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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html lang="en"><head><title>Definitions of Constants - Universal Driver Documentation</title><meta http-equiv="Content-type" content="text/html; charset=iso-8859-1"><meta name="robots" content="index,follow"><link rel="shortcut icon" href="/favicon.ico"><link rel="stylesheet" href="/dscud/style/wikiprintable.css"><script type="text/javascript" src="/dscud/style/wikibits.js"></script><style type='text/css'><!--a.new, #quickbar a.new { color: #CC2200; }#quickbar { position: absolute; top: 4px; left: 4px; border-right: 1px solid gray; }#article { margin-left: 152px; margin-right: 4px; }//--></style></head><body bgcolor='#FFFFFF'><div class='titlebox'><h1 class='pagetitle'>Definitions of Constants</h1><span class='subtitle'>Universal Driver Documentation</span></div><div class='navbox'><a href="manual_Main_Page.html" class='printable' title ="Main Page">Main Page</a> || <a href="manual_Table_of_Contents.html" class='printable' title ="Table of Contents">Table_of_Contents</a> || <a href="http://www.diamondsystems.com/">Diamond Systems Website</a></div></div><div class='bodytext'>The definition of these constants is the same for both the Prometheus and Hercules (as long as the constant is supported by the board.)
<p>
<table cellpadding=5><tr ><TD valign=top><tt>XXXX_WD_TRIGGER_SCI</tt></TD><TD>1 = Watchdog counter 1 will generate SCI on time-out<br>
0 = no SCI occurs.
</TD></tr><tr ><TD valign=top><tt>XXXX_WD_TRIGGER_NMI</tt></TD><TD>1 = Watchdog counter 1 will generate NMI on time-out<br>
0 = no NMI occurs.
</TD></tr><tr ><TD valign=top><tt>XXXX_WD_TRIGGER_SMI</tt></TD><TD>1 = Watchdog counter 1 will generate SMI on time-out<br>
0 = no SMI occurs.
</TD></tr><tr ><TD valign=top><tt>XXXX_WD_TRIGGER_RESET</tt></TD><TD>1 = Watchdog counter 1 will generate a hardware reset immediately on time-out. In this case WD2 serves no purpose, since its function is to delay the assertion of hardware reset from the timeout of WD1. However a valid load value for WD2 must still be supplied to the function.<br>
0 = no hardware reset occurs now (hardware reset will still be generated upon timeout of WD2).
</TD></tr><tr ><TD valign=top><tt>XXXX_WD_WDI_ASSERT_FALLING_EDGE</tt></TD><TD>1 = WDI will retrigger the watchdog timer on a falling edge.<br>
0 = WDI will retrigger on a rising edge.
</TD></tr><tr ><TD valign=top><tt>XXXX_WD_WDO_TRIGGERED_EARLY</tt></TD><TD>1 = output on WDO will be generated one clock cycle before counter 1 times out. In this case, WDO can be used to retrigger WDI by wiring the two signals together. This causes a bypass condition that prevents the watchdog timer from ever timing out.<br>
0 = output on WDO will be generated when watchdog counter 1 times out (normal operation).
</TD></tr><tr ><TD valign=top><tt>XXXX_WD_ENABLE_WDI_ASSERTION</tt></TD><TD>1 = hardware trigger input WDI will retrigger watchdog timer circuit and reload counter 1. Software retrigger command may also be used.<br>
0 = input signal WDI is disabled; only software retrigger command may be used.
</TD></tr></table><p>
This information can also be found on page 104 of the ZFx86 Training Manual included in the \Prometheus\Docs folder on the Diamond Systems CD.
<p></div><p><em> <br> This page was last modified 10:29, 13 Feb 2004.<br>Copyright (c) 2004 Diamond Systems. All Rights Reserved.</em><!-- Time since request: 0.16 secs. --></body></html>⌨️ 快捷键说明
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