Exceptions Priority with Multiple -through Options Example - 2024.1 English

Vivado Design Suite User Guide: Using Constraints (UG903)

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2024.1 English
> set_max_delay 4 -through [get_pins inst0/I0]
> set_max_delay 5 -through [get_pins inst0/I0] -through [get_pins inst1/I3]

Both exceptions are kept by the timing engine. The more challenging constraint is used for timing analysis. In this example, the 4 ns max delay constraint is used even for paths going through the pin inst1/I3.