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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <title>FIR Digital Filter: struct Architecture Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="search/search.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css"/> </head> <body onload='searchBox.OnSelectItem(0);'> <!-- Generated by Doxygen 1.7.3 --> <script type="text/javascript"><!-- var searchBox = new SearchBox("searchBox", "search",false,'Search'); --></script> <div id="top"> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td style="padding-left: 0.5em;"> <div id="projectname">FIR Digital Filter</div> </td> </tr> </tbody> </table> </div> <div id="navrow1" class="tabs"> <ul class="tablist"> <li><a href="index.html"><span>Main Page</span></a></li> <li class="current"><a href="annotated.html"><span>Design Unit List</span></a></li> <li><a href="files.html"><span>Files</span></a></li> <li id="searchli"> <div id="MSearchBox" class="MSearchBoxInactive"> <span class="left"> <img id="MSearchSelect" src="search/mag_sel.png" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" alt=""/> <input type="text" id="MSearchField" value="Search" accesskey="S" onfocus="searchBox.OnSearchFieldFocus(true)" onblur="searchBox.OnSearchFieldFocus(false)" onkeyup="searchBox.OnSearchFieldChange(event)"/> </span><span class="right"> <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a> </span> </div> </li> </ul> </div> <div id="navrow2" class="tabs2"> <ul class="tablist"> <li><a href="annotated.html"><span>Class List</span></a></li> <li><a href="classes.html"><span>Design Units</span></a></li> <li><a href="hierarchy.html"><span>Design Unit Hierarchy</span></a></li> <li><a href="functions.html"><span>Design Unit Members</span></a></li> </ul> </div> <div id="nav-path" class="navpath"> <ul> <li class="navelem"><a class="el" href="classfir__filter__stage__TF.html">fir_filter_stage_TF</a> </li> <li class="navelem"><a class="el" href="classfir__filter__stage__TF_1_1struct.html">struct</a> </li> </ul> </div> </div> <div class="header"> <div class="summary"> <a href="#Components">Components</a> | <a href="#Constants">Constants</a> | <a href="#Signals">Signals</a> | <a href="#Component Instantiations">Component Instantiations</a> </div> <div class="headertitle"> <h1>struct Architecture Reference</h1> </div> </div> <div class="contents"> <!-- doxytag: class="fir_filter_stage_TF::struct" --><!-- doxytag: inherits="multiplier_gen,delay_gen,adder_gen" --><div class="dynheader"> Inheritance diagram for struct:</div> <div class="dyncontent"> <div class="center"> <img src="classfir__filter__stage__TF_1_1struct.png" usemap="#struct_map" alt=""/> <map id="struct_map" name="struct_map"> <area href="classmultiplier__gen.html" alt="multiplier_gen" shape="rect" coords="0,56,115,80"/> <area href="classdelay__gen.html" alt="delay_gen" shape="rect" coords="125,56,240,80"/> <area href="classadder__gen.html" alt="adder_gen" shape="rect" coords="250,56,365,80"/> <area href="classmultiplier__gen_1_1behave.html" alt="behave" shape="rect" coords="0,0,115,24"/> <area href="classdelay__gen_1_1behave.html" alt="behave" shape="rect" coords="125,0,240,24"/> <area href="classadder__gen_1_1behave.html" alt="behave" shape="rect" coords="250,0,365,24"/> <area href="classfir__filter__stage__TF.html" alt="fir_filter_stage_TF" shape="rect" coords="125,168,240,192"/> </map> </div></div> <p><a href="classfir__filter__stage__TF_1_1struct-members.html">List of all members.</a></p> <table class="memberdecls"> <br/> <br/> <tr><td colspan="2"><h2><a name="pub-attribs"></a> Components</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a6f9e1a961a64ab0041ac0707ee40c821"></a><!-- doxytag: member="fir_filter_stage_TF::struct::multiplier_gen" ref="a6f9e1a961a64ab0041ac0707ee40c821" args="" --> <a class="el" href="classfir__filter__stage__TF_1_1struct.html#a6f9e1a961a64ab0041ac0707ee40c821">multiplier_gen</a> </td><td class="memItemRight" valign="bottom"><b></b> <em><a class="el" href="classmultiplier__gen.html"><Entity multiplier_gen> </a></em></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ab3cadb9f82a00f0361b33c19dff6ae52"></a><!-- doxytag: member="fir_filter_stage_TF::struct::adder_gen" ref="ab3cadb9f82a00f0361b33c19dff6ae52" args="" --> <a class="el" href="classfir__filter__stage__TF_1_1struct.html#ab3cadb9f82a00f0361b33c19dff6ae52">adder_gen</a> </td><td class="memItemRight" valign="bottom"><b></b> <em><a class="el" href="classadder__gen.html"><Entity adder_gen> </a></em></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a924bfda8c3c384807bfb8ae15d7953ba"></a><!