67 lines
2.2 KiB
TeX
67 lines
2.2 KiB
TeX
\begin{itemize}
|
|
\item \textbf{Name} : DpgenBuff -- Buffer Macro-Generator
|
|
\item \textbf{Synopsys} :
|
|
\begin{verbatim}
|
|
Generate ( 'DpgenBuff', modelname
|
|
, param = { 'nbit' : n
|
|
, 'drive' : d
|
|
, 'physical' : True
|
|
, 'behavioral' : True
|
|
}
|
|
)
|
|
\end{verbatim}
|
|
\item \textbf{Description} : Generates a \verb-n- bits inverter with an output power of \verb-d- named \verb-modelname-.
|
|
\item \textbf{Terminal Names} :
|
|
\begin{itemize}
|
|
\item \textbf{i0} : input (\verb-n- bits)
|
|
\item \textbf{q} : output (\verb-n- bits)
|
|
\item \textbf{vdd} : power
|
|
\item \textbf{vss} : ground
|
|
\end{itemize}
|
|
\item \textbf{Parameters} : Parameters are given in the map \verb-param-.
|
|
\begin{itemize}
|
|
\item \textbf{nbit} (mandatory) : Defines the size of the generator
|
|
\item \textbf{drive} (optional) : Defines the output power of the gates
|
|
\begin{itemize}
|
|
\item Valid drive are : 2, 4 or 8
|
|
\item If this parameter is not defined, it's value is the smallest one permitted
|
|
\end{itemize}
|
|
\item \textbf{physical} (optional, default value : False) : In order to generate a layout
|
|
\item \textbf{behavioral} (optional, default value : False) : In order to generate a behavior
|
|
\end{itemize}
|
|
\item \textbf{Behavior} :
|
|
\begin{verbatim}
|
|
nq <= i0
|
|
\end{verbatim}
|
|
\item \textbf{Example} :
|
|
\begin{verbatim}
|
|
from stratus import *
|
|
|
|
class inst_buff ( Model ) :
|
|
|
|
def Interface ( self ) :
|
|
self.i = SignalIn ( "i", 32 )
|
|
self.o = SignalOut ( "o", 32 )
|
|
|
|
self.vdd = VddIn ( "vdd" )
|
|
self.vss = VssIn ( "vss" )
|
|
|
|
def Netlist ( self ) :
|
|
Generate ( 'DpgenBuff', 'buff_32'
|
|
, param = { 'nbit' : 32
|
|
, 'physical' : True
|
|
}
|
|
)
|
|
self.I = Inst ( 'buff_32', 'inst'
|
|
, map = { 'i0' : self.i
|
|
, 'q' : self.o
|
|
, 'vdd' : self.vdd
|
|
, 'vss' : self.vss
|
|
}
|
|
)
|
|
|
|
def Layout ( self ) :
|
|
Place ( self.I, NOSYM, Ref(0, 0) )
|
|
\end{verbatim}
|
|
\end{itemize}
|