Pcell conditional inclusion of one layer and remove other

Hi Marthand,

Yes.  Which version of the tools are you using?  Are you talking about graphical PCells or SKILL-based PCells?  Either way, it is possible to have a single variable/flag/switch/argument that can control multiple objects within the PCell.  Providing more information will probably yield a better answer.

Best regards,

Lawrence.

Hi Lawrence,

Thanks for the feedback.

            I am using the cadence ic 6.1.5 version.

I wanted to know for Graphical Pcells.

Suppose I want 3 conditions , each one should have different layers ,then in GUI is there a provision for implementing logical "or"

Then when I select one condition, automatically the layers to be present for other conditions should vanish.

Is it possible.

Regards,

Marthand.

Several ways you could do this. You could make the expression in the condition something like "param1 && !param2 && !param3" (this means the shape would only appear if param1 was set and param2 and param2 were not set). Or you could make the expression something like param1==1 for one shape, param1==2 for the second shape and param1==3 for the third shape. You'd probably have to go to Pcell->Parameters->Edit Parameters and change the parameter to be an int rather than boolean.

If you want to have three boolean parameters and have it that if you set one, the others get turned off, you'd need to implement that in a CDF callback - because a pcell cannot change the parameter values on the instance above. But you could implement it by a system of priorities - if param1 had a higher priority than param2 which had a higher priority than param3, then you'd have the shapes:

shape1: conditional is param1
shape2: conditional is !param1 && param2
shape3: conditional is !param1 && !param2 && param3

that way, if param1 is set, shape 2 and shape3 are always off regardless of the values of param2 and param3, and so on.

All depends on what you're trying to achieve!

Regards,

Andrew.

Hi Andrew,

                 Thanks a lot.

This helps.

Thanks and Regards,

Marthand.

 Hi Andrew,

 I tired your suggestion, it works.

peter