propagation delay...

Stats

  • State Not Answered
  • Replies 6
  • Subscribers 160
  • Views 10751
  • Members are here 0
More Content

Is there a way to fix the target net in propagation delay?

avant
avant over 3 years ago

I set clock nets as targets in relative propagation delay work sheet.

While reviewing, the target nets changed. Is there a way to fix the target?

  • Cancel
  • Sign in to reply
  • avant
    0 avant over 3 years ago in reply to Schulz Jordan

    Delta refers to how much length to add or subtract from the target length.

    If I have a trace from a pin to say a pullup resistor that I do not want included in the length value, the delta would be the length of the trace to exclude it (positive value). It's a little confusing, you are actually increasing the target length of that particular net. This is an alternate to creating pin pairs and a net schedule. Tolerance is +/- the target length. 

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Verify Answer
    • Cancel
<
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.

© 2025 Cadence Design Systems, Inc. All Rights Reserved.

  • Terms of Use
  • Privacy
  • Cookie Policy
  • US Trademarks
  • Do Not Sell or Share My Personal Information