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[/] [rtftextcontroller/] [trunk/] [doc/] [rtftextcontroller3.html] - Blame information for rev 23

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1 23 robfinch 
<html>
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<head>
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<meta http-equiv="Content-Language" content="en-ca">
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<meta name="GENERATOR" content="Microsoft FrontPage 5.0">
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<meta name="ProgId" content="FrontPage.Editor.Document">
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<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
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<title>rtfTextController</title>
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<!--mstheme--><link rel="stylesheet" href="wate1011.css">
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<meta name="Microsoft Theme" content="water 1011, default">
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</head>
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<body>
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<p><font size="6">rtfTextController3</font></p>
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<h2>&nbsp;</h2>
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<h2><font size="5">Description</font></h2>
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<p><font size="4">This is a text mode video display controller that supports
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color.  The controller uses several internal
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dual ported r/w memories to store text, text attributes and character bitmaps. The display memory is
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thirty-two bits wide of which only twenty seven bits are implemented, allowing 512 different
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simultaneous characters to be displayed along with 512 background and foreground
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colors. The use of internal dual ported memories means that the text
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controller does not consume any memory bandwidth from the processor.</font></p>
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<table border="1" cellpadding="0" cellspacing="0" width="91%" style="border-left: 1.5pt solid black; border-right: 1.5pt solid black; border-top: 1.5pt solid black; border-bottom: .75pt solid black; background-color: white" fpstyle="27,011111100">
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  <tr>
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    <td width="15%" style="font-weight: bold; color: white; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: 1.5pt solid black; background-color: gray">
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    Address</td>
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    <td width="85%" style="font-weight: bold; color: white; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: 1.5pt solid black; background-color: gray">
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    Description</td>
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  </tr>
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  <tr>
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    <td width="15%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
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    $FFD0_xxxx</td>
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    <td width="85%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
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    text screen and attribute memory area, currently the controller only supports a 4kx27 memory</td>
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  </tr>
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  <tr>
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    <td width="15%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
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    $FFD2_xxxx</td>
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    <td width="85%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
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    character bitmap memory, currently the controller only supports a 4k memory,
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    which allows 512 8x8 character bitmaps.</td>
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  </tr>
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  <tr>
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    <td width="15%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
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    $FFDA_00xx</td>
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    <td width="85%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
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    text controller register area</td>
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  </tr>
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  <tr>
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    <td width="15%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">&nbsp;</td>
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    <td width="85%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">&nbsp;</td>
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  </tr>
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</table>
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<p style="margin-bottom: 0">Text and Attribute Memory Layout</p>
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<table border="1" cellpadding="0" cellspacing="0" width="34%" style="border-left: 1.5pt solid black; border-right: 1.5pt solid black; border-top: 1.5pt solid black; border-bottom: .75pt solid black; background-color: white" fpstyle="27,011111100">
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  <tr>
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    <td width="21%" align="center" style="font-weight: bold; color: white; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: 1.5pt solid black; background-color: gray">
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    31&nbsp; 28</td>
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    <td width="25%" align="center" style="font-weight: bold; color: white; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: 1.5pt solid black; background-color: gray">
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    27&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 19</td>
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    <td width="25%" align="center" style="font-weight: bold; color: white; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: 1.5pt solid black; background-color: gray">
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    18&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 10</td>
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    <td width="29%" align="center" style="font-weight: bold; color: white; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: 1.5pt solid black; background-color: gray">
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    9&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
