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/trunk/doc/src/circ-hdb1_enc-saidas.dia
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0,0 → 1,25
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/trunk/doc/src/circ-ami_dec.png
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trunk/doc/src/circ-ami_dec.png
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Index: trunk/doc/src/circ-hdb1_enc-q0.png
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Index: trunk/doc/src/circ-hdb1_enc-q0.png
===================================================================
--- trunk/doc/src/circ-hdb1_enc-q0.png (nonexistent)
+++ trunk/doc/src/circ-hdb1_enc-q0.png (revision 3)
trunk/doc/src/circ-hdb1_enc-q0.png
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Index: trunk/doc/src/circ-hdb1_enc-q1.png
===================================================================
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Index: trunk/doc/src/circ-hdb1_enc-q1.png
===================================================================
--- trunk/doc/src/circ-hdb1_enc-q1.png (nonexistent)
+++ trunk/doc/src/circ-hdb1_enc-q1.png (revision 3)
trunk/doc/src/circ-hdb1_enc-q1.png
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Index: trunk/doc/src/circ-hdb1_enc-q2.png
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Index: trunk/doc/src/circ-hdb1_enc-q2.png
===================================================================
--- trunk/doc/src/circ-hdb1_enc-q2.png (nonexistent)
+++ trunk/doc/src/circ-hdb1_enc-q2.png (revision 3)
trunk/doc/src/circ-hdb1_enc-q2.png
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Index: trunk/doc/src/estados-hdb1_dec.dia
===================================================================
--- trunk/doc/src/estados-hdb1_dec.dia (nonexistent)
+++ trunk/doc/src/estados-hdb1_dec.dia (revision 3)
@@ -0,0 +1,18 @@
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+àJ~< ud{vgpA} h
trunk/doc/src/estados-hdb1_enc.png
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+application/octet-stream
\ No newline at end of property
Index: trunk/doc/src/estados-ami_enc.dia
===================================================================
--- trunk/doc/src/estados-ami_enc.dia (nonexistent)
+++ trunk/doc/src/estados-ami_enc.dia (revision 3)
@@ -0,0 +1,14 @@
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\ No newline at end of file
Index: trunk/doc/src/circ-hdb1_dec.png
===================================================================
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svn:mime-type = application/octet-stream
Index: trunk/doc/src/circ-hdb1_dec.png
===================================================================
--- trunk/doc/src/circ-hdb1_dec.png (nonexistent)
+++ trunk/doc/src/circ-hdb1_dec.png (revision 3)
trunk/doc/src/circ-hdb1_dec.png
Property changes :
Added: svn:mime-type
## -0,0 +1 ##
+application/octet-stream
\ No newline at end of property
Index: trunk/doc/src/circ-ami_dec.dia
===================================================================
--- trunk/doc/src/circ-ami_dec.dia (nonexistent)
+++ trunk/doc/src/circ-ami_dec.dia (revision 3)
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Index: trunk/doc/src/circ-ami_enc.png
===================================================================
Cannot display: file marked as a binary type.
svn:mime-type = application/octet-stream
Index: trunk/doc/src/circ-ami_enc.png
===================================================================
--- trunk/doc/src/circ-ami_enc.png (nonexistent)
+++ trunk/doc/src/circ-ami_enc.png (revision 3)
trunk/doc/src/circ-ami_enc.png
Property changes :
Added: svn:mime-type
## -0,0 +1 ##
+application/octet-stream
\ No newline at end of property
Index: trunk/doc/src/circ-hdb1_enc-q1.dia
===================================================================
--- trunk/doc/src/circ-hdb1_enc-q1.dia (nonexistent)
+++ trunk/doc/src/circ-hdb1_enc-q1.dia (revision 3)
@@ -0,0 +1,26 @@
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\ No newline at end of file
Index: trunk/doc/src/estados-hdb1_enc.dia
===================================================================
--- trunk/doc/src/estados-hdb1_enc.dia (nonexistent)
+++ trunk/doc/src/estados-hdb1_enc.dia (revision 3)
@@ -0,0 +1,22 @@
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\ No newline at end of file
Index: trunk/doc/src/circ-hdb1_dec.dia
===================================================================
--- trunk/doc/src/circ-hdb1_dec.dia (nonexistent)
+++ trunk/doc/src/circ-hdb1_dec.dia (revision 3)
@@ -0,0 +1,31 @@
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\ No newline at end of file
Index: trunk/doc/src/estados-ami_dec.png
===================================================================
Cannot display: file marked as a binary type.
