Importing DEF in Abstract Generator

A DEF file contains the design-specific information of a circuit and is a representation of the design at any point during the layout process. The DEF file is in ASCII format. DEF conveys logical design data to and physical design data from P&R tools. Logical design data can include internal connectivity (represented by a net list), grouping information, timing parameters and physical constraints. Physical data includes placement locations and orientations, routing geometry data, and logical design changes for backannotation.

1. Choose File – Import – DEF. It displays the Import DEF form.
   The File – Import – DEF command imports a net list in DEF format and updates the design with the information.
   
   
2. The DEF specifies the DEF files to import. You can type in the name manually or Browse for existing files with the.def extension in the current directory.
3. In Default Bin, select the bin to which DEF data is to be imported.
   Cells will be placed in the Default Bin only if they conform to the following criteria:
   • There is a valid layout view.
   • The cell is not a via.
   • The cell is not a site.
   
   If any of this criteria is not met, the cells will be placed in the Ignore bin.
4. Click OK.

Related Topics

Import DEF Form

Return to top