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    0</td>
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  </tr>
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  <tr>
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    <td width="21%" align="center" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
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    unimp</td>
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    <td width="25%" align="center" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
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    Bk Color</td>
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    <td width="25%" align="center" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
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    Fg Color</td>
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    <td width="29%" align="center" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
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    char code</td>
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  </tr>
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</table>
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<h2 style="margin-bottom: 0">Clocks</h2>
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<p style="margin-bottom: 0">The text video display controller uses two clocks, a
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bus timing clock (clk_i) and a video timing clock (vclk), which can be
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completely independent.</p>
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<h2><font face="Arial"><b>Register Description</b></font></h2>
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<table border="1" cellspacing="0" width="90%" style="border-left:1.5pt solid black; border-right:1.5pt solid black; border-top:1.5pt solid black; border-bottom:.75pt solid black; background-color:white" cellpadding="2" fpstyle="27,011111100" height="658">
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  <tr>
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    <td width="11%" align="center" style="font-weight: bold; color: white; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: 1.5pt solid black; background-color: gray" height="19"><font face="Arial"><b>Reg. No.</b></font></td>
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    <td width="20%" style="font-weight: bold; color: white; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: 1.5pt solid black; background-color: gray" align="right" height="19">
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    <font face="Arial">31</font><b><font face="Arial">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
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    0</font></b></td>
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    <td width="9%" style="font-weight: bold; color: white; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: 1.5pt solid black; background-color: gray" align="center" height="19">
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    <font face="Arial">R/W</font></td>
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    <td width="19%" style="font-weight: bold; color: white; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: 1.5pt solid black; background-color: gray" height="19"><font face="Arial"><b>Function</b></font></td>
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    <td width="151%" style="font-weight: bold; color: white; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: 1.5pt solid black; background-color: gray" height="19"><font face="Arial"><b>Description</b></font></td>
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  </tr>
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  <tr>
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    <td width="11%" align="center" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="17"><font face="Arial">0</font></td>
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    <td width="20%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="right" height="17"><font face="Arial">
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    -------- nnnnnnnn</font></td>
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    <td width="9%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="center" height="17">
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    <font face="Arial">RW</font></td>
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    <td width="19%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="17">
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    <font face="Arial">number of columns</font></td>
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    <td width="151%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="17"></td>
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  </tr>
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  <tr>
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    <td width="11%" align="center" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="17"><font face="Arial">1</font></td>
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    <td width="20%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="right" height="17"><font face="Arial">-------- nnnnnnnn</font></td>
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    <td width="9%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="center" height="17">
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    <font face="Arial">RW</font></td>
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    <td width="19%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="17">
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    <font face="Arial">number of row</font></td>
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    <td width="151%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="17"></td>
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  </tr>
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  <tr>
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    <td width="11%" align="center" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="35"><font face="Arial">2</font></td>
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    <td width="20%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="right" height="35">
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    <font face="Arial">---- nnnnnnnnnnnn</font></td>
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    <td width="9%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="center" height="35">
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    <font face="Arial">W</font></td>
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    <td width="19%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="35">
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    <font face="Arial">window left</font></td>
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    <td width="151%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="35">
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    <font face="Arial">Text window position- pixels before the display starts, referenced to the
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    hsync signal</font></td>
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  </tr>
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  <tr>
