/td>
 <td class="td_bit" colspan="1">0</td>
</tr>
<tr>
 <td class="td_unused" colspan="1">-</td>
 <td class="td_unused" colspan="1">-</td>
 <td class="td_unused" colspan="1">-</td>
 <td class="td_unused" colspan="1">-</td>
 <td class="td_unused" colspan="1">-</td>
 <td class="td_unused" colspan="1">-</td>
 <td class="td_field" colspan="1">RX_NOT_EMPTY</td>
 <td class="td_field" colspan="1">TX_BUSY</td>
</tr>
</table>
<ul>
<li><b>
TX_BUSY
</b>[<i>ro</i>]: Indicates whether the transmitter is busy (1) or read