OpenCores
URL https://opencores.org/ocsvn/single-14-segment-display-driver-w-decoder/single-14-segment-display-driver-w-decoder/trunk

Subversion Repositories single-14-segment-display-driver-w-decoder

[/] [single-14-segment-display-driver-w-decoder/] [trunk/] [Documentation/] [html/] [class_display_driverw_decoder___top.html] - Blame information for rev 4

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 4 liubenoff 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
2 
<html xmlns="http://www.w3.org/1999/xhtml">
3 
<head>
4 
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
5 
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
6 
<meta name="generator" content="Doxygen 1.8.13"/>
7 
<meta name="viewport" content="width=device-width, initial-scale=1"/>
8 
<title>Single 14 Segment Display Driver with Limited ASCII Decoder: DisplayDriverwDecoder_Top Entity  Reference</title>
9 
<link href="tabs.css" rel="stylesheet" type="text/css"/>
10 
<script type="text/javascript" src="jquery.js"></script>
11 
<script type="text/javascript" src="dynsections.js"></script>
12 
<link href="search/search.css" rel="stylesheet" type="text/css"/>
13 
<script type="text/javascript" src="search/searchdata.js"></script>
14 
<script type="text/javascript" src="search/search.js"></script>
15 
<link href="doxygen.css" rel="stylesheet" type="text/css" />
16 
</head>
17 
<body>
18 
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
19 
<div id="titlearea">
20 
<table cellspacing="0" cellpadding="0">
21 
 <tbody>
22 
 <tr style="height: 56px;">
23 
  <td id="projectalign" style="padding-left: 0.5em;">
24 
   <div id="projectname">Single 14 Segment Display Driver with Limited ASCII Decoder
25 
   &#160;<span id="projectnumber">0.1</span>
26 
   </div>
27 
  </td>
28 
 </tr>
29 
 </tbody>
30 
</table>
31 
</div>
32 
<!-- end header part -->
33 
<!-- Generated by Doxygen 1.8.13 -->
34 
<script type="text/javascript">
35 
var searchBox = new SearchBox("searchBox", "search",false,'Search');
36 
</script>
37 
<script type="text/javascript" src="menudata.js"></script>
38 
<script type="text/javascript" src="menu.js"></script>
39 
<script type="text/javascript">
40 
$(function() {
41 
  initMenu('',true,false,'search.php','Search');
42 
  $(document).ready(function() { init_search(); });
43 
});
44 
</script>
45 
<div id="main-nav"></div>
46 
<!-- window showing the filter options -->
47 
<div id="MSearchSelectWindow"
48 
     onmouseover="return searchBox.OnSearchSelectShow()"
49 
     onmouseout="return searchBox.OnSearchSelectHide()"
50 
     onkeydown="return searchBox.OnSearchSelectKey(event)">
51 
</div>
52 
 
53 
<!-- iframe showing the search results (closed by default) -->
54 
<div id="MSearchResultsWindow">
55 
<iframe src="javascript:void(0)" frameborder="0"
56 
        name="MSearchResults" id="MSearchResults">
57 
</iframe>
58 
</div>
59 
 
60 
</div><!-- top -->
61 
<div class="header">
62 
  <div class="summary">
63 
<a href="#Ports">Ports</a> &#124;
64 
<a href="#Libraries">Libraries</a> &#124;
65 
<a href="#Use Clauses">Use Clauses</a>  </div>
66 
  <div class="headertitle">
67 
<div class="title">DisplayDriverwDecoder_Top Entity Reference</div>  </div>
68 
</div><!--header-->
69 
<div class="contents">
70 
 
