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IOC format

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Christophe Alexandre 2002-11-20 15:59:09 +00:00
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alliance/src/ocp/doc/ocp.1
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.\" $Id: ocp.1,v 1.3 2002/10/09 20:12:44 xtof Exp $
.\" $Id: ocp.1,v 1.4 2002/11/20 15:59:09 xtof Exp $
.\" @(#)Labo.l 0.0 92/09/24 UPMC; Author: Christophe ALEXANDRE
.pl -.4
.TH OCP 1 "September 27, 2001" "ASIM/LIP6" "CAO\-VLSI Reference Manual"
@ -85,6 +85,46 @@ This option won't be used if a defined placement file is given.
.br
\fB-gnuplot\fP option allow to generate automatically gnuplot files, for editing statistics
.br
.SH IOC format
.PP
The IOC format is based on \fBCadence\fB input-output connectors placement description.
.br
The description is composed of 5 possibles sections: TOP(), BOTTOM(), LEFT(), RIGHT(), and IGNORE()
.br
In each section except IGNORE(), there are placed IOs.
.br
In the IGNORE() section, the IOs are ignored by \fBOCP\fB.
.br
.br
In every section, the IO syntax could be:
.br
for pin: (IOPIN iopinName.0 );
.br
for space: SPACE value;
.br
The capital words are keywords. orientation is not required.
.br
The value is the space between the IO above and the IO below it.
.br
\fBExample\fB
.br
.nf
TOP ( # IOs are ordered from left to right
(IOPIN b(3).0 );
(IOPIN cin.0 );
(IOPIN ck.0 );
(IOPIN cout.0 );
)
BOTTOM ( # IOs are ordered from left to right
(IOPIN i(3).0 );
(IOPIN i(4).0 );
(IOPIN i(5).0 );
(IOPIN i(6).0 );
)
IGNORE ( # IOs are ignored(not placed) by IO Placer
)
.fi
.SH ENVIRONMENT VARIABLES
.PP
\fBocp\fP uses the environment variables MBK_VDD and MBK_VSS to know