This section lists the detailed timing paths for each bus skew constraint.
Each endpoint has an associated reference path that you can expand. 
Vivado calculates the bus skew using the following formula:
Actual bus skew =
endpoint relative delay − reference relative delay − relative
CRPR
Figure 1. Example of Detail Path for the First Endpoint and its Reference
Path
Use the following instructions to examine a path:
- Select the path in the report
- View the detailed timing path in the Properties pane
- Click the schematic icon or press F4 to generate the schematic for the endpoint path, the reference path, or both together