[SOLVED] How to find the arrival time of each cell in a design using PrimeTime

[gepinita]

Hello,

I would like to know if it's possible to find the arrival time of each cell in a design using PrimeTime.
Thank you in advance

 

[yadavvlsi]

Re: Arrival Time PrimeTime

Yes, you can. But you have to script it.

 

[sam536]

Re: Arrival Time PrimeTime

In PrimeTime, the arrival times for all pins are stored with attribute called arrival_window.

By default, the arrival times are only saved at path endpoints (D pin of the FF and Output ports) to save the memory consumption and run time .
To save this data on all pins before starting STA through PT set the below variable.
set the timing_save_pin_arrival_and_slack variable to true.


After update_timing , you can get any pin arrival times using below command.

pt_shell> get_attribute [get_pins X/Y/Z] arrival_window .

Which will give, min and max values for rise and fall delays times.

Regards, Sam

 

[gepinita]

Re: Arrival Time PrimeTime

Thank you sam536. That's what i needed.

- - - Updated - - -

Thank you sam536. That's what i needed.