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-<table class="head">
- <tr>
- <td class="head-ltitle">CLMPCC(4)</td>
- <td class="head-vol">Device Drivers Manual (mvme68k)</td>
- <td class="head-rtitle">CLMPCC(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">clmpcc</code> &#x2014; <span class="Nd">Cirrus
- Logic CD2400/CD2401 serial communications controller</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">clmpcc0 at pcctwo? ipl 4</code></p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
-<p class="Pp">The <code class="Nm">clmpcc</code> driver provides support for the
- Cirrus Logic CD2401 Multi-protocol Communications Controller found on
- Motorola MVME167 and MVME177 single-board computers.</p>
-<p class="Pp">The chip integrates four serial channels in one package, with each
- channel being completely independent and capable of running in Async (with
- optional DMA control), Bisync, HDLC/SDLC and X.21 modes. Each channel has 32
- bytes of FIFO, split into 16 bytes for the Tx side and 16 bytes for the Rx
- side.</p>
-<p class="Pp">At the present time, the <code class="Nm">clmpcc</code> driver
- supports the non-DMA Async mode of operation, using the channel FIFOs to
- maximize throughput with minimal interrupt overhead.</p>
-<p class="Pp">The Motorola MVME1x7 boards provide a 20MHz master clock to the
- device, which allows the Tx and Rx side to be independently set to any baud
- rate in the range 50 to 57600. The device should be capable of running at a
- baud rate of 115200, however it is not a rate documented in the device's
- datasheet for Async. mode so is not recommended.</p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="FILES"><a class="permalink" href="#FILES">FILES</a></h1>
-<dl class="Bl-tag">
- <dt><span class="Pa">/dev/console</span></dt>
- <dd style="width: auto;">&#x00A0;</dd>
- <dt><span class="Pa">/dev/ttyC1</span></dt>
- <dd style="width: auto;">&#x00A0;</dd>
- <dt><span class="Pa">/dev/ttyC2</span></dt>
- <dd style="width: auto;">&#x00A0;</dd>
- <dt><span class="Pa">/dev/ttyC3</span></dt>
- <dd style="width: auto;">&#x00A0;</dd>
-</dl>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="DIAGNOSTICS"><a class="permalink" href="#DIAGNOSTICS">DIAGNOSTICS</a></h1>
-<dl class="Bl-diag">
- <dt>clmpcc%d: channel %d command timeout (idle)</dt>
- <dd>The chip failed to acknowledge a command sent to the specified
- channel.</dd>
- <dt>clmpcc%d: Failed to reset chip</dt>
- <dd>The <code class="Nm">clmpcc</code> driver was unable to determine if the
- chip completed its RESET processing.</dd>
-</dl>
-</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">mvme68k/pcctwo(4)</a>, <a class="Xr">tty(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">clmpcc</code> driver first appeared in
- <span class="Ux">NetBSD 1.4</span> and is currently under development.</p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="BUGS"><a class="permalink" href="#BUGS">BUGS</a></h1>
-<p class="Pp">The hardware flow control features of the chip are not yet fully
- supported.</p>
-</section>
-</div>
-<table class="foot">
- <tr>
- <td class="foot-date">February 17, 2017</td>
- <td class="foot-os">NetBSD 10.1</td>
- </tr>
-</table>