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Man Pages


Manual Reference Pages  -  ADDLOCAP (3)

[Include document man1/alc_contents.mac]

   addlocap    addlocap

NAME

addlocap - create a logical capacitor

[Include document man1/alc_origin.1]

CONTENTS

Synopsys
Parameters
Description
Return Value
Errors
Example
See Also

SYNOPSYS







#include "mlo.h"

locap_list *addlocap(ptfig,type,capa,tcon,bcon,name) lofig_list *ptfig ; char type ; double capa ; losig_list *tcon, *bcon ; const char *name ;

PARAMETERS

ptfig Pointer to the figure in which the capacitor should be added
type Capacitor type
capa Capacitance value in Farads
tcon Pointer to the signal to be connected on the capacitor top plate
bcon Pointer to the signal to be connected on the capacitor bottom plate
name Capacitor instance name

DESCRIPTION

addlocap creates a new capacitor, and adds it to the list of capacitors pointed to by ptfig -> LOCAP. The new capacitor is added in front of the list, and becomes itself the list head.
The type parameter can take two values :
CAPMIM for a metal/metal capacitor (the top plate and the bottom plate layers are different metal layers)
CAPPNWELL for a POLY/NWELL capacitor (if available in the technology). The top plate layer is POLY, bottom plate is NWELL.

The capa argument is the capacitance value in Farads.
Two connectors are created each time a capacitor is added, and the tcon and bcon losigs are attached to the SIG field of the locon of the appropriate connector. The connectors names are tcon (top plate) and bcon (bottom plate); their direction, DIR, are set to ’P’, and their TYPE INTERNAL. For details on the structures, see locon(3) and locap(3).

RETURN VALUE

addlocap returns a pointer to the newly created capacitor.

ERRORS

"*** mbk error *** illegal capacitor type : type"
The type is not a legal capacitor type.

EXAMPLE






#include "mlo.h"

void parallel_capacitors(void) /* netlist of two parallel capacitors */ { lofig_list *pt = NULL ; losig_list *in = NULL ; losig_list *out = NULL ;

pt = addlofig("parallel_capacitors") ; addlocon(pt,"in",in = givelosig(pt,0),IN) ; addlocon(pt,"out",out = givelosig(pt,1),OUT) ;

addlocap(pt,CAPMIM,0.5e-6,in,out,"cap1") ; addlocap(pt,CAPMIM,0.5e-6,in,out,"cap2") ; }

SEE ALSO

mbk(1), lofig(3), locap(3), locon(3), dellocap(3).

[Include document man1/alc_bug_report.1]

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ASIM/LIP6 ADDLOCAP (3) August 14, 2002

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