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    Write (Active on all memory write cycles)</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">C11</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">SD08</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><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 style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">Data 

    bit 8</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">C12</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">SD09</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><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 style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">Data 

    bit 9</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">C13</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">SD10</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><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 style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">Data 

    bit 10</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">C14</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">SD11</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><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 style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">Data 

    bit 11</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">C15</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">SD12</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><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 style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">Data 

    bit 12</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">C16</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">SD13</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><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 style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">Data 

    bit 13</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">C17</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">SD14</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><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 style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">Data 

    bit 14</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">C18</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">SD15</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><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 style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">Data 

    bit 15</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">D1</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">/MEMCS16</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><img src="arrowl.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowl.gif" alt="&lt;--" WIDTH="32" HEIGHT="9"></font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">Memory 

    16-bit chip select (1 wait, 16-bit memory cycle)</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">D2</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">/IOCS16</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><img src="arrowl.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowl.gif" alt="&lt;--" WIDTH="32" HEIGHT="9"></font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">I/O 

    16-bit chip select (1 wait, 16-bit I/O cycle)</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">D3</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">IRQ10</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><img src="arrowl.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowl.gif" alt="&lt;--" WIDTH="32" HEIGHT="9"></font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">Interrupt 

    Request 10</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">D4</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">IRQ11</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><img src="arrowl.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowl.gif" alt="&lt;--" WIDTH="32" HEIGHT="9"></font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">Interrupt 

    Request 11</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">D5</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">IRQ12</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><img src="arrowl.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowl.gif" alt="&lt;--" WIDTH="32" HEIGHT="9"></font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">Interrupt 

    Request 12</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">D6</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">IRQ15</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><img src="arrowl.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowl.gif" alt="&lt;--" WIDTH="32" HEIGHT="9"></font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">Interrupt 

    Request 15</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">D7</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">IRQ14</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><img src="arrowl.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowl.gif" alt="&lt;--" WIDTH="32" HEIGHT="9"></font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">Interrupt 

    Request 14</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">D8</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">/DACK0</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><img src="arrowr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowr.gif" alt="--&gt;" WIDTH="32" HEIGHT="9"></font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">DMA 

    Acknowledge 0</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">D9</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">DRQ0</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><img src="arrowl.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowl.gif" alt="&lt;--" WIDTH="32" HEIGHT="9"></font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">DMA 

    Request 0</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">D10</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">/DACK5</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><img src="arrowr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowr.gif" alt="--&gt;" WIDTH="32" HEIGHT="9"></font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">DMA 

    Acknowledge 5</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">D11</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">DRQ5</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><img src="arrowl.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowl.gif" alt="&lt;--" WIDTH="32" HEIGHT="9"></font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">DMA 

    Request 5</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">D12</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">/DACK6</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><img src="arrowr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowr.gif" alt="--&gt;" WIDTH="32" HEIGHT="9"></font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">DMA 

    Acknowledge 6</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">D13</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">DRQ6</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><img src="arrowl.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowl.gif" alt="&lt;--" WIDTH="32" HEIGHT="9"></font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">DMA 

    Request 6</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">D14</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">/DACK7</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><img src="arrowr.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowr.gif" alt="--&gt;" WIDTH="32" HEIGHT="9"></font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">DMA 

    Acknowledge 7</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">D15</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">DRQ7</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><img src="arrowl.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowl.gif" alt="&lt;--" WIDTH="32" HEIGHT="9"></font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">DMA 

    Request 7</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">D16</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">+5 

    V</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF">　</td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF">　</td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">D17</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">/MASTER</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080"><img src="arrowl.gif" tppabs="http://linux.ustc.edu.cn/~xjiang/hardware/images/arrowl.gif" alt="&lt;--" WIDTH="32" HEIGHT="9"></font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">Used 

    with DRQ to gain control of system</font></td>

  </tr>

  <tr>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">D18</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">GND</font></td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF">　</td>

    <td style="background-color: rgb(200,200,255)" bgcolor="#C8C8FF"><font color="#008080">Ground</font></td>

  </tr>

</table>

</body>

</html>
1234

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