71 
<p>Top entity of the display driver.
72 
 <a href="class_display_driverw_decoder___top.html#details">More...</a></p>
73 
<div class="dynheader">
74 
Inheritance diagram for DisplayDriverwDecoder_Top:</div>
75 
<div class="dyncontent">
76 
<div class="center"><img src="class_display_driverw_decoder___top__inherit__graph.png" border="0" usemap="#_display_driverw_decoder___top_inherit__map" alt="Inheritance graph"/></div>
77 
<map name="_display_driverw_decoder___top_inherit__map" id="_display_driverw_decoder___top_inherit__map">
78 
<area shape="rect" id="node2" href="class_display_driver_wrapper.html" title="DisplayDriverWrapper" alt="" coords="23,80,170,107"/>
79 
</map>
80 
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
81 
<table class="memberdecls">
82 
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
83 
Entities</h2></td></tr>
84 
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_display_driverw_decoder___top_1_1arch.html">arch</a> &#160;</td><td class="memItemRight" valign="bottom">architecture</td></tr>
85 
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Architecture definition of the <a class="el" href="class_display_driverw_decoder___top.html" title="Top entity of the display driver. ">DisplayDriverwDecoder_Top</a>.  <a href="class_display_driverw_decoder___top_1_1arch.html#details">More...</a><br /></td></tr>
86 
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
87 
</table><table class="memberdecls">
88 
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="Libraries"></a>
89 
Libraries</h2></td></tr>
90 
 <tr class="memitem:a0a6af6eef40212dbaf130d57ce711256"><td class="memItemLeft" align="right" valign="top"><a id="a0a6af6eef40212dbaf130d57ce711256"></a>
91 
<a class="el" href="class_display_driverw_decoder___top.html#a0a6af6eef40212dbaf130d57ce711256">ieee</a>&#160;</td><td class="memItemRight" valign="bottom"></td></tr>
92 
</table><table class="memberdecls">
93 
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="Use Clauses"></a>
94 
Use Clauses</h2></td></tr>
95 
 <tr class="memitem:acd03516902501cd1c7296a98e22c6fcb"><td class="memItemLeft" align="right" valign="top"><a id="acd03516902501cd1c7296a98e22c6fcb"></a>
96 
<a class="el" href="class_display_driverw_decoder___top.html#acd03516902501cd1c7296a98e22c6fcb">std_logic_1164</a>&#160;</td><td class="memItemRight" valign="bottom">  </td></tr>
97 
<tr class="memitem:a2edc34402b573437d5f25fa90ba4013e"><td class="memItemLeft" align="right" valign="top"><a id="a2edc34402b573437d5f25fa90ba4013e"></a>
98 
<a class="el" href="class_display_driverw_decoder___top.html#a2edc34402b573437d5f25fa90ba4013e">numeric_std</a>&#160;</td><td class="memItemRight" valign="bottom">  </td></tr>
99 
</table><table class="memberdecls">
100 
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="Ports"></a>
101 
Ports</h2></td></tr>
102 
 <tr class="memitem:a4a4609c199d30b3adebbeb3a01276ec5"><td class="memItemLeft" align="right" valign="top"><a id="a4a4609c199d30b3adebbeb3a01276ec5"></a>
103 
<a class="el" href="class_display_driverw_decoder___top.html#a4a4609c199d30b3adebbeb3a01276ec5">clk</a> &#160;</td><td class="memItemRight" valign="bottom"> <b><b><span class="keywordflow">in</span><span class="vhdlchar"> </span></b></b> <b><span class="comment">std_logic</span><span class="vhdlchar"> </span></b></td></tr>
104 
<tr class="memdesc:a4a4609c199d30b3adebbeb3a01276ec5"><td class="mdescLeft">&#160;</td><td class="mdescRight">input clock, xx MHz. <br /></td></tr>
105 
<tr class="memitem:aad8dc6359d9e23dabcbf342fadf2fa06"><td class="memItemLeft" align="right" valign="top"><a id="aad8dc6359d9e23dabcbf342fadf2fa06"></a>
106 
<a class="el" href="class_display_driverw_decoder___top.html#aad8dc6359d9e23dabcbf342fadf2fa06">reset</a> &#160;</td><td class="memItemRight" valign="bottom"> <b><b><span class="keywordflow">in</span><span class="vhdlchar"> </span></b></b> <b><span class="comment">std_logic</span><span class="vhdlchar"> </span></b></td></tr>
107 
<tr class="memdesc:aad8dc6359d9e23dabcbf342fadf2fa06"><td class="mdescLeft">&#160;</td><td class="mdescRight">active high <br /></td></tr>
108 
<tr class="memitem:a11737d50bbf001c0d64a327a2afca193"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_display_driverw_decoder___top.html#a11737d50bbf001c0d64a327a2afca193">ascii_in</a> &#160;</td><td class="memItemRight" valign="bottom"> <b><b><span class="keywordflow">in</span><span class="vhdlchar"> </span></b></b> <b><span class="comment">std_logic_vector</span><span class="vhdlchar"> </span><span class="vhdlchar">(</span><span class="vhdlchar"> </span><span class="vhdlchar"> </span> <span class="vhdldigit">7</span> <span class="vhdlchar"> </span><span class="keywordflow">downto</span><span class="vhdlchar"> </span><span class="vhdlchar"> </span> <span class="vhdldigit">0</span> <span class="vhdlchar"> </span><span class="vhdlchar">)</span><span class="vhdlchar"> </span></b></td></tr>
109 
<tr class="memitem:aecb25505c62077dc5327da3cd351c8cf"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_display_driverw_decoder___top.html#aecb25505c62077dc5327da3cd351c8cf">disp_data</a> &#160;</td><td class="memItemRight" valign="bottom"> <b><b><span class="keywordflow">out</span><span class="vhdlchar"> </span></b></b> <b><span class="comment">std_logic_vector</span><span class="vhdlchar"> </span><span class="vhdlchar">(</span><span class="vhdlchar"> </span><span class="vhdlchar"> </span> <span class="vhdldigit">13</span> <span class="vhdlchar"> </span><span class="keywordflow">downto</span><span class="vhdlchar"> </span><span class="vhdlchar"> </span> <span class="vhdldigit">0</span> <span class="vhdlchar"> </span><span class="vhdlchar">)</span><span class="vhdlchar"> </span></b></td></tr>
110 
<tr class="memitem:ac39d5faa22b7c7b88914e8915f901d69"><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_display_driverw_decoder___top.html#ac39d5faa22b7c7b88914e8915f901d69">disp_sel</a> &#160;</td><td class="memItemRight" valign="bottom"> <b><b><span class="keywordflow">out</span><span class="vhdlchar"> </span></b></b> <b><span class="comment">std_logic</span><span class="vhdlchar"> </span></b></td></tr>
111 
</table>
112 
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
113 
<div class="textblock"><p>Top entity of the display driver. </p>
114 
</div><h2 class="groupheader">Member Data Documentation</h2>
115 
<a id="a11737d50bbf001c0d64a327a2afca193"></a>
116 
<h2 class="memtitle"><span class="permalink"><a href="#a11737d50bbf001c0d64a327a2afca193">&#9670;&nbsp;</a></span>ascii_in</h2>
117 
 
