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1 135 jt_eaton 
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   <meta name="KEYWORDS" content="start">
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   <meta name="Info 3" content="">
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   <meta name="date" content="2008-01-08T12:01:41-0500">
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   <meta name="robots" content="index,follow">
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 </head>
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 <body dir="ltr" lang="en-US">
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 <h1><a name="uart_rxtx"></a>SOCGEN Datasheet:<br>
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 </h1>
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 <div id="toc__inside" dir="ltr">
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 <ul>
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   <li>
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     <p style="margin-bottom: 0in;"><a href="#uart_rxtx">uart_rxtx<br>
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     </a></p>
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 <br>
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 <br>
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 <br>
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       <li>
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         <p><a href="../src/uart_rxtx.v">SourceCode <br>
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         </a></p>
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       </li>
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       <li>
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         <p style="margin-bottom: 0in;"><a href="#Parameters">Parameters<br>
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         </a></p>
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       </li>
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       <li>
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         <p style="margin-bottom: 0in;"><a href="#Interface">Interface<br>
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         </a></p>
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       </li>
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       <li>
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         <p style="margin-bottom: 0in;"><a href="#Children">Children<br>
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         </a></p>
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       </li>
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       <li>
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         <p><a href="../../html/uart_rxtx.html#TheoryofOperation">Theory of Operation<br>
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         </a></p>
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       </li>
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     </ul>
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   </li>
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 </ul>
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 </div>
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 <img style="width: 602.25px; height: 470px;" alt=""  src="../png/uart_rxtx_sym.png"><br>
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 <b><br>
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 <h2><b><a name="Parameters"></a>Parameters<br></b></h2>
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 <b><br>
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 <br>
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 </b>
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<table style="text-align: left; width: 640px; height: 120px;" border="8" cellpadding="4" cellspacing="4">
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  <tbody>
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   <tr>
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      <td style="vertical-align: top;">Name<br>      </td>
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      <td style="vertical-align: top;">default <br>      </td>
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      <td style="vertical-align: top;">Description<br></td>
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    </tr>
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   <tr>
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      <td style="vertical-align: top;">DIV<br>      </td>
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          <td style="vertical-align: top;">0<br>      </td>
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          <td style="vertical-align: top;"><br></td>
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         </tr>
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   <tr>
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      <td style="vertical-align: top;">DIV_SIZE<br>      </td>
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          <td style="vertical-align: top;">4<br>      </td>
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          <td style="vertical-align: top;"><br></td>
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         </tr>
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   <tr>
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      <td style="vertical-align: top;">PRESCALE<br>      </td>
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          <td style="vertical-align: top;">5'b01100<br>      </td>
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          <td style="vertical-align: top;"><br></td>
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         </tr>
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   <tr>
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      <td style="vertical-align: top;">PRE_SIZE<br>      </td>
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          <td style="vertical-align: top;">5<br>      </td>
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          <td style="vertical-align: top;"><br></td>
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         </tr>
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   <tr>
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      <td style="vertical-align: top;">RX_FIFO_SIZE<br>      </td>
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          <td style="vertical-align: top;">3<br>      </td>
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          <td style="vertical-align: top;"><br></td>
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         </tr>
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   <tr>
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      <td style="vertical-align: top;">RX_FIFO_WORDS<br>      </td>
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          <td style="vertical-align: top;">8<br>      </td>
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          <td style="vertical-align: top;"><br></td>
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         </tr>
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   <tr>
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      <td style="vertical-align: top;">SIZE<br>      </td>
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          <td style="vertical-align: top;">8<br>      </td>
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          <td style="vertical-align: top;"><br></td>
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         </tr>
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   <tr>
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      <td style="vertical-align: top;">TX_FIFO_SIZE<br>      </td>
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          <td style="vertical-align: top;">3<br>      </td>
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          <td style="vertical-align: top;"><br></td>
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         </tr>
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   <tr>
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      <td style="vertical-align: top;">TX_FIFO_WORDS<br>      </td>
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          <td style="vertical-align: top;">8<br>      </td>
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          <td style="vertical-align: top;"><br></td>
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         </tr>
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   </tbody>
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  </table>
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 <p><b><b><br>
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 <p><b><b><br>
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 <h2><b><b><a name="Interface"></a>Interface</b><b>&nbsp;<br>
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       <td style="vertical-align: top;">NAME<br>      </td>
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       <td style="vertical-align: top;">Type<br>      </td>
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       <td style="vertical-align: top;">Description<br>      </td>
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     </tr>
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     <tr>
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        <td style="vertical-align: top;">clk<br>      </td>
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       <td style="vertical-align: top;">input<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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     <tr>
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        <td style="vertical-align: top;">cts_pad_in<br>      </td>
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       <td style="vertical-align: top;">input<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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        <td style="vertical-align: top;">parity_enable<br>      </td>
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       <td style="vertical-align: top;">input<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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     <tr>
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        <td style="vertical-align: top;">reset<br>      </td>
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       <td style="vertical-align: top;">input<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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     <tr>
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        <td style="vertical-align: top;">rts_in<br>      </td>
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       <td style="vertical-align: top;">input<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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     <tr>
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        <td style="vertical-align: top;">rxd_data_avail_stb<br>      </td>
