\frame{\frametitle{Glossary}
\begin{itemize}
+ \item GPIO: general-purpose reconfigureable I/O (Input/Output).
\item Pin: an I/O pad. May be driven (input) or may drive (output).
\item FN: term for a single-wire "function", such as UART\_TX,
I2C\_SDA, SDMMC\_D0 etc. may be an input, output or both
\item Output Demuxer: a one-to-many "redirector" where a single
input is "routed" to any one output, based
on a selector.
- \item GPIO: general-purpose reconfigureable I/O (Input/Output).
\end{itemize}
}