\documentclass[10pt,a4paper]{article}

% Packages
\usepackage{fancyhdr}           % For header and footer
\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
\usepackage{graphicx}           % For images
\usepackage{xcolor}             % For hex colours
%\usepackage[utf8x]{inputenc}    % For unicode character support
\usepackage[T1]{fontenc}        % Without this we get weird character replacements
\usepackage{colortbl}           % For coloured tables
\usepackage{setspace}           % For line height
\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{TimSch}
\pdfinfo{
  /Title (atmel-avr-register.pdf)
  /Creator (Cheatography)
  /Author (TimSch)
  /Subject (Atmel AVR Register Cheat Sheet)
}

% Lengths and widths
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\addtolength{\textheight}{-1cm}
\addtolength{\hoffset}{-3cm}
\addtolength{\voffset}{-2cm}
\setlength{\tabcolsep}{0.2cm} % Space between columns
\setlength{\headsep}{-12pt} % Reduce space between header and content
\setlength{\headheight}{85pt} % If less, LaTeX automatically increases it
\renewcommand{\footrulewidth}{0pt} % Remove footer line
\renewcommand{\headrulewidth}{0pt} % Remove header line
\renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit
% This two commands together give roughly
% the right line height in the tables
\renewcommand{\arraystretch}{1.3}
\onehalfspacing

% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
\newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns
\newcommand{\tn}{\tabularnewline} % Required as custom column type in use

% Font and Colours
\definecolor{HeadBackground}{HTML}{333333}
\definecolor{FootBackground}{HTML}{666666}
\definecolor{TextColor}{HTML}{333333}
\definecolor{DarkBackground}{HTML}{A3A3A3}
\definecolor{LightBackground}{HTML}{F3F3F3}
\renewcommand{\familydefault}{\sfdefault}
\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Atmel AVR Register Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{TimSch} via \textcolor{DarkBackground}{\uline{cheatography.com/29480/cs/9965/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}TimSch \\
  \uline{cheatography.com/timsch} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 3rd December, 2016.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{2}

\begin{tabularx}{8.4cm}{p{0.76 cm} x{5.092 cm} x{1.748 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{Port Data Register}}  \tn
% Row 0
\SetRowColor{LightBackground}
PORTx & Pins & Adresse \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
PORTD & 0 - 7 | Bit 7 nicht nutzbar & 0x0B (0x2B) \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
PORTB & 8 - 13 | Bit 6 \& 7 nicht nutzbar & 0x05 (0x25) \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
PORTC & analog Pins 0 - 5 & 0x08 (0x28) \tn 
% Row Count 8 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\SetRowColor{LightBackground}
\mymulticolumn{3}{x{8.4cm}}{Ist der Pin als Ausgang konfiguriert, legt das Bit den Pegel fest.  \newline Ist der Pin als Eingang konfiguriert, aktiviert das Bit internen Pull-Up-Widerstand.}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{p{1.14 cm} x{3.344 cm} x{3.116 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{DDRx Data Direction Register}}  \tn
% Row 0
\SetRowColor{LightBackground}
DDRx & Pins & Adresse \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
DDRD & 0 - 7 & 0x0A (0x2A) \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
DDRB & 8 - 13 & 0x04 (0x24) \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
DDRC & analog 0 - 5 & 0x07 (0x27) \tn 
% Row Count 4 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\SetRowColor{LightBackground}
\mymulticolumn{3}{x{8.4cm}}{Legt für jeden Pin fest, ob er als Eingang oder Ausgang verwendet wird.  \newline 0 = Eingang  \newline 1 = Ausgang}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{p{1.14 cm} x{3.344 cm} x{3.116 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{8.4cm}}{\bf\textcolor{white}{PINx Input Pins Address}}  \tn
% Row 0
\SetRowColor{LightBackground}
PINx & Pins & Adresse \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
PIND & 0 - 7 & 0x09 (0x29) \tn 
% Row Count 2 (+ 1)
% Row 2
\SetRowColor{LightBackground}
PINB & 8 - 13 & 0x03 (0x23) \tn 
% Row Count 3 (+ 1)
% Row 3
\SetRowColor{white}
PINC & analog 0 - 5 & 0x06 (0x26) \tn 
% Row Count 4 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\SetRowColor{LightBackground}
\mymulticolumn{3}{x{8.4cm}}{Das Bit repr{\"a}sentiert den Pegel am Pin, unabh{\"a}ngig von der Konfiguration als Ein-/Ausgang.  \newline 1 = HIGH \newline 0 = LOW}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}