Provided by: alliance_5.1.1-1.1build1_amd64 
NAME
phseg - mbk physical segment
DESCRIPTION
The phseg structure is used to describe a segment belonging to a symbolic layout model,
see phfig(3) for details. Transistors are segments of a particular layer.
The declarations needed to work on phseg are available in the header file
"/labo/include/mph402.h", where '402' is the actual mbk version.
The following C structure supports the description of the segment :
typedef struct phseg {
struct phseg ∗NEXT;
char ∗NAME;
long X1,Y1,X2,Y2;
long WIDTH;
char TYPE;
char LAYER;
struct ptype ∗USER;
} phseg_list;
NEXT Pointer to the next segment in the list.
NAME Name of the segment. The name is not an identifier, and a name is
present only if the designer used one for debug purposes.
X1, Y1, X2, Y2 Coordinates of each end of the segment. Since it's a symbolic segment,
one alway has either X1 = X2 or Y1 = Y2. Furthermore, by construction,
it is warranty, if one accesses the data structure through the legal
functions, that X1 <= X2 and Y1 <= Y2.
TYPE This caracter can take four values :
LEFT or RIGHT if Y1 = Y2. The exact value is chosen by
addphseg, depending upon X1 and X2 relations.
UP or DOWN if X1 = X2
LAYER Symbolic layer used for the segment. The legal values are :
NWELL N bulk
PWELL P bulk
NTIE N implant in P bulk
PTIE P implant in N bulk
NDIF N diffusion
PDIF P diffusion
NTRANS N transistor
PTRANS P transistor
POLY polysilicium
ALU1 first metal
ALU2 second metal
ALU3 third metal
TPOLY polysilicum through route
TALU1 first metal through route
TALU2 second metal through route
TALU3 third metal through route
WIDTH Width of the segment. The physical extension of a segment is
perpendicular to its direction.
USER Pointer to a ptype list, see ptype for details, that is a general
purpose pointer used to share informations on the segment.
SEE ALSO
mbk(1), addphseg(3), getphseg(3), delphseg(3), phfig(3), ptype(3).