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layout instances name connected in a selected net.

marbs

Hello All,

How to display all the layout instances name in CIW that is connected

in the selected net in layout  ?  

 For example, if I select a net25 in the layout, in CIW, output will be,

net25 is connected in Q1-c , Q2b, Q3e .

 

Thanks in advance,

 

Marbs 

 

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  • Andrew Beckett

     I'm afraid I don't know of a way of accessing this kind of information from Virtuoso Layout XL - it's known internally. In IC613/IC614 you could probably inspect the markers used by the annotation browser for showing incomplete nets, maybe.

    Otherwise you'd probably have to use some dbGetOverlaps() type function to see if the pin figures associated with the terminal associated with each instTerm on the net are covered by a shape which is on the same net. Even then, it wouldn't tell you whether there are gaps in the routing - in that case, how would you decide which are connected and which aren't?

    Regards,

    Andrew.

Reply
  • Andrew Beckett

     I'm afraid I don't know of a way of accessing this kind of information from Virtuoso Layout XL - it's known internally. In IC613/IC614 you could probably inspect the markers used by the annotation browser for showing incomplete nets, maybe.

    Otherwise you'd probably have to use some dbGetOverlaps() type function to see if the pin figures associated with the terminal associated with each instTerm on the net are covered by a shape which is on the same net. Even then, it wouldn't tell you whether there are gaps in the routing - in that case, how would you decide which are connected and which aren't?

    Regards,

    Andrew.

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