Insert Clocking Elements Near the Top Level - 2022.2 English

Versal ACAP Hardware, IP, and Platform Development Methodology Guide (UG1387)

Document ID
UG1387
Release Date
2022-11-16
Version
2022.2 English

Inserting the clocking elements towards the top level allows for easier clock sharing between modules. This sharing might result in fewer clocking resources needed, which helps in resource utilization, improved maximum clock frequency, and power.

Aside from the module the clocks are created in, clock paths should only drive down into modules. Any paths that go through (down from top and then back to top) can create a delta cycle problem in VHDL simulation that is difficult and time consuming to debug.