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+<table class="head">
+ <tr>
+ <td class="head-ltitle">LPBB(4)</td>
+ <td class="head-vol">Device Drivers Manual</td>
+ <td class="head-rtitle">LPBB(4)</td>
+ </tr>
+</table>
+<div class="manual-text">
+<section class="Sh">
+<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1>
+<p class="Pp"><code class="Nm">lpbb</code> &#x2014; <span class="Nd">parallel
+ port I2C bit-banging interface</span></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
+<p class="Pp"><code class="Cd">device iicbus</code>
+ <br/>
+ <code class="Cd">device iicbb</code></p>
+<p class="Pp">
+ <br/>
+ <code class="Cd">device lpbb</code>
+ <br/>
+ <code class="Cd">device iic</code></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
+<p class="Pp">The
+ <a class="permalink" href="#lpbb"><i class="Em" id="lpbb">lpbb</i></a>
+ driver supports the Philips official I2C parallel bit-banging interface.</p>
+<div class="Bd Pp Li">
+<pre>
+ LS05 pin 14 (Vcc) o -------
+ | | |
+ +--+--+---------------------+--+--+------------+------+-o 1 |
+ | | | | | | ===.1uF | +5V |
+ -------- [R][R][R] 3x10K 3x10K [R][R][R] LS05 | | |
+ | | | | | | | | pin 7 o-+------+-o 2 |
+ | 12 o-+--+ | | 3|\ 4 | | | (Gnd) | GND |
+ | 17 o-+-----|--|----| &gt;o-------------+--|--|--------------+ | |
+ | | | | |/ 8 /|9 | | 10 /|11 +----+-o 3 |
+ | 15 o-+-----+--|--------------o&lt; |------+--|------o&lt; |----+ | SCL |
+ | | | 1|\ 2 \| | \| | |
+ | 9 o-+--------|----| &gt;o-------------------+--------------+----+-o 4 |
+ | | | |/ 6 /|5 | | SDA |
+ | 11 o-+--------+----------------------------------o&lt; |----+ -------
+ | 10 o-+-+ \| 4-pin
+ | 13 o-+-+--oGND Connector
+ | 25 o-+-+ ------------------ Part List --------------------------
+ -------- | 1 - .1 uF capacitor | 6 - 10K 5% resistors |
+ 25-pin male D | 1 - 4-pin connector | 1 - 25-pin male D connector |
+ connector to PC | 1 - 74LS05 open collector hex inverter |
+ printer port -------------------------------------------------------</pre>
+</div>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
+ ALSO</a></h1>
+<p class="Pp"><a class="Xr">iicbb(4)</a>, <a class="Xr">iicbus(4)</a>,
+ <a class="Xr">ppbus(4)</a></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
+<p class="Pp">The <code class="Nm">lpbb</code> manual page first appeared in
+ <span class="Ux">FreeBSD 3.0</span>.</p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1>
+<p class="Pp">This manual page was written by <span class="An">Nicolas
+ Souchu</span>.</p>
+</section>
+</div>
+<table class="foot">
+ <tr>
+ <td class="foot-date">October 25, 1998</td>
+ <td class="foot-os">FreeBSD 15.0</td>
+ </tr>
+</table>