Hold Area (Min 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 Hold area of the Design Timing Summary shows all results related to min delay analysis, including hold, removal, and data checks.

It includes the following values:

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