Viewing PEX results of a net clicked in the layout

Document created by rick_sedlak on Sep 25, 2012
Version 1Show Document
  • View in full screen mode

Viewing PEX results of a net clicked in the layout

  

 

Using a layout viewer, e.g.

  

 

    Calibre DESIGNrev Layout Viewer

    IC Station

    Virtuoso

  

 

Through the Calibre menu

 

  

Invoke Calibre Interactive to allow “Run_PEX

 

  

Before choosing “Run_PEX

 

  

Request a net summary report like this:

 

  

  Outputs -> Reports -> Net Summary

  

 

image001.jpg

 

  
Now click:  “Run PEX”

 

Once Calibre xRC has completed the “Run_PEX” event.

 

Open the Finder in Calibre Interactive

using the View pull down menu:  

  

image002.jpg

 

   

In the Finder panel, locate item  4. Object’s Name

Click the icon that looks like a layout.

  

This allows you to populate the Object’s Name field

by clicking on a net in the layout.  
  
  

image003.jpg

   
Clicking on the layout icon in item 4.
in the finder panel gives this:

image004.jpg

Clicking on the layout net of interest gives the Object Selection box:

image005.jpg

Choosing one item of interest in the Object Selection box:
  
image006.jpg
  

Results in this:

image007.jpg

Open the Plus sign next to the Net.
  

Next open the Source Net plus sign showing the corresponding Layout Net.

  
image008.jpg
  
Click on the “N” next to “Show Net Parasitics”.

  
The net of interest is now shown highlighted in the PEX listing.

   

The PEX listing shows Layout and Source Net names, and net parasitics:
  
image009.jpg
  

You can browse further in the parasitic elements.

Expand the plus signs for the R, C and CC parasitic elements.

Right click on a specific R or C or CC element

and highlight it in the layout. 
   

This browsing allows you to see the actual layout shape for which

specific R or C parasitic elements were computed.

   
For more detail on the net of interest

consult the   my_net_summary.rpt   file

that you requested be produced above.

   

The GUI setting:

   

   Outputs -> Reports -> Net Summary -> Net Summary Report -> my_net_summary.rpt

   

produces this rule to be used in the “Run PEX” action.

   

  PEX REPORT NETSUMMARY "my_net_summary.rpt" FULL DETAIL SCALE 1 COLUMNS ADVANCED

   

The results appear as follows:

   
image010.jpg
   

For more detail, consult the

   

   Calibre Interactive and Calibre RVE User’s Manual

   

Section:

   

   Using Calibre RVE for PEX

 

   

Attachments

    Outcomes