\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
- (bi-directional case: two wires are always allocated, one
+ (bi-directional case: two wires are {\bf always} allocated, one
for input to the function and one for output from the function).
\item Bus: a group of bi-directional functions (SDMMC D0 to D3)
- where the direction is ganged and under the Bus's control
+ where the direction is ganged and {\bf under the Bus's control}
\item Input Priority Muxer: a multiplexer with N selector
wires and N associated inputs. The lowest (highest?) indexed
"selector" enabled results in its
input being routed to the output.
- \item Output Demuxer: a one-to-many "redirector" where a single
- input is "routed" to any one output, based
- on a selector.
+ \item Output Muxer: a many-to-one "redirector" where any one
+ output "routed" to the input, based on a selector "address".
\end{itemize}
}