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lcdproc/docs/lcdproc-user/drivers/t6963.docbook
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mmdolze 680891761e Analyze and document the t6963 driver:
* Add Doxygen comments (also for internal functions, shortened for API).
* Document initialization.
* Remove some unused variables and defines.
* Pass through indent.
* Remove references to LCD pins from documentation and add some warning.
2011-01-03 10:51:50 +00:00

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<sect1 id="t6963-howto">
<title>The Toshiba T6963 Driver</title>
<para>
This section talks about using LCDproc with LCD displays that use the
T6963 chipset from Toshiba. Usually, this chipset is used on big character LCD
displays that can often act as a screen.
</para>
<para>
The driver uses the text mode of the chipset with a custom font loaded which
resembles the characters from Code Page 437.
</para>
<para>
Only displays in 'Single Scan' configurations are supported. Displays configured
as 'Dual Scan' are currently not supported. Those use onboard memory differently.
Check the datasheet of your display!
</para>
<sect2 id="t6963-connections">
<title>Connections</title>
<warning>
<para>
Displays using T6963 chipset come in a variety of pin-outs and power configurations.
They usually require negative voltage for contrast and some displays have
a negative voltage generator onboard. Therefore the wiring table below does
only list signal names, not LCD pins. Be sure to get the correct datasheet
for your display and identify the pins to use!
</para>
<para>
We do not give wiring examples for power, contrast, and other control lines.
You have to figure out this from your display's datasheet!
</para>
</warning>
<table id="t6963-connections.mapping">
<title>T6963 wiring schematic</title>
<tgroup cols="5" align="left">
<colspec colname="lpt1"/>
<colspec colname="lpt2" align="right"/>
<colspec colname="base" align="center"/>
<colspec colname="lcd1"/>
<colspec colname="lcd2"/>
<thead>
<row>
<entry namest="lpt1" nameend="lpt2" align="center">Parallel port</entry>
<entry morerows="1">&lt;-&gt;</entry>
<entry namest="lcd1" nameend="lcd2" align="center">LCD</entry>
</row>
<row>
<entry>name</entry>
<entry>pin</entry>
<entry>name</entry>
<entry>pin</entry>
</row>
</thead>
<tbody>
<row>
<entry>nSTRB</entry>
<entry>1</entry>
<entry></entry>
<entry>/WR</entry>
<entry>*</entry>
</row>
<row>
<entry>D0-D7</entry>
<entry>2-9</entry>
<entry></entry>
<entry>DB0-DB7</entry>
<entry>*</entry>
</row>
<row>
<entry>nLF</entry>
<entry>14</entry>
<entry></entry>
<entry>/CE</entry>
<entry>*</entry>
</row>
<row>
<entry>INIT</entry>
<entry>16</entry>
<entry></entry>
<entry>C/D</entry>
<entry>*</entry>
</row>
<row>
<entry>nSEL</entry>
<entry>17</entry>
<entry></entry>
<entry>/RD</entry>
<entry>*</entry>
</row>
</tbody>
</tgroup>
</table>
</sect2>
<sect2 id="t6963-compiling">
<title>Compiling</title>
<para>
Make sure that the T6963 files are built when you run configure. This
can be done by specifying "--enable-drivers=all" or by
"--enable-drivers=t6963".
</para>
</sect2>
<!-- ## Toshiba T6963 driver ## -->
<sect2 id="t6963-config">
<title>Configuration in LCDd.conf</title>
<sect3 id="t6963-config-section">
<title>[t6963]</title>
<variablelist>
<varlistentry>
<term>
<property>Size</property> = &parameters.size;
</term>
<listitem><para>
set display size [default: <literal>20x6</literal>]
</para></listitem>
</varlistentry>
<varlistentry>
<term>
<property>Port</property> =
<parameter><replaceable>PORT</replaceable></parameter>
</term>
<listitem><para>
Specify the address of the parallel port the LCD is connected to.
Common values for <replaceable>PORT</replaceable> are <literal>0x278</literal>,
<literal>0x378</literal> and <literal>0x3BC</literal>.
Legal values are <literal>0x200</literal> - <literal>0x400</literal>.
If not given the default value is <literal>0x378</literal>.
</para></listitem>
</varlistentry>
<varlistentry>
<term>
<property>ECPlpt</property> = &parameters.yesdefno;
</term>
<listitem>
<para>
Is ECP mode on? [default: <literal>yes</literal>; legal: <literal>yes</literal>, <literal>no</literal>]
</para>
<para>
Despite its name, this driver does not use ECP mode of parallel port. This
option turns bi-directional mode of the port on or off. Leave this on
unless you experience problems.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<property>graphic</property> = &parameters.yesnodef;
</term>
<listitem>
<para>
Use graphic? [default: <literal>no</literal>; legal: <literal>yes</literal>, <literal>no</literal>]
</para>
<para>
Enables / disables drawing of the content of the graphic RAM. This is
currently a no-op as the driver does not make use of the graphic RAM.
</para>
</listitem>
</varlistentry>
</variablelist>
</sect3>
</sect2>
</sect1>