svn:mime-type = application/octet-stream
Index: trunk/doc/src/estados-ami_dec.png
===================================================================
--- trunk/doc/src/estados-ami_dec.png (nonexistent)
+++ trunk/doc/src/estados-ami_dec.png (revision 3)
trunk/doc/src/estados-ami_dec.png
Property changes :
Added: svn:mime-type
## -0,0 +1 ##
+application/octet-stream
\ No newline at end of property
Index: trunk/doc/src/circ-ami_enc.dia
===================================================================
--- trunk/doc/src/circ-ami_enc.dia (nonexistent)
+++ trunk/doc/src/circ-ami_enc.dia (revision 3)
@@ -0,0 +1,21 @@
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\ No newline at end of file
Index: trunk/doc/src/circ-hdb1_enc-saidas.png
===================================================================
Cannot display: file marked as a binary type.
svn:mime-type = application/octet-stream
Index: trunk/doc/src/circ-hdb1_enc-saidas.png
===================================================================
--- trunk/doc/src/circ-hdb1_enc-saidas.png (nonexistent)
+++ trunk/doc/src/circ-hdb1_enc-saidas.png (revision 3)
trunk/doc/src/circ-hdb1_enc-saidas.png
Property changes :
Added: svn:mime-type
## -0,0 +1 ##
+application/octet-stream
\ No newline at end of property
Index: trunk/doc/src/documentation.tex
===================================================================
--- trunk/doc/src/documentation.tex (nonexistent)
+++ trunk/doc/src/documentation.tex (revision 3)
@@ -0,0 +1,352 @@
+\documentclass[11pt]{article}
+\usepackage[utf8]{inputenc}
+%\usepackage[brazil]{babel}
+\usepackage{palatino}
+\usepackage{fullpage}
+\usepackage{hyperref}
+
+\usepackage{multicol}
+\usepackage{graphicx}
+\usepackage{float}
+\usepackage{moreverb}
+\usepackage{verbatim}
+
+\usepackage{multirow}
+
+\title{\textbf{AMI and HDB1 Line Codes - VHDL Implementation.}}
+\author{Ribamar Santarosa, ribamar@gmail.com}
+\date{Outubro/Novembro 2006.}
+
+\begin{document}
+\maketitle
+
+
+\begin{abstract}
+Line codings are methods for coding digital data for making them
+less susceptible to signal losses during transmission. This project
+implements the AMI --- Alternate Mark Inverse --- and HDB1 --- High
+Density Bipolar of order 1 codings. This file documents their
+implementation.
+\end{abstract}
+
+\section{Specification.}
+
+
+\paragraph{AMI.} This coding takes a binary sequency into a
+ternary sequency having the signals 0, +1, -1 by the following way:
+
+\begin{itemize}
+\item Inputs of 1 are coded as +1 or -1 alternately.
+\item Inputs of 0 are coded always as 0.
+\item Entradas iguais a zero são codificadas como zero;
+\end{itemize}
+
+Example:
+\begin{verbatim}
+Input
+ 1 0 1 0 1 1 0 0 0 1 0 1 1 0 0 1 0 1 0 0 0 1 1 1
+Output
++1 0 -1 0 +1 -1 0 0 0 +1 0 -1 +1 0 0 -1 0 +1 0 0 0 -1 +1 -1
+\end{verbatim}
+
+\paragraph{HDB1.} This coding takes a binary sequency into a
+ternary sequency having the signals 0, +1, -1 by the following way:
+
+\begin{itemize}
+\item Inputs of 1 are coded as either +1 or -1.
+\item Paired inputs of 0 are coded as either +1+1 or -1-1.
+\item Entradas iguais a zero, isoladas, isto é,
+seguidas de um e que não foram codificadas em conjunto com outro
+zero (formando +1+1 ou -1-1), são codificadas como zero;
+\item Isolated inputs of 0, ie, inputs of 0 not followed by 1 which
+weren't paired to another 0 (thus forming +1+1 or -1-1) are coded
+as 0.