118 
<div class="memitem">
119 
<div class="memproto">
120 
<table class="mlabels">
121 
  <tr>
122 
  <td class="mlabels-left">
123 
      <table class="memname">
124 
        <tr>
125 
          <td class="memname"><a class="el" href="class_display_driverw_decoder___top.html#a11737d50bbf001c0d64a327a2afca193">ascii_in</a> <b><span class="keywordflow">in</span><span class="vhdlchar"> </span></b> <b><span class="comment">std_logic_vector</span><span class="vhdlchar"> </span><span class="vhdlchar">(</span><span class="vhdlchar"> </span><span class="vhdlchar"> </span> <span class="vhdldigit">7</span> <span class="vhdlchar"> </span><span class="keywordflow">downto</span><span class="vhdlchar"> </span><span class="vhdlchar"> </span> <span class="vhdldigit">0</span> <span class="vhdlchar"> </span><span class="vhdlchar">)</span><span class="vhdlchar"> </span></b> </td>
126 
        </tr>
127 
      </table>
128 
  </td>
129 
  <td class="mlabels-right">
130 
<span class="mlabels"><span class="mlabel">Port</span></span>  </td>
131 
  </tr>
132 
</table>
133 
</div><div class="memdoc">
134 
<p>ASCII symbols are coded in 1B having values from 0x00 to 0x7F. Current implementation uses 104-Character ASCII Font Map described in MAX6955 Datasheet. <a href="https://datasheets.maximintegrated.com/en/ds/MAX6955.pdf">https://datasheets.maximintegrated.com/en/ds/MAX6955.pdf</a> The MSB is used to light the display dot. For example if you want to display H the code will be 0x48 (or 01001000b). If you want to display H. the code will be 0xC8 (or 11001000b). </p>
135 
 
