TMC-20312: Paths Failing Hold Analysis with Global Routing in Data Path

Description

Violation of this rule identifies hold failing paths that use global routing resources in their datapath. As compared to local routing resources global resources do not allow for delay to be added for hold.

Parameters

Name Description Type Default Value Min Value Max Value
maximum_hold_slack A violation is reported for timing paths that have a hold slack below the value of this parameter. double 0.0    

Recommendation

The associated node on the data path should be demoted to local routing using the QSF "set_instance_assignment -name GLOBAL_SIGNAL OFF -to <instance_name>".

Severity

Medium

Device Family

  • Intel® Stratix® 10
  • Intel® Agilex™
  • Intel® Arria® 10
  • Intel® Cyclone® 10 GX