+\item Outputs have always alternate signals. If the last output was
+-1 and the input is 00, the next output is coded as +1+1, if the
+last output was -1-1 and the input is 1, the next output is +1.
+\end{itemize}
+
+Example:
+\begin{verbatim}
+Input
+ 1 0 1 0 1 1 0 0 0 1 0 1 1 0 0 1 0 1 0 0 0 0 1 1
+Output
++1 0 -1 0 +1 -1 +1 +1 0 -1 0 +1 -1 +1 +1 -1 0 +1 -1 -1 +1 +1 -1 +1
+\end{verbatim}
+
+
+
+%\begin{multicols}{2}
+
+\section{AMI Encoder. }
+
+\begin{figure}[H]
+\centering
+\includegraphics[scale=0.35]{estados-ami_enc}
+\caption[ ]{\label{estados-ami_enc} State Map. }
+\end{figure}
+
+\begin{multicols}{2}
+Truth Table: \\
+
+\begin{tabular}{|c|c|cc|c|}
+\hline
+$q$ & $e$ & $S_0$ & $ S_1$ & $q^+$ \\
+\hline
+0 & 0 & 0 & 0 & 0 \\
+0 & 1 & 1 & 0 & 1 \\
+\hline
+1 & 0 & 0 & 0 & 1 \\
+1 & 1 & 0 & 1 & 0 \\
+\hline
+\end{tabular}
+
+Karnaugh Map isn't necessary: \\
+$ S_0 = e \cdot q'$ \\
+$ S_1 = e \cdot q $ \\
+$ q^+ = e \oplus q$ \\
+
+\end{multicols}
+
+%\hrule
+
+\section{AMI Decoder. }
+\begin{multicols}{2}
+
+
+\begin{figure}[H]
+\centering
+\includegraphics[scale=0.35]{estados-ami_dec}
+\caption[ ]{\label{estados-ami_dec} State Map. }
+\end{figure}
+
+
+Truth Table:
+
+\begin{tabular}{|cc|c|}
+\hline
+$e_0$ & $e_1$ & $S$ \\
+\hline
+0 & 0 & 0 \\
+0 & 1 & 1 \\
+1 & 0 & 1 \\
+1 & 1 & $X$ \\
+\hline
+\end{tabular}
+
+\vspace{50pt}
+Karnaugh Map isn't necessary: \\
+$ S = e_0 + e_1 $ \\
+
+\end{multicols}
+%\hrule
+
+
+\section{HDB1 Encoder. }
+\begin{figure}[H]
+\centering
+\includegraphics[scale=0.35]{estados-hdb1_enc}
+\caption[ ]{\label{estados-hdb1_enc} State Map. }
+\end{figure}
+
+
+\begin{multicols}{2}
+
+
+Truth Table: \\
+ ~\\
+\begin{tabular}{|cccc|ccc|cc|}
+\hline
+$E$ & $q_0$ & $q_1$ & $q_2$ & $q_0^+$ & $q_1^+$ & $q_2^+$ & $S_0$ & $S_1$ \\
+\hline
+$0$ & $0$ & $0$ & $0$ & $0$ & $0$ & $1$ & $1$ & $0$ \\
+$1$ & $0$ & $0$ & $0$ & $1$ & $1$ & $0$ & $1$ & $0$ \\
+\hline
+$0$ & $0$ & $0$ & $1$ & $0$ & $1$ & $0$ & $0$ & $1$ \\
+$1$ & $0$ & $0$ & $1$ & $1$ & $1$ & $0$ & $0$ & $0$ \\
+\hline
+$0$ & $0$ & $1$ & $0$ & $0$ & $1$ & $1$ & $0$ & $1$ \\
+$1$ & $0$ & $1$ & $0$ & $0$ & $0$ & $0$ & $0$ & $1$ \\
+\hline
+$0$ & $0$ & $1$ & $1$ & $1$ & $0$ & $0$ & $1$ & $0$ \\
