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<title>SCSI internal (diff)</title>
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<body bgcolor="#FFFFFF" background="back01.jpg" tppabs="http://linux.ustc.edu.cn/~xjiang/images/back01.jpg">
<p align="center"><font size="4" color="#0000FF"><strong><u>内置SCSI卡接口(差分信号方式)</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">SCSI 是 Small Computer System Interface 
的缩写，在控制器和设备侧的接口外观为 50 针公插座：</font></p>

<p><img src="conn_idc50m.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/conn_idc50m.gif" alt="50 PIN IDC MALE" WIDTH="311" HEIGHT="61"></p>

<p><font color="#008080">连接电缆为 50 针母插头：</font></p>

<p><img src="conn_idc50f.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/conn_idc50f.gif" alt="50 PIN IDC FEMALE" WIDTH="311" HEIGHT="61"></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">
  <tr>
    <th bgcolor="#0000FF"><font color="#FFFF00">Pin</font></th>
    <th bgcolor="#0000FF"><font color="#FFFF00">Name</font></th>
    <th bgcolor="#0000FF"><font color="#FFFF00">Dir</font></th>
    <th bgcolor="#0000FF"><font color="#FFFF00">Description</font></th>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">01</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">GND</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF"><img src="arrow.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrow.gif" alt="---" WIDTH="32" HEIGHT="9"></font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">Ground</font></td>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">02</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">GND</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF"><img src="arrow.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrow.gif" alt="---" WIDTH="32" HEIGHT="9"></font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">Ground</font></td>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">03</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">+DB0</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF"><img src="arrowlr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowlr.gif" alt="&lt;-&gt;" WIDTH="32" HEIGHT="9"></font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">+Data Bus 0</font></td>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">04</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">-DB0</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF"><img src="arrowlr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowlr.gif" alt="&lt;-&gt;" WIDTH="32" HEIGHT="9"></font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">-Data Bus 0</font></td>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">05</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">+DB1</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF"><img src="arrowlr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowlr.gif" alt="&lt;-&gt;" WIDTH="32" HEIGHT="9"></font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">+Data Bus 1</font></td>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">06</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">-DB1</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF"><img src="arrowlr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowlr.gif" alt="&lt;-&gt;" WIDTH="32" HEIGHT="9"></font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">-Data Bus 1</font></td>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">07</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">+DB2</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF"><img src="arrowlr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowlr.gif" alt="&lt;-&gt;" WIDTH="32" HEIGHT="9"></font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">+Data Bus 2</font></td>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">08</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">-DB2</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF"><img src="arrowlr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowlr.gif" alt="&lt;-&gt;" WIDTH="32" HEIGHT="9"></font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">-Data Bus 2</font></td>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">09</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">+DB3</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF"><img src="arrowlr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowlr.gif" alt="&lt;-&gt;" WIDTH="32" HEIGHT="9"></font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">+Data Bus 3</font></td>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">10</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">-DB3</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF"><img src="arrowlr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowlr.gif" alt="&lt;-&gt;" WIDTH="32" HEIGHT="9"></font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">-Data Bus 3</font></td>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">11</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">+DB4</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF"><img src="arrowlr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowlr.gif" alt="&lt;-&gt;" WIDTH="32" HEIGHT="9"></font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">+Data Bus 4</font></td>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">12</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">-DB4</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF"><img src="arrowlr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowlr.gif" alt="&lt;-&gt;" WIDTH="32" HEIGHT="9"></font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">-Data Bus 4</font></td>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">13</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">+DB5</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF"><img src="arrowlr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowlr.gif" alt="&lt;-&gt;" WIDTH="32" HEIGHT="9"></font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">+Data Bus 5</font></td>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">14</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">-DB5</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF"><img src="arrowlr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowlr.gif" alt="&lt;-&gt;" WIDTH="32" HEIGHT="9"></font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">-Data Bus 5</font></td>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">15</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">+DB6</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF"><img src="arrowlr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowlr.gif" alt="&lt;-&gt;" WIDTH="32" HEIGHT="9"></font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">+Data Bus 6</font></td>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">16</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">-DB6</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF"><img src="arrowlr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowlr.gif" alt="&lt;-&gt;" WIDTH="32" HEIGHT="9"></font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">-Data Bus 6</font></td>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">17</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">+DB7</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF"><img src="arrowlr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowlr.gif" alt="&lt;-&gt;" WIDTH="32" HEIGHT="9"></font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">+Data Bus 7</font></td>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">18</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">-DB7</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF"><img src="arrowlr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowlr.gif" alt="&lt;-&gt;" WIDTH="32" HEIGHT="9"></font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">-Data Bus Parity7</font></td>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">19</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">+DBP</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF"><img src="arrowlr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowlr.gif" alt="&lt;-&gt;" WIDTH="32" HEIGHT="9"></font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">+Data Bus Parity (odd Parity)</font></td>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">20</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">-DBP</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF"><img src="arrowlr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowlr.gif" alt="&lt;-&gt;" WIDTH="32" HEIGHT="9"></font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">-Data Bus Parity (odd Parity)</font></td>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">21</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">DIFFSENS</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">?</font></td>
    <td bgcolor="#C8C8FF"><font color="#0000FF">???</font></td>
  </tr>
  <tr>
    <td bgcolor="#C8C8FF"><font color="#0000FF">22</font></td>
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