NAME¶
addlocap - create a logical capacitor
ORIGIN¶
This software belongs to the ALLIANCE CAD SYSTEM developed by the ASIM team at
LIP6 laboratory of Université Pierre et Marie CURIE, in Paris,
France.
Web :
http://asim.lip6.fr/recherche/alliance/
E-mail :
alliance-users@asim.lip6.fr
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).
BUG REPORT¶
This tool is under development at the
ASIM department of the
LIP6
laboratory.
We need your feedback to improve documentation and tools.