169 lines
4.4 KiB
HTML
169 lines
4.4 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!--Converted with LaTeX2HTML 2012 (1.2)
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original version by: Nikos Drakos, CBLU, University of Leeds
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* revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan
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* with significant contributions from:
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Jens Lippmann, Marek Rouchal, Martin Wilck and others -->
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<HTML>
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<HEAD>
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<TITLE>PowerRing</TITLE>
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<META NAME="description" CONTENT="PowerRing">
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<META NAME="keywords" CONTENT="stratus">
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<META NAME="resource-type" CONTENT="document">
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<META NAME="distribution" CONTENT="global">
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<BODY >
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<table align="center" width="100%" cellpadding="0" cellspacing="2">
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<tr><td class="navigation" align="left" width="33%"><B>Previous</B></td>
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<td class="navigation" align="left" width="33%"><A HREF="node32.html">Alimentation connectors</A></td>
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<td class="navigation" align="center" width="34%"><A HREF="node20.html">Place and Route</A></td>
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<td class="navigation" align="right" width="33%"><A HREF="node34.html">RouteCk</A></td>
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</tr></table>
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<hr>
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<br>
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</DIV>
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<!--End of Navigation Panel-->
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<!--Table of Child-Links-->
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<A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></A>
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<UL CLASS="ChildLinks">
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<LI><A NAME="tex2html772"
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HREF="node33.html#SECTION000613100000000000000">Name</A>
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<LI><A NAME="tex2html773"
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HREF="node33.html#SECTION000613200000000000000">Synopsys</A>
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<LI><A NAME="tex2html774"
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HREF="node33.html#SECTION000613300000000000000">Description</A>
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<LI><A NAME="tex2html775"
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HREF="node33.html#SECTION000613400000000000000">Parameters</A>
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<LI><A NAME="tex2html776"
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HREF="node33.html#SECTION000613500000000000000">Example</A>
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<LI><A NAME="tex2html777"
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HREF="node33.html#SECTION000613600000000000000">Errors</A>
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<LI><A NAME="tex2html778"
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HREF="node33.html#SECTION000613700000000000000">See Also</A>
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</UL>
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<!--End of Table of Child-Links-->
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<HR>
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<H2><A NAME="SECTION000613000000000000000"></A>
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<A NAME="secpowerring"></A>
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<BR>
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PowerRing
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</H2>
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<H3><A NAME="SECTION000613100000000000000">
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Name</A>
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</H3>
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<P>
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PowerRing - Placement of power rings.
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<P>
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<H3><A NAME="SECTION000613200000000000000">
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Synopsys</A>
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</H3>
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<P>
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<PRE>
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PowerRing ( nb )
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</PRE>
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<P>
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<H3><A NAME="SECTION000613300000000000000">
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Description</A>
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</H3>
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<P>
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This function places power rings around the core and around the plots.
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<P>
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<H3><A NAME="SECTION000613400000000000000">
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Parameters</A>
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</H3>
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<P>
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<UL>
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<LI><code>nb</code> : Number of pair of rings vdd/vss
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</LI>
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</UL>
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<P>
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<H3><A NAME="SECTION000613500000000000000">
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Example</A>
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</H3>
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<P>
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<PRE>
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PowerRing ( 3 )
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</PRE>
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<P>
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<H3><A NAME="SECTION000613600000000000000">
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Errors</A>
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</H3>
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<P>
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Some errors may occur :
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<UL>
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<LI><code>[Stratus ERROR] PowerRing : Pads in the north haven't been placed.</code>
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<BR>
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The pads of the 4 sides of the chip must be placed before calling function PowerRing.
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</LI>
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<LI><code>[Stratus ERROR] PowerRing : too many rings, not enough space.</code>
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<BR>
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Wether The argument of PowerRing is to big, or the abutment box of the chip is to small. There's no space to put the rings.
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</LI>
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</UL>
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<P>
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<H3><A NAME="SECTION000613700000000000000">
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See Also</A>
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</H3>
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<P>
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<A HREF="node3.html#secintroduction"><SPAN CLASS="textit">Introduction</SPAN></A>
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<A HREF="node10.html#seclayout"><SPAN CLASS="textit">Layout</SPAN></A>
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<A HREF="node27.html#seccentric"><SPAN CLASS="textit">PlaceCentric</SPAN></A>
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<A HREF="node28.html#secglu"><SPAN CLASS="textit">PlaceGlu</SPAN></A>
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<A HREF="node29.html#secfillcell"><SPAN CLASS="textit">FillCell</SPAN></A>
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<A HREF="node30.html#secpads"><SPAN CLASS="textit">Pads</SPAN></A>
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<A HREF="node31.html#secrails"><SPAN CLASS="textit">Alimentation rails</SPAN></A>
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<A HREF="node32.html#secconnectors"><SPAN CLASS="textit">Alimentation connectors</SPAN></A>
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<A HREF="node34.html#secrouteck"><SPAN CLASS="textit">RouteCk</SPAN></A>
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<P>
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<BR> <HR>
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<ADDRESS>
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Sophie B<small>ELLOEIL</small><br>20051116.1
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</ADDRESS>
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</BODY>
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</HTML>
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