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<title>AGP bus</title>

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<p align="center"><font size="5" color="#0000FF"><strong><u>AGP总线定义</u></strong></font></p>



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    <td width="100%" align="center" height="26" bgcolor="#FFC8AA"><font color="#000080">[ <a target="_self" href="hardware.htm" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware.htm">返回目录</a> ]</font></td>

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<p><font color="#008080">&nbsp;&nbsp;&nbsp; AGP 是 Accelerated Graphics Port，是 Intel 

推出的一种 3D 图形标准接口，它能够提供四倍于 PCI 的效率，AGP2X 

的传输速率达到 533MB。有关 AGP 的说明可以在 <a href="javascript:if(confirm('http://developer.intel.com/technology/agp/index.htm  \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address.  \n\nDo you want to open it from the server?'))window.location='http://developer.intel.com/technology/agp/index.htm'" tppabs="http://developer.intel.com/technology/agp/index.htm">Intel</a> 的网站上找到。</font></p>



<table border="0" width="100%" cellspacing="0" cellpadding="0" height="24">

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    <td width="100%" align="center" height="24" bgcolor="#C8C8FF"><font color="#000080">引脚定义</font></td>

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<p>　</p>



<table border="1" cellspacing="1" width="346">

  <tr>

    <th bgcolor="#0000FF" width="32"><font color="#FFFF00">Pin</font></th>

    <th bgcolor="#0000FF" width="125"><font color="#FFFF00">B面</font></th>

    <th bgcolor="#0000FF" width="171"><font color="#FFFF00">A面</font></th>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">1</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">Spare</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">12V</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">2</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">5.0V</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">Spare</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">3</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">5.0V</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">Reserved</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">4</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">USB+</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">USB-</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">5</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">Ground</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">Ground</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">6</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">INTB#</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">INTA#</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">7</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">Clock</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">RST#</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">8</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">REQ#</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">GNT#</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">9</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">Vcc3.3V</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">Vcc3.3V</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">10</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">ST0</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">ST1</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">11</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">ST2</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">Reserved</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">12</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">RBF#</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">PIPE#</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">13</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">Ground</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">Ground</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">14</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">Spare</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">Spare</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">15</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">SBA0</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">SBA1</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">16</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">Vcc3.3V</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">Vcc3.3V</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">17</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">SBA2</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">SBA3</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">18</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">SB_STB</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">Reserved</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">19</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">Ground</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">Ground</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">20</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">SBA4</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">SBA5</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">21</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">SBA6</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">SBA7</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">22</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">Key</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">Key</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">23</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">Key</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">Key</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">24</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">Key</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">Key</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">25</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">Key</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">Key</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">26</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">Address31</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">Address30</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">27</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">Address29</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">Address28</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">28</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">Vcc3.3V</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">Vcc3.3V</font></td>

  </tr>

  <tr>

    <td bgcolor="#C8C8FF" width="32"><font color="#0000FF">29</font></td>

    <td bgcolor="#C8C8FF" width="125"><font color="#0000FF">Address27</font></td>

    <td bgcolor="#C8C8FF" width="171"><font color="#0000FF">Address26</font></td>

  </tr>

  <tr>
12

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