Summary: it's all about making more money!\vspace{4pt}
\item How? By multiplexing many more functions (100 to 1,200) than there
are actual available pins (48 to 500), the required chip package
- is far less costly and the chip more desirable\vspace{4pt}
+ is cheaper, smaller, and more versatile\vspace{4pt}
\item What? A many-to-many dynamically-configureable router of
I/O functions to I/O pins
\end{itemize}
\frame{\frametitle{Output Muxer (very simple)}
\begin{center}
\includegraphics[height=1.1in]{reg_gpio_out_mux.jpg}\\
- {\bf Ouput Muxer using 2-bit address selection}\\
+ {\bf Output Muxer using 2-bit address selection}\\
\end{center}
\begin{itemize}
\item Very straightforward (deceptively so, like SRAM cells)