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    <td width="11%" align="center" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="35"><font face="Arial">3</font></td>
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    <td width="20%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="right" height="35"><font face="Arial">----
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    nnnnnnnnnnnn</font></td>
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    <td width="9%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="center" height="35">
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    <font face="Arial">W</font></td>
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    <td width="19%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="35">
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    <font face="Arial">window top</font></td>
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    <td width="151%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="35">
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    <font face="Arial">Text window position - scan lines down from the top of
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    the screen referenced to the vsync signal</font></td>
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  </tr>
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  <tr>
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    <td width="11%" align="center" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="35"><font face="Arial">4</font></td>
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    <td width="20%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="right" height="35">
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    <font face="Arial">-------- --- nnnnn</font></td>
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    <td width="9%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="center" height="35">
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    <font face="Arial">W</font></td>
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    <td width="19%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="35">
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    <font face="Arial">max scanline</font></td>
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    <td width="151%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="35">
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    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">maximum scan
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    line used to display chars</font></p>
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    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">default 7.</font></td>
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  </tr>
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  <tr>
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    <td width="11%" align="center" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="53"><font face="Arial">5</font></td>
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    <td width="20%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="right" height="53"><font face="Arial">--------
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    hhhh wwww</font></td>
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    <td width="9%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="center" height="53">
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    <font face="Arial">W</font></td>
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    <td width="19%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="53">
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    <font face="Arial">pixel size</font></td>
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    <td width="151%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="53">
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    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">pixel size in
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    video clocks and scan lines</font></p>
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    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">default is 1
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    (2 video clocks per pixel) and 1 (two video scan lines per pixel).</font></td>
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  </tr>
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  <tr>
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    <td width="11%" align="center" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="53">
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    <font face="Arial">7</font></td>
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    <td width="20%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="right" height="53">
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    <font face="Arial">-------n nnnnnnnn</font></td>
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    <td width="9%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="center" height="53">
178 
    <font face="Arial">W</font></td>
179 
    <td width="19%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="53">
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    <font face="Arial">Transparent Color</font></td>
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    <td width="151%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="53">
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    <font face="Arial">color value that corresponds to a transparent background
183 
    color</font></td>
184 
  </tr>
185 
  <tr>
186 
    <td width="11%" align="center" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="243">
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    <font face="Arial">8</font></td>
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    <td width="20%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="right" height="243"><font face="Arial">
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    -------T TBB sssss</font></td>
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    <td width="9%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="center" height="243">
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    <font face="Arial">W</font></td>
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    <td width="19%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="243">
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    <font face="Arial">cursor start</font></td>
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    <td width="151%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="243">
195 
    <font face="Arial">sssss=scan line cursor display starts on</font><table border="1" cellpadding="0" cellspacing="0" width="100%" height="93" style="border-left: 1.5pt solid black; border-right: 1.5pt solid black; border-top: 1.5pt solid black; border-bottom: .75pt solid black; background-color: white" fpstyle="27,011111100">
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      <tr>
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        <td width="12%" height="17" style="font-weight: bold; color: white; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: 1.5pt solid black; background-color: gray">
