Adding another pair of VDD and VSS in ICC2

[NeilDegruth]

Hello,
I'm using ICC2 in my project and I want to add more VDD and VSS ports for the same power mesh. I've tried adding new power ports in UPF but didn't work and couldn't find a solution for my case in Synopsys Solvnet? What should I do?

 

[ThisIsNotSam]

you don't need more "ports", you need to instantiate more IO cells.

 

[NeilDegruth]

you don't need more "ports", you need to instantiate more IO cells.

Thanks for your answer. So what should I do while designing large subblocks? Is one single supply pair enough to feed all standard cells?

 

[ThisIsNotSam]

you have to calculate how much power it draws and how to size the *entire* power grid accordingly. there is no notion of IO cell ratio to block size, generally. the power grid is likely shared between many blocks unless you have individual power islands.