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Hierarchy Editor - Change library

The Setlaz

Hi,

 

I have a question regarding Hierarchy Editor-

Is it possible to change a cell / instance library using Hierarchy Editor ?

Question hold for Cadence 6.15.162 / 6.16.x / 12.10.500.

 

According to the documentation, it seems it is possible through the Library Bindings per Cells/Instances but I can't figure how to use it properly. It works just fine for switching views but I'd like to be able to switch library too.

 

Thanks,

Damien

Parents

  • No, you can't do this (in general). Only cellViews which don't have a "hard" library binding can have their library binding influenced. Schematic views have a hard library and cell binding - and only the view can be altered. For Verilog textual views, these have a hard cell binding, and the library can be changed (as can the view) - this is because Verilog doesn't have a concept of libraries (really).

    So you can control the binding for Verilog textual views by setting either a global library list or an inherited library list (this can be enabled in the cell or instance table, or in the tree view by doing Right Mouse->Inherited Lib List). This then affects the order of libraries bound from that cell or instance (or occurrence if it's an occurrence binding) downwards, but only for instances that have a "free" library binding.

    Regards,

    Andrew.

Reply

  • No, you can't do this (in general). Only cellViews which don't have a "hard" library binding can have their library binding influenced. Schematic views have a hard library and cell binding - and only the view can be altered. For Verilog textual views, these have a hard cell binding, and the library can be changed (as can the view) - this is because Verilog doesn't have a concept of libraries (really).

    So you can control the binding for Verilog textual views by setting either a global library list or an inherited library list (this can be enabled in the cell or instance table, or in the tree view by doing Right Mouse->Inherited Lib List). This then affects the order of libraries bound from that cell or instance (or occurrence if it's an occurrence binding) downwards, but only for instances that have a "free" library binding.

    Regards,

    Andrew.

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