TIMING-27: Invalid Primary Clock on Hierarchical Pin

TIMING-27: Invalid Primary Clock on Hierarchical Pin - 2021.1 English

Vivado Design Suite User Guide: Design Analysis and Closure Techniques (UG906)

Document ID

UG906

Release Date

2021-06-30

Version

2021.1 English

A primary clock <CLOCK_NAME> is created on an inappropriate internal pin <PIN_NAME>. It is not recommended to create a primary clock on a hierarchical pin when its driver pin has a fanout connected to multiple clock pins.