coriolis/stratus1/doc/man_dpgenrom2.tex

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2010-07-12 10:33:22 -05:00
\begin{itemize}
\item Name : DpgenRom2 -- 2 words ROM Macro-Generator
\item Description : Generates a \verb-n- bits 2 words optimized ROM named \verb-modelname-.
\item Terminal Names :
\begin{itemize}
\item sel0 : address of the value (input, 1 bit)
\item q : the selected word (output, \verb-n- bits)
\item vdd : power
\item vss : ground
\end{itemize}
\item Parameters : Parameters are given with a map called \verb-param-.
\begin{itemize}
\item nbit : Defines the size of the generator
\item val0 : Defines the first word
\item val1 : Defines the second word
\end{itemize}
\item Behavior :
\begin{verbatim}
q <= WITH sel0 SELECT
contsVal0 WHEN B"0",
constVal1 WHEN B"1";
\end{verbatim}
\item Example :
\begin{verbatim}
class myClass ( Model ) :
def Interface ( self ) :
self._sel0 = LogicIn ( "sel0", 1 )
self._q = LogicOut ( "dataout", 4 )
self._vdd = VddIn ( "vdd" )
self._vss = VssIn ( "vss" )
def Netlist ( self ) :
Inst ( 'DpgenRom2'
, param = { 'val0' : "0b1010"
, 'val1' : "0b1100"
, 'nbit' : 4
}
, map = { 'sel0' : self._sel0
, 'q' : self._q
, 'vdd' : self._vdd
, 'vss' : self._vss
}
)
\end{verbatim}
\end{itemize}