Model 100 Serial Interface: Difference between revisions

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=== IM6402 UART Theory of Operation ===
=== Serial Word Format ===


<table align="center"; border="1" style="border-width: thin; border-style: solid; border-color: blue; border-collapse: collapse;">
=== Baud Rate ===
<tr>
  <td>Name</td> <td>Description</td>
</tr>
<tr>
  <td>TR</td>  <td>Transmitter register</td>
</tr>
<tr>
  <td>TBR</td> <td>Transmitter buffer register</td>
</tr>
<tr>
  <td>TRC</td> <td>Transmitter register clock</td>
</tr>
<tr>
  <td>RRC</td> <td>Receiver register clock</td>
</tr>
<tr>
  <td>RRI</td> <td>Receiver register input</td>
</tr>
<tr>
  <td>TRO</td> <td>Transmitter register output</td>
</tr>
 
</table>


== I/O Map ==
== I/O Map ==

Revision as of 11:42, 1 February 2009

Serial Word Format

Baud Rate

I/O Map

NameDirectionPort
TX Output $C8
RX Input $C8
RTS Output $BA, bit 7
CTS Input $BB, bit 4
DSR Input $BB, bit 5
DTR Output $BA, bit 6

Direction indicates both data flow, and whether to use an IN or OUT instruction to read/write to the given pin.

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