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       <td style="vertical-align: top;">input<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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     <tr>
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        <td style="vertical-align: top;">rxd_force_parity<br>      </td>
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       <td style="vertical-align: top;">input<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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     <tr>
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        <td style="vertical-align: top;">rxd_pad_in<br>      </td>
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       <td style="vertical-align: top;">input<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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     <tr>
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        <td style="vertical-align: top;">rxd_parity<br>      </td>
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       <td style="vertical-align: top;">input<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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        <td style="vertical-align: top;">txd_break<br>      </td>
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       <td style="vertical-align: top;">input<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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     <tr>
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        <td style="vertical-align: top;">txd_force_parity<br>      </td>
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       <td style="vertical-align: top;">input<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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     <tr>
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        <td style="vertical-align: top;">txd_load<br>      </td>
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       <td style="vertical-align: top;">input<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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     <tr>
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        <td style="vertical-align: top;">txd_parity<br>      </td>
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       <td style="vertical-align: top;">input<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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     <tr>
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        <td style="vertical-align: top;">divider_in[DIV_SIZE-1:0]<br>      </td>
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       <td style="vertical-align: top;">input<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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     <tr>
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        <td style="vertical-align: top;">txd_data_in[SIZE-1:0]<br>      </td>
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       <td style="vertical-align: top;">input<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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        <td style="vertical-align: top;">cts_out<br>      </td>
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       <td style="vertical-align: top;">output<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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     <tr>
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        <td style="vertical-align: top;">rts_pad_out<br>      </td>
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       <td style="vertical-align: top;">output<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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     <tr>
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        <td style="vertical-align: top;">rxd_data_avail<br>      </td>
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       <td style="vertical-align: top;">output<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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     <tr>
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        <td style="vertical-align: top;">rxd_parity_error<br>      </td>
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       <td style="vertical-align: top;">output<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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     <tr>
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        <td style="vertical-align: top;">rxd_stop_error<br>      </td>
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       <td style="vertical-align: top;">output<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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     <tr>
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        <td style="vertical-align: top;">txd_buffer_empty<br>      </td>
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       <td style="vertical-align: top;">output<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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     <tr>
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        <td style="vertical-align: top;">txd_pad_out<br>      </td>
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       <td style="vertical-align: top;">output<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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     <tr>
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        <td style="vertical-align: top;">rxd_data_out[SIZE-1:0]<br>      </td>
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       <td style="vertical-align: top;">output<br>      </td>
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       <td style="vertical-align: top;"><br>      </td>
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     </tr>
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   </tbody>
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  </table>
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 <p><b><b><br>
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 </b></b></p>
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 <h2><b><a name="Children"></a>Children<br></b></h2>
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 <b><br>
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 </b>
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<table style="text-align: left; width: 640px; height: 120px;" border="8" cellpadding="4" cellspacing="4">
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  <tbody>
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   <tr>
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      <td style="vertical-align: top;">Instance<br>      </td>
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      <td style="vertical-align: top;">Vendor<br>      </td>
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      <td style="vertical-align: top;">Library<br></td>
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      <td style="vertical-align: top;">Component<br></td>
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      <td style="vertical-align: top;">Version<br></td>
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    </tr>
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   <tr>
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      <td style="vertical-align: top;">serial_rcvr<br>      </td>
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      <td style="vertical-align: top;">opencores.org<br>      </td>
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      <td style="vertical-align: top;">logic<br></td>
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      <td style="vertical-align: top;">serial_rcvr<br></td>
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      <td style="vertical-align: top;">fifo<br></td>
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   <tr>
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      <td style="vertical-align: top;">cde_serial_xmit<br>      </td>
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      <td style="vertical-align: top;">opencores.org<br>      </td>
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      <td style="vertical-align: top;">cde<br></td>
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      <td style="vertical-align: top;">serial<br></td>
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      <td style="vertical-align: top;">xmit<br></td>
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   <tr>
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      <td style="vertical-align: top;">divider<br>      </td>
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      <td style="vertical-align: top;">opencores.org<br>      </td>
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      <td style="vertical-align: top;">cde<br></td>
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      <td style="vertical-align: top;">divider<br></td>
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      <td style="vertical-align: top;">def<br></td>
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   <tr>
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      <td style="vertical-align: top;">fifo<br>      </td>
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      <td style="vertical-align: top;">opencores.org<br>      </td>
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      <td style="vertical-align: top;">cde<br></td>
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      <td style="vertical-align: top;">fifo<br></td>
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      <td style="vertical-align: top;">def<br></td>
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    </tr>
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   <tr>
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      <td style="vertical-align: top;">x_divider<br>      </td>
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      <td style="vertical-align: top;">opencores.org<br>      </td>
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      <td style="vertical-align: top;">cde<br></td>
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      <td style="vertical-align: top;">divider<br></td>
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      <td style="vertical-align: top;">def<br></td>
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   <tr>
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      <td style="vertical-align: top;">filter<br>      </td>
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      <td style="vertical-align: top;">opencores.org<br>      </td>
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      <td style="vertical-align: top;">cde<br></td>
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      <td style="vertical-align: top;">sync<br></td>
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      <td style="vertical-align: top;">def<br></td>
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