-- doxytag: member="fir_filter_stage_TF::struct::delay_gen" ref="a924bfda8c3c384807bfb8ae15d7953ba" args="" --> <a class="el" href="classfir__filter__stage__TF_1_1struct.html#a924bfda8c3c384807bfb8ae15d7953ba">delay_gen</a> </td><td class="memItemRight" valign="bottom"><b></b> <em><a class="el" href="classdelay__gen.html"><Entity delay_gen> </a></em></td></tr> <tr><td colspan="2"><h2><a name="pub-attribs"></a> Constants</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="adaa2b6c5cbc1def261e9acc0c3c7007c"></a><!-- doxytag: member="fir_filter_stage_TF::struct::width_in" ref="adaa2b6c5cbc1def261e9acc0c3c7007c" args="" --> <a class="el" href="classfir__filter__stage__TF_1_1struct.html#adaa2b6c5cbc1def261e9acc0c3c7007c">width_in</a>  </td><td class="memItemRight" valign="bottom"><b><span class="vhdlkeyword">natural</span><span class="vhdlchar"> </span><span class="vhdlchar">:</span><span class="vhdlchar">=</span><span class="vhdlchar"> </span><b><a class="el" href="classfir__filter__stage__TF.html#ab508794e1ce35c2946d28703f4ebca9f">fir_in</a></b> <span class="vhdlchar"> </span><span class="vhdlchar">'</span><span class="vhdlchar"> </span><span class="vhdlchar">length</span><span class="vhdlchar"> </span></b></td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Input bit-width. <br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a339f911ca5cb1a8748960755c77bc225"></a><!-- doxytag: member="fir_filter_stage_TF::struct::width_const" ref="a339f911ca5cb1a8748960755c77bc225" args="" --> <a class="el" href="classfir__filter__stage__TF_1_1struct.html#a339f911ca5cb1a8748960755c77bc225">width_const</a>  </td><td class="memItemRight" valign="bottom"><b><span class="vhdlkeyword">positive</span><span class="vhdlchar"> </span><span class="vhdlchar">:</span><span class="vhdlchar">=</span><span class="vhdlchar"> </span><b><a class="el" href="classfir__pkg.html#a9412e753e9f662ae363ff33d552c55ce">quantization</a></b> <span class="vhdlchar"> </span></b></td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Quantization bit-width defined in the <a class="el" href="fir__pkg_8vhd.html" title="This is the supporting package. "JUST EDIT THIS FILE".">fir_pkg.vhd</a>. <br/></td></tr> <tr><td colspan="2"><h2><a name="pub-attribs"></a> Signals</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a4205437c41382c6434ab00bb83e1a3f7"></a><!-- doxytag: member="fir_filter_stage_TF::struct::multi_add" ref="a4205437c41382c6434ab00bb83e1a3f7" args="" --> <a class="el" href="classfir__filter__stage__TF_1_1struct.html#a4205437c41382c6434ab00bb83e1a3f7">multi_add</a>  </td><td class="memItemRight" valign="bottom"><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="vhdlchar"> </span><span class="vhdlchar">order</span><span class="vhdlchar">-</span><span class="vhdldigit">1</span><span class="vhdlchar"> </span><span class="vhdlchar">)</span><span class="vhdlchar"> </span><span class="vhdlchar">*</span><span class="vhdlchar">width_out</span><span class="vhdlchar">-</span><span class="vhdldigit">1</span><span class="vhdlchar"> </span><span class="vhdlkeyword">downto</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> <tr><td class="mdescLeft"> </td><td class="mdescRight">Internal signal holding multiplier's outputs and adder's inputs. <br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a862700b81c83534570de1c1c8febd189"></a><!-- doxytag: member="fir_filter_stage_TF::struct::add_delay" ref="a862700b81c83534570de1c1c8febd189" args="" --> <a class="el" href="classfir__filter__stage__TF_1_1struct.html#a862700b81c83534570de1c1c8febd189">add_delay</a>  </td><td class="memItemRight" valign="bottom"><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="vhdlchar"> </span><span class="vhdlchar">order</span><span class="vhdlchar">-</span><span class="vhdldigit">2</span><span class="vhdlchar"> </span><span class="vhdlchar">)</span><span class="vhdlchar"> </span><span class="vhdlchar">*</span><span class="vhdlchar">width_out</span><span class="vhdlchar">-</span><span class="vhdldigit">1</span><span class="vhdlchar"> </span><span class="vhdlkeyword">downto</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> <tr><td class="mdescLeft"> </td><td class="mdescRight">Internal signal holding adder's outputs and delay's inputs. <br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="af0bb5234fc4334060df784c2d6bcd6eb"></a><!-- doxytag: member="fir_filter_stage_TF::struct::delay_add" ref="af0bb5234fc4334060df784c2d6bcd6eb" args="" --> <a class="el" href="classfir__filter__stage__TF_1_1struct.html#af0bb5234fc4334060df784c2d6bcd6eb">delay_add</a>  </td><td class="memItemRight" valign="bottom"><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="vhdlchar"> </span><span class="vhdlchar">order</span><span class="vhdlchar">-</span><span class="vhdldigit">1</span><span class="vhdlchar"> </span><span class="vhdlchar">)</span><span class="vhdlchar"> </span><span class="vhdlchar">*</span><span class="vhdlchar">width_out</span><span class="vhdlchar">-</span><span class="vhdldigit">1</span><span class="vhdlchar"> </span><span class="vhdlkeyword">downto</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> <tr><td class="mdescLeft"> </td><td class="mdescRight">Internal signal holding delay's output and adder's inputs. <br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a6fb55cb2f3a509091c7a3a04d9fe844f"></a><!