WebJun 10, 2024 · The output delay of the PHY is 9ns, which translates into a 9ns input delay … WebLearn how output delay is defined, how to constrain output ports, and how to analyze …

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WebIf the input and output delays reference base clocks or PLL clocks rather than virtual clocks, the intra- and inter-clock transfer clock uncertainties, determined by derive_clock_uncertainty, are incorrectly applied to the I/O ports. WebJul 22, 2024 · if you are looking for set_input_delay & set_output_delay, then here is the answer: set_input_delay is sets input path delays on input ports relative to a clock edge. meaning, if you have. clock period = 10. input delay = 3. Thus, your data will be arrived after 3. Same thing happen when you set "set_output_delay". how are snotties alive

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WebAug 20, 2024 · Try changing the USB port. The convenient USB inputs on the front of desktop computers are notoriously laggy because they’re connected to the motherboard by flimsy little itty-bitty wires in there. USB ports soldered directly onto the mobo do a much better job of quickly handling data. Webset_false_path -from * -to [get_ports { output_port }] (where output_port is a module's top level port assigned to a pin) If Time Quest gives you a diagnostics that not every output port has a delay, you may want to add some dummy delay as well, like this: set_output_delay -clock [get_clocks src_clk] 2 [get_ports { output_port }] WebSpecifies that the delay value should be treated as the minimum delay. Required: No ¶ Specifies the delay value to be applied Required: Yes [get_ports {}] ¶ Specifies the port names or port name regex. Required: Yes Note If neither -min nor -max are specified the delay value is applied to both. set_clock_uncertainty ¶ how are snow and rain formation similar