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📁 关于单片机接口技术的文档
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<title>EISA bus</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 color="#0000FF" size="5"><strong><u>EISA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">EISA 是 Extended Industry Standard Architecture 的缩写，由 
Compaq, AST, Zenith, Tandy 等公司开发。</font></p>

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    <td width="100%" align="center" height="24" bgcolor="#C8C8FF"><font color="#000080">接口卡的外观</font></td>
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<pre><font color="#008080">+---------------------------------------------+
|            元件面                           |
|                                             |
|___________ ISA-16bit __       ISA-8bit    __|
            |||||||||||  |||||||||||||||||||  A1 正面/B1 反面
             | | | | |    | | | | | | | | |  EISA: E1 正面/F1 反面
                   C1/D1
                  G1/H1</font></pre>

<pre><font color="#008080">A,C,E,G=元件面
A,B,F,H=线路面</font></pre>

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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>

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    <th width="66" bgcolor="#0000FF"><font color="#FFFF00">Pin</font></th>
    <th width="114" bgcolor="#0000FF"><font color="#FFFF00">Name</font></th>
    <th width="50%" bgcolor="#0000FF"><font color="#FFFF00">Description</font></th>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E1</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">CMD#</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Command Phase</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E2</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">START#</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Start Phase</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E3</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">EXRDY</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">EISA Ready</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E4</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">EX32#</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">EISA Slave Size 32</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E5</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">GND</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Ground</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E6</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">KEY</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Access Key</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E7</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">EX16#</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">EISA Slave Size 16</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E8</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">SLBURST#</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Slave Burst</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E9</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">MSBURST#</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Master Burst</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E10</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">W/R#</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Write/Read</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E11</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">GND</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Ground</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E12</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">RES</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Reserved</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E13</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">RES</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Reserved</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E14</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">RES</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Reserved</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E15</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">GND</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Ground</font></td>
  </tr>
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    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E16</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">KEY</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Access Key</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E17</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">BE1#</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Byte Enable 1</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E18</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">LA31#</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Latchable Addressline 31</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E19</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">GND</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Ground</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E20</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">LA30#</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Latchable Addressline 30</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E21</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">LA28#</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Latchable Addressline 28</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E22</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">LA27#</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Latchable Addressline 27</font></td>
  </tr>
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    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E23</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">LA25#</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Latchable Addressline 25</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E24</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">GND</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Ground</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E25</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">KEY</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Access Key</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E26</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">LA15</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Latchable Addressline 15</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E27</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">LA13</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Latchable Addressline 13</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E28</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">LA12</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Latchable Addressline 12</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E29</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">LA11</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Latchable Addressline 11</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E30</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">GND</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Ground</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">E31</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">LA9</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Latchable Addressline 9</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF">　</td>
    <td width="114" bgcolor="#C8C8FF">　</td>
    <td width="50%" bgcolor="#C8C8FF">　</td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">F1</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">GND</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Ground</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">F2</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">+5V</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">+5 VDC</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">F3</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">+5V</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">+5 VDC</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">F4</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">---</font></td>
    <td width="50%" bgcolor="#C8C8FF">　</td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">F5</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">---</font></td>
    <td width="50%" bgcolor="#C8C8FF">　</td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">F6</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">KEY</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Access Key</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">F7</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">---</font></td>
    <td width="50%" bgcolor="#C8C8FF">　</td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">F8</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">---</font></td>
    <td width="50%" bgcolor="#C8C8FF">　</td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">F9</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">+12V</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">+12 VDC</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">F10</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">M/IO#</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Memory/Input-Output</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">F11</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">LOCK#</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Lock bus</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">F12</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">RES</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Reserved</font></td>
  </tr>
  <tr>
    <td width="66" bgcolor="#C8C8FF"><font color="#008080">F13</font></td>
    <td width="114" bgcolor="#C8C8FF"><font color="#008080">GND</font></td>
    <td width="50%" bgcolor="#C8C8FF"><font color="#008080">Ground</font></td>
  </tr>
  <tr>
12

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