Setup Area (Max Delay Analysis) - 2025.2 English - UG906

Vivado Design Suite User Guide: Design Analysis and Closure Techniques (UG906)

Document ID
UG906
Release Date
2025-12-10
Version
2025.2 English

The Setup area of the Design Timing Summary section shows all results related to max delay analysis, including setup, recovery, and data checks.

It includes the following values:

Worst Negative Slack (WNS)
The worst slack across all timing paths analyzed for max delay. This value can be positive or negative.
Total Negative Slack (TNS)
The total of all WNS violations, based on the worst violation per endpoint.
  • Value is 0 ns when all setup-related constraints are met
  • Value is negative when violations exist
Number of Failing Endpoint
The number of endpoints with WNS violations (slack less than 0 ns).
Total Number of Endpoints
The total number of endpoints checked during max delay analysis.