To filter the source clocks displayed in the Clock Interaction report:
- Click on the settings button to display the Clock Visibility.
- Select the source clocks to display. The list of destination clocks that are displayed in the table is automatically derived from the selected source clocks.
The Clock Visibility filter reduces the matrix complexity by limiting the number of clocks, but does not reduce the number of clock interactions reported in the table below the matrix. You can also show and hide the clocks that do not directly time a logical path in the design by clicking the Hide Unused Clocks button in the toolbar. Because these clocks do not contribute to WNS/TNS/WHS/THS computation, they are hidden by default.
Figure 1. Clock Interaction View Layers