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font-size: 10pt;}p.whs110 {font-family: arial, sans-serif; font-size: 10pt;}h2.whs111 {font-family: arial, sans-serif; font-size: 12pt;}p.whs112 {font-family: arial, sans-serif; font-size: 10pt;}ul.whs113 {list-style: disc;}h4.whs114 {font-family: arial, sans-serif; font-size: 10pt;}p.whs115 {font-family: arial, sans-serif; font-size: 10pt;}p.whs116 {font-family: arial, sans-serif; font-size: 10pt;}p.whs117 {font-family: arial, sans-serif; font-size: 10pt;}p.whs118 {font-family: arial, sans-serif; font-size: 10pt;}p.whs119 {margin-left: 40px; font-family: arial, sans-serif; font-size: 10pt;}ul.whs120 {list-style: disc;}p.whs121 {font-family: arial, sans-serif; font-size: 10pt;}h4.whs122 {font-family: arial, sans-serif; font-size: 10pt;}p.whs123 {font-family: arial; font-size: 10pt; margin-left: 40px;}p.whs124 {font-family: arial; font-size: 10pt; margin-left: 40px;}p.whs125 {font-family: arial; font-size: 10pt; margin-left: 40px;}ul.whs126 {list-style: disc;}h4.whs127 {font-family: arial, sans-serif; font-size: 10pt;}p.whs128 {font-family: arial; font-size: 10pt; margin-left: 40px;}--></style><script><!--if (navigator.appName == "Netscape"){ var strNSS = "<style>"; strNSS += "p.whs3 {margin-top:1;margin-bottom:1; }"; strNSS += "p.whs4 {margin-top:1;margin-bottom:1; }"; strNSS += "p.whs5 {margin-top:1;margin-bottom:1; }"; strNSS += "p.whs6 {margin-top:1;margin-bottom:1; }"; strNSS +="</style>"; document.write(strNSS);}//--></script><script language="javascript" title="WebHelpInlineScript"><!--function reDo() { if (innerWidth != origWidth || innerHeight != origHeight) location.reload();}if ((parseInt(navigator.appVersion) == 4) && (navigator.appName == "Netscape")) { origWidth = innerWidth; origHeight = innerHeight; onresize = reDo;}//--></script><style><!-- div.WebHelpPopupMenu {position:absolute; left:0px; top:0px; z-index:4; visibility:hidden;} p.WebHelpNavBar {text-align:right;}--></style></head><!--(Body)==========================================================--><body><h1>Compiler Options</h1><p class="whs1">The Compiler Options page provides all the fitter options settings for the device family the fitter has selected.</p><h1 class="whs2">Fitter Options</h1><p class="whs3"><a href="#Basic Tab" style="font-family: arial, sans-serif; font-size: 10pt;"><span style="font-family: arial, sans-serif; font-size: 10pt;"><FONT SIZE=2 style="font-size:10pt;">Basic Tab</a></FONT></span></p><p class="whs4"><a href="#XPLA Advanced Options" style="font-family: arial, sans-serif; font-size: 10pt;"><span style="font-family: arial, sans-serif; font-size: 10pt;"><FONT SIZE=2 style="font-size:10pt;">XPLA3 Advanced Options</a></FONT></span></p><p class="whs5"><a href="#CoolRunner-II Advanced Options" style="font-family: arial, sans-serif; font-size: 10pt;"><span style="font-family: arial, sans-serif; font-size: 10pt;"><FONT SIZE=2 style="font-size:10pt;">CoolRunner-II Advanced Options</a></FONT></span></p><p class="whs6"><a href="#XC9500/XL/XV Advanced Options" style="font-family: arial, sans-serif; font-size: 10pt;">XC9500/XL/XV Advanced Options</a></p><h2 class="whs7"><a name="Basic Tab"></a>Basic Tab</h2><p class=whs1 style="font-family: arial, sans-serif; font-size: 10pt;">The CPLD devices have the following fitter <span style="font-weight: bold;"><B><b>Implementation Options </B></span><span style="font-weight: bold;"><B>available</B></span></b> in the <span style="font-weight: bold;"><B>Basic</B></span> tab:</p><ul> <li class=kadov-h4><h4 class="whs8">Use Multi-Level Logic Optimization</h4></li></ul><p class="whs9">This option simplifies the total number of logic expressions in a design, and then collapses the logic in order to meet user objectives such as density, speed and timing constraints. This optimization targets CPLD architecture, making it possible to collapse to the macrocell limits, reduce levels of logic, and minimize the total number of p-terms.</p><p class="whs10">Multi-level Logic Optimization optimizes all combinatorial logic arcs spanning from an input pad or register output to an output pad or register input.</p><p class="whs11">Multi-level Logic Optimization operates on combinatorial logic according to the following rules.</p><p class="whs12">If timing constraints are set, the program optimizes for speed to meet timing constraints.</p>⌨️ 快捷键说明
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