Clock Tree Topology - 2021.2 English

When working with clock trees, follow these recommendations:

• Run the report_clock_networks command to show the clock network in detail tree view.
• Utilize clock trees in a way to minimize skew.
• For the outputs of PLLs and MMCMs, use the same clock buffer type to minimize skew.
• Look for unintended cascaded BUFG elements that can introduce additional delay, skew, or both.