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        TT</td>
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        <td width="88%" height="17" style="font-weight: bold; color: white; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: 1.5pt solid black; background-color: gray">
200 
        = Cursor Type</td>
201 
      </tr>
202 
      <tr>
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        <td width="12%" height="18" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
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        00</td>
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        <td width="88%" height="18" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
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        Box</td>
207 
      </tr>
208 
      <tr>
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        <td width="12%" height="18" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
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        01</td>
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        <td width="88%" height="18" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
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        Line</td>
213 
      </tr>
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      <tr>
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        <td width="12%" height="18" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
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        10</td>
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        <td width="88%" height="18" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
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        Underscore</td>
219 
      </tr>
220 
      <tr>
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        <td width="12%" height="18" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
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        11</td>
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        <td width="88%" height="18" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
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        Asterisk</td>
225 
      </tr>
226 
    </table>
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    <table border="1" cellpadding="0" cellspacing="0" width="100%" style="border-left: 1.5pt solid black; border-right: 1.5pt solid black; border-top: 1.5pt solid black; border-bottom: .75pt solid black; background-color: white" fpstyle="27,011111100">
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      <tr>
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        <td width="11%" style="font-weight: bold; color: white; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: 1.5pt solid black; background-color: gray">
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        BB</td>
231 
        <td width="89%" style="font-weight: bold; color: white; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: 1.5pt solid black; background-color: gray">
232 
        = Cursor Blink Rate</td>
233 
      </tr>
234 
      <tr>
235 
        <td width="11%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
236 
        00</td>
237 
        <td width="89%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
238 
        no blink</td>
239 
      </tr>
240 
      <tr>
241 
        <td width="11%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
242 
        01</td>
243 
        <td width="89%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
244 
        no display</td>
245 
      </tr>
246 
      <tr>
247 
        <td width="11%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
248 
        10</td>
249 
        <td width="89%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
250 
        1/16 frame rate (4 times per second)</td>
251 
      </tr>
252 
      <tr>
253 
        <td width="11%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
254 
        11</td>
255 
        <td width="89%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
256 
        1/32 frame rate (2 times per second)</td>
257 
      </tr>
258 
    </table>
259 
    </td>
260 
  </tr>
261 
  <tr>
262 
    <td width="11%" align="center" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="17">
263 
    &nbsp;<p>&nbsp;</p>
264 
    <p>
265 
    <font face="Arial">9</font></td>
266 
    <td width="20%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="right" height="17"><font face="Arial">--------
267 
    --- eeeee</font></td>
268 
    <td width="9%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="center" height="17">
269 
    <font face="Arial">W</font></td>
270 
    <td width="19%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="17">
271 
    <font face="Arial">cursor end</font></td>
272 
    <td width="151%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="17">
273 
    <font face="Arial">scan line cursor display ends on</font></td>
274 
  </tr>
275 
  <tr>
276 
    <td width="11%" align="center" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="35">
277 
    <font face="Arial">10</font></td>
278 
    <td width="20%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="right" height="35">
279 
    <font face="Arial">aaaaaaaa aaaaaaaa</font></td>
280 
    <td width="9%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="center" height="35">
281 
    <font face="Arial">W</font></td>
282 
    <td width="19%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="35">
283 
    <font face="Arial">display offset</font></td>
284 
    <td width="151%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="35">
285 
    <font face="Arial">starting address of the text screen in the display
286 
    memory, defaults to zero</font></td>
287 
  </tr>
288 
  <tr>
289 
    <td width="11%" align="center" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="17">
290 
    <font face="Arial">11</font></td>
291 
    <td width="20%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="right" height="17">
292 
    <font face="Arial">aaaaaaaa aaaaaaaa</font></td>
293 
    <td width="9%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="center" height="17">
294 
    <font face="Arial">W</font></td>
295 
    <td width="19%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="17">
296 
    <font face="Arial">cursor position</font></td>
297 
    <td width="151%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="17">
298 
    <font face="Arial">location of the cursor in the display memory</font></td>
299 
  </tr>
300 
  <tr>
301 
    <td width="11%" align="center" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="17">
302 
    <font face="Arial">12</font></td>
303 
    <td width="20%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="right" height="17">
304 
    <font face="Arial">aaaaaaaa aaaaaaaa</font></td>
305 
    <td width="9%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="center" height="17">
306 
    <font face="Arial">R</font></td>
307 
    <td width="19%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="17">
308 
    <font face="Arial">light pen position</font></td>
309 
    <td width="151%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="17">
310 
    <font face="Arial">address of the light pen</font></td>
311 
  </tr>
312 
  <tr>
313 
    <td width="11%" align="center" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="17"></td>