-- doxytag: member="fir_filter_stage_TF::struct::multi_delay" ref="a6fb55cb2f3a509091c7a3a04d9fe844f" args="" --> <a class="el" href="classfir__filter__stage__TF_1_1struct.html#a6fb55cb2f3a509091c7a3a04d9fe844f">multi_delay</a>  </td><td class="memItemRight" valign="bottom"><b><span class="comment">std_logic_vector</span><span class="vhdlchar"> </span><span class="vhdlchar">(</span><span class="vhdlchar"> </span><span class="vhdlchar">width_out</span><span class="vhdlchar">-</span><span class="vhdldigit">1</span><span class="vhdlchar"> </span><span class="vhdlkeyword">downto</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> <tr><td class="mdescLeft"> </td><td class="mdescRight">internal signal for the left most multiplier since it is connected directly to delay <br/></td></tr> <tr><td colspan="2"><h2><a name="pub-attribs"></a> Component Instantiations</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="abd4c2cf4810e81ae22a38305fd433e1a"></a><!-- doxytag: member="fir_filter_stage_TF::struct::MULTI" ref="abd4c2cf4810e81ae22a38305fd433e1a" args="" --> <a class="el" href="classfir__filter__stage__TF_1_1struct.html#abd4c2cf4810e81ae22a38305fd433e1a">MULTI</a> </td><td class="memItemRight" valign="bottom"><b>multiplier_gen</b> <em><a class="el" href="classmultiplier__gen.html"><Entity multiplier_gen></a></em></td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Generate the filter multipliers set. <br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a5ec8e2ec5fae2030c1304157beece49f"></a><!-- doxytag: member="fir_filter_stage_TF::struct::MULTIs" ref="a5ec8e2ec5fae2030c1304157beece49f" args="" --> <a class="el" href="classfir__filter__stage__TF_1_1struct.html#a5ec8e2ec5fae2030c1304157beece49f">MULTIs</a> </td><td class="memItemRight" valign="bottom"><b>multiplier_gen</b> <em><a class="el" href="classmultiplier__gen.html"><Entity multiplier_gen></a></em></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ab73297ef7e9ada93294ea90b438e5c38"></a><!-- doxytag: member="fir_filter_stage_TF::struct::LastDELAY" ref="ab73297ef7e9ada93294ea90b438e5c38" args="" --> <a class="el" href="classfir__filter__stage__TF_1_1struct.html#ab73297ef7e9ada93294ea90b438e5c38">LastDELAY</a> </td><td class="memItemRight" valign="bottom"><b>delay_gen</b> <em><a class="el" href="classdelay__gen.html"><Entity delay_gen></a></em></td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Generate the filter delays set. <br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a608b6f687e967f2a2f299ff0e0054186"></a><!-- doxytag: member="fir_filter_stage_TF::struct::DELAYs" ref="a608b6f687e967f2a2f299ff0e0054186" args="" --> <a class="el" href="classfir__filter__stage__TF_1_1struct.html#a608b6f687e967f2a2f299ff0e0054186">DELAYs</a> </td><td class="memItemRight" valign="bottom"><b>delay_gen</b> <em><a class="el" href="classdelay__gen.html"><Entity delay_gen></a></em></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a0b2df459bab2f96d35693f23aa035b85"></a><!-- doxytag: member="fir_filter_stage_TF::struct::ADDER0" ref="a0b2df459bab2f96d35693f23aa035b85" args="" --> <a class="el" href="classfir__filter__stage__TF_1_1struct.html#a0b2df459bab2f96d35693f23aa035b85">ADDER0</a> </td><td class="memItemRight" valign="bottom"><b>adder_gen</b> <em><a class="el" href="classadder__gen.html"><Entity adder_gen></a></em></td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">Generate the filter adders set. <br/></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a6f5117e2d020b31913e8fe1f794fe13d"></a><!-- doxytag: member="fir_filter_stage_TF::struct::ADDERs" ref="a6f5117e2d020b31913e8fe1f794fe13d" args="" --> <a class="el" href="classfir__filter__stage__TF_1_1struct.html#a6f5117e2d020b31913e8fe1f794fe13d">ADDERs</a> </td><td class="memItemRight" valign="bottom"><b>adder_gen</b> <em><a class="el" href="classadder__gen.html"><Entity adder_gen></a></em></td></tr> </table> <hr/>The documentation for this class was generated from the following file:<ul> <li>src/<a class="el" href="fir__filter__stage__TF_8vhd.html">fir_filter_stage_TF.vhd</a></li> </ul> </div> <!--- window showing the filter options --> <div id="MSearchSelectWindow" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> <a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark"> </span>All</a><a 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