+$1$ & $0$ & $1$ & $1$ & $0$ & $0$ & $0$ & $0$ & $0$ \\
+\hline
+$0$ & $1$ & $0$ & $0$ & $0$ & $0$ & $1$ & $1$ & $0$ \\
+$1$ & $1$ & $0$ & $0$ & $1$ & $1$ & $0$ & $1$ & $0$ \\
+\hline
+$$X$$ & $1$ & $0$ & $1$ & $$X$$ & $$X$$ & $$X$$ & $$X$$ & $$X$$ \\
+\hline
+$0$ & $1$ & $1$ & $0$ & $1$ & $1$ & $1$ & $0$ & $1$ \\
+$1$ & $1$ & $1$ & $0$ & $0$ & $0$ & $0$ & $0$ & $1$ \\
+\hline
+$0$ & $1$ & $1$ & $1$ & $0$ & $0$ & $0$ & $1$ & $0$ \\
+$1$ & $1$ & $1$ & $1$ & $0$ & $0$ & $0$ & $0$ & $1$ \\
+\hline
+\end{tabular}
+
+$q_0^+$:
+\begin{tabular}{|cc|c|c|c|c|}
+\hline
+\multicolumn{6}{|c|}{$E q_0$ } \\
+ & & \tiny{$00$} & \tiny{$01$} & \tiny{$11$} & \tiny{$10$} \\
+ & \tiny{$00$} & & & 1 & 1 \\
+$q_1 q_2$ & \tiny{$01$} & & $X$ & $X$ & 1 \\
+ & \tiny{$11$} & 1 & & & \\
+ & \tiny{$10$} & & 1 & & \\
+\hline
+\end{tabular}
+
+$q_0^+ = E . q_1' + E'.q_0'.q_1.q_2 + E'.q_0.q_1 . q_2' $
+
+$q_1^+$:
+\begin{tabular}{|cc|c|c|c|c|}
+\hline
+\multicolumn{6}{|c|}{$E q_0$ } \\
+ & & \tiny{$00$} & \tiny{$01$} & \tiny{$11$} & \tiny{$10$} \\
+ & \tiny{$00$} & & & 1 & 1 \\
+$q_1 q_2$ & \tiny{$01$} & 1 & $X$ & $X$ & 1 \\
+ & \tiny{$11$} & & & & \\
+ & \tiny{$10$} & 1 & 1 & & \\
+\hline
+\end{tabular}
+
+$q_1^+ = E . q_1' + q_1'.q_2 + E'.q_1.q_2' $
+
+$q_2^+$:
+\begin{tabular}{|cc|c|c|c|c|}
+\hline
+\multicolumn{6}{|c|}{$E q_0$ } \\
+ & & \tiny{$00$} & \tiny{$01$} & \tiny{$11$} & \tiny{$10$} \\
+ & \tiny{$00$} & 1 & 1 & & \\
+$q_1 q_2$ & \tiny{$01$} & & $X$ & $X$ & \\
+ & \tiny{$11$} & & & & \\
+ & \tiny{$10$} & 1 & 1 & & \\
+\hline
+\end{tabular}
+
+$q_2^+ = E'. q_2'$
+
+$S_0$:
+\begin{tabular}{|cc|c|c|c|c|}
+\hline
+\multicolumn{6}{|c|}{$E q_0$ } \\
+ & & \tiny{$00$} & \tiny{$01$} & \tiny{$11$} & \tiny{$10$} \\
+ & \tiny{$00$} & 1 & 1 & 1 & 1 \\
+$q_1 q_2$ & \tiny{$01$} & & $X$ & $X$ & \\
+ & \tiny{$11$} & 1 & 1 & & \\
+ & \tiny{$10$} & & & & \\
+\hline
+\end{tabular}
+
+$S_0 = q_1'. q_2' + E'.q_1. q_2 $
+
+$S_1$:
+\begin{tabular}{|cc|c|c|c|c|}
+\hline
+\multicolumn{6}{|c|}{$E q_0$ } \\
+ & & \tiny{$00$} & \tiny{$01$} & \tiny{$11$} & \tiny{$10$} \\
+ & \tiny{$00$} & & & & \\
+$q_1 q_2$ & \tiny{$01$} & 1 & $X$ & $X$ & \\
+ & \tiny{$11$} & & & & \\
+ & \tiny{$10$} & 1 & 1 & 1 & 1 \\
+\hline