314 
    <td width="20%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="right" height="17"></td>
315 
    <td width="9%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="center" height="17"></td>
316 
    <td width="19%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="17"></td>
317 
    <td width="151%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="17"></td>
318 
  </tr>
319 
  <tr>
320 
    <td width="11%" align="center" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="17"></td>
321 
    <td width="20%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="right" height="17"></td>
322 
    <td width="9%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" align="center" height="17"></td>
323 
    <td width="19%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="17"></td>
324 
    <td width="151%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white" height="17"></td>
325 
  </tr>
326 
</table>
327 
<p style="margin-bottom: 0">&nbsp;</p>
328 
<h2 style="margin-bottom: 0"><b><span lang="en-ca">Module Interface Description</span></b></h2>
329 
<p style="margin-bottom: 0"><span lang="en-ca"><font face="Arial" size="4">
330 
rtfTextController</font></span></p>
331 
<p style="margin-bottom: 0; margin-top:0"><font face="Arial">
332 
<font color="#00FF00">module</font> <span lang="en-ca">rtfTextController</span>(rst_i,
333 
clk_i,  cyc_i, stb_i,  ack<span lang="en-ca">_o</span>, w<span lang="en-ca">e_i</span>, adr<span lang="en-ca">_i</span>, d<span lang="en-ca">at_i</span>, d<span lang="en-ca">at_o,
334 
vclk, hsync, vsync, blank, border, rgbIn, rgbOut</span>);<br>
335 
<br>
336 
</font></p>
337 
<table border="1" cellspacing="3" width="90%" style="border-left:1.5pt solid black; border-right:1.5pt solid black; border-top:1.5pt solid black; border-bottom:.75pt solid black; background-color:white" fpstyle="27,011111100">
338 
  <tr>
339 
    <td width="12%" style="font-weight: bold; color: white; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: 1.5pt solid black; background-color: gray"><span lang="en-ca"><b>
340 
    <font face="Arial" color="#000080">System</font></b></span></td>
341 
    <td width="91%" style="font-weight: bold; color: white; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: 1.5pt solid black; background-color: gray"><b><font face="Arial">Description</font></b></td>
342 
  </tr>
343 
  <tr>
344 
    <td width="12%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white"><font face="Arial">rst_i</font></td>
345 
    <td width="91%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white"><font face="Arial">This signal is normally connected to the
346 
    system reset signal. It resets the <span lang="en-ca">text controller</span>
347 
    interface forcing it to the <span lang="en-ca">reset</span> state. </font>
348 
      </td>
349 
  </tr>
350 
  <tr>
351 
    <td width="12%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white"><font face="Arial">clk_i</font></td>
352 
    <td width="91%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white"><font face="Arial"><span lang="en-ca">T</span>his is usually
353 
    connected to the system clock and is used as a base timing clock for I/O
354 
    operations.</font></td>
355 
  </tr>
356 
  <tr>
357 
    <td width="103%" colspan="2" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
358 
    <font color="#000080" face="Arial">
359 
    <span lang="en-ca">Slave Port</span></font></td>
360 
  </tr>
361 
  <tr>
362 
    <td width="12%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white"><font face="Arial">cyc_i</font></td>
363 
    <td width="91%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white"><font face="Arial">indicates that a valid bus cycle is
364 
    taking place. The core will not respond to the bus unless this signal is
365 
    active.</font></td>
366 
  </tr>
367 
  <tr>
368 
    <td width="12%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
369 
    <font face="Arial">stb_i</font></td>
370 
    <td width="91%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
371 
    <font face="Arial">This strobe signal also indicates that a valid bus cycle is
372 
    taking place</font></td>
373 
  </tr>
374 
  <tr>
375 
    <td width="12%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white"><font face="Arial">ack_o</font></td>
376 
    <td width="91%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white"><font face="Arial">This signal indicates that the core has
377 
    processed the bus transaction (it is the logical and of cyc_i and stb_i).</font></td>
378 
  </tr>
379 
  <tr>
380 
    <td width="12%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white"><font face="Arial">we_i</font></td>
381 
    <td width="91%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white"><font face="Arial">This signal is used to signify a write
382 
    operation to the text controller<span lang="en-ca">.</span></font></td>
383 
  </tr>
384 
  <tr>
385 
    <td width="12%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white"><font face="Arial">adr<span lang="en-ca">_i</span></font></td>
386 
    <td width="91%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
387 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">This
388 
    <span lang="en-ca">thirty-two bit </span>address b<span lang="en-ca">us
389 
    is </span>used
390 
      to address one of <span lang="en-ca">text controller</span></font><span lang="en-ca"><font face="Arial">s'</font></span><font face="Arial"><span lang="en-ca">s</span> registers
391 
    or internal memory. (Registers are described
392 
      below). </font><span lang="en-ca">
393 
    <font face="Arial">Registers respond to the address range $FFDA_00xx</font></span></p>
394 
    </td>
395 
  </tr>
396 
  <tr>
397 
    <td width="12%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white"><font face="Arial">dat_i</font></td>
398 
    <td width="91%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white"><font face="Arial">This is the <span lang="en-ca">sixteen</span>
399 
    bit data input bus to the <span lang="en-ca">text controller</span>.</font></td>
400 
  </tr>
401 
  <tr>
402 
    <td width="12%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white"><font face="Arial">dat_o</font></td>
403 
    <td width="91%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white"><font face="Arial">This is the <span lang="en-ca">sixteen</span> bit data output bus
404 
    from the text controller.</font></td>
405 
  </tr>
406 
  <tr>
407 
    <td width="103%" colspan="2" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
408 
    <font face="Arial">
409 
    <span lang="en-ca"><font color="#000080">Video</font></span><font color="#000080"><span lang="en-ca">
410 
    Ports</span></font></font></td>
411 
    </tr>
412 
  <tr>
413 
    <td width="12%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
414 
    <font face="Arial">vclk</font></td>
415 
    <td width="91%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
416 
    <font face="Arial">This input is the video clock input. Pixel timing is derived from it.</font></td>
417 
  </tr>
418 
  <tr>
419 
    <td width="12%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
420 
    <font face="Arial">hsync</font></td>
421 
    <td width="91%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
422 
    <font face="Arial">Horizontal sync.