136 
</div>
137 
</div>
138 
<a id="aecb25505c62077dc5327da3cd351c8cf"></a>
139 
<h2 class="memtitle"><span class="permalink"><a href="#aecb25505c62077dc5327da3cd351c8cf">&#9670;&nbsp;</a></span>disp_data</h2>
140 
 
141 
<div class="memitem">
142 
<div class="memproto">
143 
<table class="mlabels">
144 
  <tr>
145 
  <td class="mlabels-left">
146 
      <table class="memname">
147 
        <tr>
148 
          <td class="memname"><a class="el" href="class_display_driverw_decoder___top.html#aecb25505c62077dc5327da3cd351c8cf">disp_data</a> <b><span class="keywordflow">out</span><span class="vhdlchar"> </span></b> <b><span class="comment">std_logic_vector</span><span class="vhdlchar"> </span><span class="vhdlchar">(</span><span class="vhdlchar"> </span><span class="vhdlchar"> </span> <span class="vhdldigit">13</span> <span class="vhdlchar"> </span><span class="keywordflow">downto</span><span class="vhdlchar"> </span><span class="vhdlchar"> </span> <span class="vhdldigit">0</span> <span class="vhdlchar"> </span><span class="vhdlchar">)</span><span class="vhdlchar"> </span></b> </td>
149 
        </tr>
150 
      </table>
151 
  </td>
152 
  <td class="mlabels-right">
153 
<span class="mlabels"><span class="mlabel">Port</span></span>  </td>
154 
  </tr>
155 
</table>
156 
</div><div class="memdoc">
157 
<p>Typically the data fed to display (single or multiple) is provided for single display at a time. If multiple displays are required together with data goes display select (according typical dynamic display indication). </p>
158 
 
159 
</div>
160 
</div>
161 
<a id="ac39d5faa22b7c7b88914e8915f901d69"></a>
162 
<h2 class="memtitle"><span class="permalink"><a href="#ac39d5faa22b7c7b88914e8915f901d69">&#9670;&nbsp;</a></span>disp_sel</h2>
163 
 
164 
<div class="memitem">
165 
<div class="memproto">
166 
<table class="mlabels">
167 
  <tr>
168 
  <td class="mlabels-left">
169 
      <table class="memname">
170 
        <tr>
171 
          <td class="memname"><a class="el" href="class_display_driverw_decoder___top.html#ac39d5faa22b7c7b88914e8915f901d69">disp_sel</a> <b><span class="keywordflow">out</span><span class="vhdlchar"> </span></b> <b><span class="comment">std_logic</span><span class="vhdlchar"> </span></b> </td>
172 
        </tr>
173 
      </table>
174 
  </td>
175 
  <td class="mlabels-right">
176 
<span class="mlabels"><span class="mlabel">Port</span></span>  </td>
177 
  </tr>
178 
</table>
179 
</div><div class="memdoc">
180 
<p>If more displays needs to be fed change disp_sel to vector with length equal to number of displays. Use principles of the standard dynamic indication: provide data then enable the displays sequentially. If brightness control is desired just AND the selector and the PWM controller output. </p>
181 
 
182 
</div>
183 
</div>
184 
<hr/>The documentation for this class was generated from the following file:<ul>
185 
<li>C:/Projects/single-14-segment-display-driver-w-decoder/Project/Sources/<a class="el" href="_display_driverw_decoder___top_8vhd.html">DisplayDriverwDecoder_Top.vhd</a></li>
186 
</ul>
187 
</div><!-- contents -->
188 
<!-- start footer part -->
189 
<hr class="footer"/><address class="footer"><small>
190 
Generated by &#160;<a href="http://www.doxygen.org/index.html">
191 
<img class="footer" src="doxygen.png" alt="doxygen"/>
192 
</a> 1.8.13
193 
</small></address>
194 
</body>
195 
</html>

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.