Register package example

\usepackage{register}

% document: http://tug.ctan.org/tex-archive/macros/latex/contrib/register/register.pdf
...

\begin{register}{H}{Example}{0x250}% name=example
\label{example}%
\regfield{FIFO depth}{6}{58}{{random}}%
\regfield{Something}{4}{54}{1100}%
\regfield{Status}{21}{33}{{uninitialized}}%
\regfield{Enable}{1}{32}{1}%
\reglabel{Reset}\regnewline%
\regfield{Counter}{10}{22}{{0x244}}% READ_ONLY
\regfield{Howdy}{5}{17}{1_1010}%
\regfield{Control}{1}{16}{-}%
\regfield{Hardfail}{1}{15}{1}%
\regfield{Data}{15}{0}{{uninitialized}}%
\reglabel{Reset}%\regnewline%
\end{register}

\begin{register}{htbp}{Configuration}{0x2848}% name=CONFIG
\label{Configuration}%
\regfield{soft reset perf}{1}{63}{0}% STATUS
\regfield{reserved}{30}{33}{0}%
\regfield{Test mode}{1}{32}{0}%
\reglabel{Reset}\regnewline%
\regfield{reserved}{13}{19}{0}%
\regfield{\parbox[b]{0pt}{Request Depth}}{7}{12}{1}%
\regfield{reserved}{3}{9}{0}%
\regfield{line\_2x\_L}{1}{8}{?}% STATUS
\regfield{reserved}{1}{7}{0}%
\regfield{ill\_cmd\_enable}{1}{6}{0}%
\regfield{LPCE}{1}{5}{0}%
\regfield{DVI disable}{1}{4}{0}%
\regfield{SBA enable}{1}{3}{0}%
\regfield{reserved}{2}{1}{0}%
\regfield{line\_2x\_enable}{1}{0}{0}% READ_ONLY
\reglabel{Reset}\regnewline%
\begin{regdesc}\begin{reglist}[Request~Depth]
\item [line\_2x\_enable]Setting this bit enables the chip
to utilize a second connected data line.
\item [SBA~enable]Setting this bit activates the sideband-address port.
The SBA port is only useable in a double-line configuration.
\item [DVI~disable]Setting this bit \emph{turns off} DVI extraction for
DMA requests.
\item [LPCE]Line Parity Check Enable.
\item [ill\_cmd\_enable]\TR{3}Illegal Command enable.
This bit is new for TR3.
\item [line\_2x\_L](Read only) Indicates whether this chip is connected
to a second data line. When this bit is 0, a second line
is available.
\item [Request~Depth]Controls number of outstanding DMA requests.
\item [Test~mode]Activates data line test mode.
\item [soft~reset~perf]\TR{4}Indicates that a soft reset has been
performed. This bit is new for TR4.
\end{reglist}\end{regdesc}\end{register}