423 
    This input signal signals the start/end of a video scanline (end-of-line)</font></td>
424 
  </tr>
425 
  <tr>
426 
    <td width="12%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
427 
    <font face="Arial">vsync</font></td>
428 
    <td width="91%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white"><font face="Arial">
429 
    Vertical sync. This <span lang="en-ca">input </span>signal indicates
430 
    <span lang="en-ca">the end of the video frame.</span></font></td>
431 
  </tr>
432 
  <tr>
433 
    <td width="12%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
434 
    <font face="Arial">blank</font></td>
435 
    <td width="91%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white"><font face="Arial">This
436 
    input signal indicates that the display should be blanked. It is active
437 
    during the video blanking period.</font></td>
438 
  </tr>
439 
  <tr>
440 
    <td width="12%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
441 
    <font face="Arial">
442 
    <span lang="en-ca">border</span></font></td>
443 
    <td width="91%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
444 
    <font face="Arial">This input signal indicates that a border area is active.</font></td>
445 
  </tr>
446 
  <tr>
447 
    <td width="12%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
448 
    <font face="Arial">rgbIn</font></td>
449 
    <td width="91%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
450 
    <font face="Arial">This 24 bit input bus can be connected to an external RGB input. (The text
451 
    controller may display on top of the external input).</font></td>
452 
  </tr>
453 
  <tr>
454 
    <td width="12%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
455 
    <font face="Arial">rgbOut</font></td>
456 
    <td width="91%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
457 
    <font face="Arial">This output signal bus contains the 24 bit RGB display data.</font></td>
458 
  </tr>
459 
  <tr>
460 
    <td width="12%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white"><span lang="en-ca"><b>
461 
    <font face="Arial" color="#000080">Parameters</font></b></span></td>
462 
    <td width="91%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">&nbsp;</td>
463 
  </tr>
464 
  <tr>
465 
    <td width="12%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
466 
    <font face="Arial">ROWS</font></td>
467 
    <td width="91%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white"><font face="Arial">Use this parameter to specify the
468 
    default number of text rows.</font></td>
469 
  </tr>
470 
  <tr>
471 
    <td width="12%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
472 
    <font face="Arial">COLS</font></td>
473 
    <td width="91%" style="font-weight: normal; color: black; border-left-style: none; border-right-style: none; border-top-style: none; border-bottom: .75pt solid black; background-color: white">
474 
    <font face="Arial">Use this parameter to specify the default number of text columns.</font></td>
475 
  </tr>
476 
</table>
477 
<p style="margin-top: 0; margin-bottom: 0">&nbsp;</p>
478 
<hr>
479 
<p>&nbsp;</p>
480 
 
481 
<h1 style="margin-bottom: 0"><b><font size="4" face="Arial">WISHBONE Compatibility
482 
Datasheet</font></b></h1>
483 
<p style="margin-bottom: 0"><font face="Arial">The text controller core may be directly
484 
interfaced to a WISHBONE compatible bus.</font></p>
485 
<p style="margin-bottom: 0">&nbsp;</p>
486 
<table cellpadding="0" cellspacing="0" style="border-collapse: collapse; border-left-style: solid; border-left-width: 1; border-right-style: solid; border-right-width: 1; border-top-style: double; border-top-width: 3; border-bottom-style: solid; border-bottom-width: 1" width="65%">
487 
  <tr>
488 
    <td width="100%" colspan="3" bordercolor="#000000" style="border-style: solid; border-width: 1">
489 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">WISHBONE
490 
    Datasheet</font></p>
491 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">WISHBONE SoC
492 
    Architecture Specification, Revision B.3</font></td>
493 
  </tr>
494 
  <tr>
495 
    <td width="45%" bordercolor="#000000" style="border-style: solid; border-width: 1">
496 
    <p style="margin-top: 0; margin-bottom: 0">&nbsp;</td>
497 
    <td width="55%" colspan="2" bordercolor="#000000" style="border-style: solid; border-width: 1">
498 
    <p style="margin-top: 0; margin-bottom: 0">&nbsp;</td>
499 
  </tr>
500 
  <tr>
501 
    <td width="45%" bordercolor="#000000" style="border-style: solid; border-width: 1">
502 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">Description:</font></td>
503 
    <td width="55%" colspan="2" bordercolor="#000000" style="border-style: solid; border-width: 1">
504 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">
505 
    Specifications:</font></td>
506 
  </tr>
507 
  <tr>
508 
    <td width="45%" bordercolor="#000000" style="border-style: solid; border-width: 1">
509 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">General
510 
    Description:</font></td>
511 
