49 lines
1.4 KiB
TeX
49 lines
1.4 KiB
TeX
\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}
|