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<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968" /><title>z8530_tx</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="Z8530 Programming Guide" /><link rel="up" href="ch10.html" title="Chapter 10. Internal Functions" /><link rel="prev" href="re23.html" title="z8530_rx" /><link rel="next" href="re25.html" title="z8530_status" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>z8530_tx</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re23.html">Prev</a> </td><th width="60%" align="center">Chapter 10. Internal Functions</th><td width="20%" align="right"> <a accesskey="n" href="re25.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="z8530_tx"><a id="API-z8530-tx"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>z8530_tx —
Handle a PIO transmit event
</p></div><div class="refsynopsisdiv" title="Synopsis"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0" class="funcprototype-table"><tr><td><code class="funcdef">void <b class="fsfunc">z8530_tx </b>(</code></td><td>struct z8530_channel * <var class="pdparam">c</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Arguments"><a id="id3027362"></a><h2>Arguments</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>c</code></em></span></dt><dd><p>
Z8530 channel to process
</p></dd></dl></div></div><div class="refsect1" title="Description"><a id="id3027388"></a><h2>Description</h2><p>
Z8530 transmit interrupt handler for the PIO mode. The basic
idea is to attempt to keep the FIFO fed. We fill as many bytes
in as possible, its quite possible that we won't keep up with the
data rate otherwise.
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