+\end{tabular}
+
+$S_1 = q_1. q_2' + E'.q_1'. q_2 $
+
+
+\end{multicols}
+
+\vspace{10pt}
+%\hrule
+\section{HDB1 Decoder. }
+
+\begin{figure}[H]
+\centering
+\includegraphics[scale=0.2665]{estados-hdb1_dec}
+\caption[ ]{\label{estados-hdb1_dec} State Map. }
+\end{figure}
+
+
+\begin{multicols}{2}
+
+Truth Table:
+\begin{tabular}{|cc|cc|cc|c|}
+\hline
+$e_1$ & $e_0$ & $q_1$ & $q_0$ & $q^+_0$ & $q^+_1$ & $S$ \\
+\hline
+0 & 0 & 0 & 0 & 0 & 0 & 0 \\
+0 & 0 & 0 & 1 & 0 & 0 & 1 \\
+0 & 0 & 1 & 0 & 0 & 0 & 1 \\
+0 & 0 & 1 & 1 & $X$ & $X$ & $X$ \\
+\hline
+0 & 1 & 0 & 0 & 0 & 1 & 0 \\
+0 & 1 & 0 & 1 & 0 & 0 & 0 \\
+0 & 1 & 1 & 0 & 0 & 1 & 1 \\
+0 & 1 & 1 & 1 & $X$ & $X$ & $X$ \\
+\hline
+1 & 0 & 0 & 0 & 0 & 1 & 0 \\
+1 & 0 & 0 & 1 & 1 & 0 & 1 \\
+1 & 0 & 1 & 0 & 0 & 0 & 0 \\
+1 & 0 & 1 & 1 & $X$ & $X$ & $X$ \\
+\hline
+1 & 1 & 0 & 0 & $X$ & $X$ & $X$ \\
+1 & 1 & 0 & 1 & $X$ & $X$ & $X$ \\
+1 & 1 & 1 & 0 & $X$ & $X$ & $X$ \\
+1 & 1 & 1 & 1 & $X$ & $X$ & $X$ \\
+\hline
+\end{tabular}
+
+$q0$:
+\begin{tabular}{|cc|c|c|c|c|}
+\hline
+\multicolumn{6}{|c|}{$q_1 q_0$ } \\
+ & & \tiny{$00$} & \tiny{$01$} & \tiny{$11$} & \tiny{$10$} \\
+ & \tiny{$00$} & & & $X$ & \\
+$e_0 e_1$ & \tiny{$01$} & & & $X$ & \\
+ & \tiny{$11$} & $X$ & $X$ & $X$ & $X$ \\
+ & \tiny{$10$} & & 1 & $X$ & \\
+\hline
+\end{tabular}
+
+$q_0^+ = q_0'. e_0$
+
+$q1$:
+\begin{tabular}{|cc|c|c|c|c|}
+\hline
+\multicolumn{6}{|c|}{$q_1 q_0$ } \\
+ & & \tiny{$00$} & \tiny{$01$} & \tiny{$11$} & \tiny{$10$} \\
+ & \tiny{$00$} & & & $X$ & \\
+$e_0 e_1$ & \tiny{$01$} & 1 & & $X$ & 1 \\
+ & \tiny{$11$} & $X$ & $X$ & $X$ & $X$ \\
+ & \tiny{$10$} & 1 & & $X$ & \\
+\hline
+\end{tabular}
+
+
+$q_1^+ = q_1'. e_1$
+
+$S$:
+\begin{tabular}{|cc|c|c|c|c|}
+\hline
+\multicolumn{6}{|c|}{$q_1 q_0 $ } \\
+ & & \tiny{$00$} & \tiny{$01$} & \tiny{$11$} & \tiny{$10$} \\
+ & \tiny{$00$} & & 1 & $X$ & 1 \\
+$e_1 e_2$ & \tiny{$01$} & & & $X$ & 1 \\
+ & \tiny{$11$} & $X$ & $X$ & $X$ & $X$ \\
+ & \tiny{$10$} & & 1 & $X$ & \\
+\hline
+\end{tabular}
+
+$ S = q_0. e_0' + q_1. e_1' $
+
+
+\vspace{10pt}
+
+\end{multicols}
+
+%\hrule
+
+
+\end{document}
+
Index: trunk/doc/src/estados-hdb1_dec.png
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