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How to calculate the timing results

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limitless_21

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how will we justify for the following time calculation:


Other End Arrival Time 110.000
- Setup 90.400
+ Phase Shift 794.000
+ CPPR Adjustment 0.000
- Uncertainty 106.000

= Required Time 707.600

- Arrival Time 1308.240

= Slack Time -600.640

Clock Rise Edge 0.000
+ Clock Network Latency (Ideal) 110.000
= Beginpoint Arrival Time 110.000


How is the required time being calculated here as 707.600, when i am calculating it is coming around 710 ns.
please do poin me where am i going wrong ????

thanks
limitless
 

Kindly, post the report if possible for better visibility of the problem.

cheers
 

Arrival Time+Phase Shift-Setup requirements-uncertainty = required time.

So if you plug your numbers, you'll get 707.6. But even if it was 710, you'd get a negative slack, which you should fix.

Or you asking about where the numbers come from?
 
well, dude, lets us put it lil simple. kindly, brief, which check you are performing? setup/hold? first of all, tell that. I have a doubt regarding the formula that you have written. may be am wrong!!! so it would be better if you tell me which check your are performing?

I think that might help, to solve your problem.
 
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    skkode

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