90 lines
4.4 KiB
HTML
90 lines
4.4 KiB
HTML
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<!doctype HTML public "-//W3C//DTD HTML 4.0 Frameset//EN">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
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<meta name="generator" content="Adobe RoboHelp 9">
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<title>AND</title>
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<link rel="StyleSheet" href="HtmlHelp.css" type="text/css">
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<style title="hcp" type="text/css">
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<!--
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p.hcp1 { font-size:10pt; }
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font.hcp2 { font-family:Arial; }
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font.hcp3 { font-size:small; }
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span.hcp4 { font-weight:bold; }
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td.hcp5 { vertical-align:TOP;
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padding-left:1px;
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padding-top:1px;
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padding-right:1px;
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padding-bottom:1px; }
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p.hcp6 { text-align:center;
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margin-bottom:0; }
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-->
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</style>
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</head>
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<body>
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<h1 class="firstHeading">AND</h1>
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<p class="hcp1">A logic AND gate takes two or more logic-level
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inputs and produces a single logic-level output. Because the output is
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also a logic level, an output of one logic gate can connect to the input
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of one or more other logic gates. Two outputs cannot be connected together,
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however, as they may be attempting to produce different logic values.
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The AND logic object is a digital logic gate that implements logical conjunction
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- it behaves according to the truth table below. A HIGH output (1) results
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from both the inputs to the AND gate being HIGH (1). If neither or only
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one input to the AND gate is HIGH, a LOW output results.</p>
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<p class="hcp1">The lights on the logic object design block
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indicate the current state of the inputs and output. These are operational
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in simulation and when online to the device.</p>
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<p><font face="Arial" class="hcp2"><font size="3" class="hcp3"><font
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color="#333399"><span class="hcp4">AND Truth Table</span></font></font></font></p>
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<table wrapperparagraphselector="P" style="margin-top: 14pt; border-collapse: separate;
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border-collapse: separate;" cellspacing="2" width="20%" border="1">
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<tr>
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<td class="hcp5"><p class="hcp6"><font face="Arial" class="hcp2"><font size="3" class="hcp3"><font
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color="#000000">A</font></font></font></p></td>
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<td class="hcp5"><p class="hcp6"><font face="Arial" class="hcp2"><font size="3" class="hcp3"><font
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color="#000000">B</font></font></font></p></td>
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<td class="hcp5"><p class="hcp6"><font face="Arial" class="hcp2"><font size="3" class="hcp3"><font
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color="#000000">O/P</font></font></font></p></td>
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</tr>
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<tr>
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<td class="hcp5"><p class="hcp6"><font face="Arial" class="hcp2"><font size="3" class="hcp3"><font
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color="#000000">0</font></font></font></p></td>
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<td class="hcp5"><p class="hcp6"><font face="Arial" class="hcp2"><font size="3" class="hcp3"><font
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color="#000000">0</font></font></font></p></td>
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<td class="hcp5"><p class="hcp6"><font face="Arial" class="hcp2"><font size="3" class="hcp3"><font
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color="#000000">0</font></font></font></p></td>
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</tr>
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<tr>
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<td class="hcp5"><p class="hcp6"><font face="Arial" class="hcp2"><font size="3" class="hcp3"><font
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color="#000000">0</font></font></font></p></td>
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<td class="hcp5"><p class="hcp6"> 1</p></td>
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<td class="hcp5"><p class="hcp6"><font face="Arial" class="hcp2"><font size="3" class="hcp3"><font
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color="#000000">0</font></font></font></p></td>
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</tr>
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<tr>
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<td class="hcp5"><p class="hcp6"> 1</p></td>
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<td class="hcp5"><p class="hcp6"><font face="Arial" class="hcp2"><font size="3" class="hcp3"><font
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color="#000000">0</font></font></font></p></td>
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<td class="hcp5"><p class="hcp6"><font face="Arial" class="hcp2"><font size="3" class="hcp3"><font
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color="#000000">0</font></font></font></p></td>
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</tr>
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<tr>
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<td class="hcp5"><p class="hcp6"> 1</p></td>
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<td class="hcp5"><p class="hcp6">1</p></td>
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<td class="hcp5"><p class="hcp6">1</p></td>
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</tr>
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</table>
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<p><font face="Arial" class="hcp2"><font size="3" class="hcp3"><font
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color="#333399"><span class="hcp4">Properties</span></font></font></font></p>
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<p><font face="Arial" class="hcp2"><font size="3" class="hcp3"><img src="MAIN00000148.gif" alt="MAIN00000148.gif" title="MAIN00000148.gif" style="margin-top: 0px; margin-bottom: 0px; margin-left: 0px; margin-right: 0px;" width="302" height="162" border="0"></font></font></p>
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<p><font face="Arial" class="hcp2"><font size="3" class="hcp3"><font
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color="#000000"><span class="hcp4">Number of Inputs</span></font></font></font></p>
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<p style="margin-bottom: 0;"><font style="font-size: 10pt;" size="2">Sets
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the number of inputs. This is selectable from 2 to 32.</font></p>
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</body>
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</html>
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