    <td width="55%" colspan="2" bordercolor="#000000" style="border-style: solid; border-width: 1">
512 
    <p style="margin-top: 0; margin-bottom: 0"><span lang="en-ca">
513 
    rtfTextController - Text mode video display controller</span></td>
514 
  </tr>
515 
  <tr>
516 
    <td width="45%" bordercolor="#000000" style="border-style: solid; border-width: 1">
517 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">Supported
518 
    Cycles:</font></td>
519 
    <td width="55%" colspan="2" bordercolor="#000000" style="border-style: solid; border-width: 1">
520 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">SLAVE, READ /
521 
    WRITE</font></p>
522 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">SLAVE, BLOCK
523 
    READ / WRITE</font></p>
524 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">SLAVE, RMW</font></td>
525 
  </tr>
526 
  <tr>
527 
    <td width="45%" bordercolor="#000000" style="border-style: solid; border-width: 1">
528 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">Data port,
529 
    size:</font></p>
530 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">Data port,
531 
    granularity:</font></p>
532 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">Data port,
533 
    maximum operand size:</font></p>
534 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">Data transfer
535 
    ordering:</font></p>
536 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">Data transfer
537 
    sequencing</font></td>
538 
    <td width="55%" colspan="2" bordercolor="#000000" style="border-style: solid; border-width: 1">
539 
    <p style="margin-top: 0; margin-bottom: 0">32<font face="Arial">
540 
    bit</font></p>
541 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">32 bit</font></p>
542 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">
543 
    32 bit</font></p>
544 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">Little Endian</font></p>
545 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">any
546 
    (undefined)</font></td>
547 
  </tr>
548 
  <tr>
549 
    <td width="45%" bordercolor="#000000" style="border-style: solid; border-width: 1">
550 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">Clock
551 
    frequency constraints:</font></td>
552 
    <td width="55%" colspan="2" bordercolor="#000000" style="border-style: solid; border-width: 1">&nbsp;</td>
553 
  </tr>
554 
  <tr>
555 
    <td width="45%" valign="top" bordercolor="#000000" style="border-style: solid; border-width: 1">
556 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">Supported
557 
    signal list and cross reference to equivalent WISHBONE signals</font></td>
558 
    <td width="25%" valign="top" bordercolor="#000000" style="border-style: solid; border-width: 1">
559 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">Signal Name:</font></p>
560 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">ack<span lang="en-ca">_o</span></font></p>
561 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">adr<span lang="en-ca">_i(31:0)</span></font></p>
562 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">clk<span lang="en-ca">_i</span></font></p>
563 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">d<span lang="en-ca">at_i</span>(31:0)</font></p>
564 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">d<span lang="en-ca">a</span>t<span lang="en-ca">_o</span>(31:0)</font></p>
565 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">cyc<span lang="en-ca">_i</span></font></p>
566 
    <p style="margin-top: 0; margin-bottom: 0"><span lang="en-ca">stb_i</span></p>
567 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">w<span lang="en-ca">e_i</span></font></td>
568 
    <td width="30%" bordercolor="#000000" style="border-style: solid; border-width: 1">
569 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">WISHBONE
570 
    Equiv.</font></p>
571 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">ACK_O</font></p>
572 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">ADR_I()</font></p>
573 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">CLK_I</font></p>
574 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">DAT_I()</font></p>
575 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">DAT_O()</font></p>
576 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">CYC_I</font></p>
577 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">STB_I</font></p>
578 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">WE_I</font></p>
579 
    <p style="margin-top: 0; margin-bottom: 0">&nbsp;</td>
580 
  </tr>
581 
  <tr>
582 
    <td width="45%" bordercolor="#000000" style="border-style: solid; border-width: 1">
583 
    <p style="margin-top: 0; margin-bottom: 0"><font face="Arial">Special
584 
    Requirements:</font></td>
585 
    <td width="55%" colspan="2" bordercolor="#000000" style="border-style: solid; border-width: 1">
586 
    <p style="margin-top: 0; margin-bottom: 0">external sync generator</td>
587 
  </tr>
588 
</table>
589 
 
590 
<p style="margin-bottom: 0">&nbsp;</p>
591 
 
592 
<p>&nbsp;</p>
593 
 
594 
</body>
595 
 
596 
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