Using the -clock_vtree_type Option - 2024.2 English - UG904

Vivado Design Suite User Guide: Implementation (UG904)

Document ID
UG904
Release Date
2024-11-14
Version
2024.2 English

The -clock_vtree_type option is used in place_design to specify the type of clock tree to be used. The valid values are balanced, interSLR, and intraSLR. The default value is balanced. This option does not affect clocks using calibrated deskew.

Use the -clock_vtree_type option to select the clock tree that minimizes the clock skew for the types of timing challenges seen in the design:

  • Select intraSLR to minimize clock skew within each SLR
  • Select interSLR to minimize clock skew on paths between SLRs
  • Select balanced for the best compromise between intraSLR and interSLR
Note: Placer clock V-tree type properties are case sensitive. Using the wrong case generates an error message stopping the placer flow. Accepted types are: balanced, interSLR, intraSLR.