calculating power using prime power problem

[ramaswami]

help about primepower

hi all,
iam calculating power using prime power. i found internal power is
80% of dynamic power where as switching power is only 20%.
iam using 90nm lib. iam manually giving the switching activities of
the pins (calculated from systemC). can any one plz tell me what is
the reason for this...

thanks

 

[asicdesigner]

help about primepower

I think the switching activity you used is very low.

 

[ramaswami]

help about primepower

(asic_designer): no i used switching activity 0.1 to 0.9 then also the percentage of switching power is less.
1)In my design 4000 registers are there and they are consuming most of the total dynamic power. Even if i gave 0 switching activity dynamic power shown by prime power is high and it is mainly internal power..... plz tell me what to do
2) can any one tell me how to apply clock gating in primepower actually i used the command present in the prime power manual
then also no change power.

 

[jimjim2k]

Re: help about primepower

Hi

This picture shows how tech related to static power.

tnx