vinodkumar
Joined: 05 Oct 2006
Posts: 240
Helped: 10
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 23 Jun 2008 11:16 split poer plane |
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hi all,
i am trying to design pcb for fpga,here i have 3 voltages for spartan-3 VCCINT,vccaux,vcco which should i take as my power plane of all i have one more 5.5 volts on my board.
one of my collegue told split power plane,but iam unable to get the option,plz let me know whre it is in ORCAD cadence layout plus
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kender
Joined: 19 Jun 2005
Posts: 1231
Helped: 88
Location: Stanford, SF Bay Peninsula, California, Earth, Solar System, Milky Way
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24 Jun 2008 4:47 Re: split poer plane |
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Split power planes are simply copper pours in the PWR layer. In the layout go to the layers spreadsheet. If everything is set to defaults, the PWR layer should be set to PLANE. Change it to ROUTING. Draw copper pours in PWR and assign desired power nets to them.
Also, I'd like to invite you to mirror your question in this group: http://tech.groups.yahoo.com/group/OrCADexchange, which is dedicated to OrCAD. Or you could search the archives there. I think, somebody was asking about the split planes in the past.
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