add muxer block diagram

diff --git a/pinmux/pinmux_chennai_2018.tex b/pinmux/pinmux_chennai_2018.tex
index 4357a5d22f8f35c5c567e7e09713bf9c3924e105..181f60232ba1527a0706de3120fff0399d5801f1 100644 (file)
--- a/pinmux/pinmux_chennai_2018.tex
+++ b/pinmux/pinmux_chennai_2018.tex
@@ -32,6 +32,12 @@
 }
 
 
+\frame{\frametitle{Standard GPIO 4-way in/out Mux}
+ \begin{center}
+  \includegraphics[height=2.5in]{../shakti/m_class/mygpiomux.jpg}\\
+  {\bf 4-in, 4-out, pullup/down, hysteresis, edge-detection}
+ \end{center}
+}
 \frame{\frametitle{Summary}
 
  \begin{itemize}