1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
2<HTML>
3<HEAD>
4<META http-equiv="Content-Type" content="text/html; charset=windows-1252">
5<META name="GENERATOR" content="IBM WebSphere Studio Homepage Builder Version 7.0.0.0 for Windows">
6<META http-equiv="Content-Style-Type" content="text/css">
7<TITLE>MI_SetNDmaWordCount</TITLE>
8<LINK rel="stylesheet" href="../../css/nitro.css" type="text/css">
9</HEAD>
10<BODY>
11<H1 align="left">MI_SetNDmaWordCount <IMG src="../../image/TWL.gif" width="24" height="12" border="0" align=middle></H1>
12<H2>Syntax</H2>
13<DL>
14  <DD><CODE>#include &lt;twl/mi.h&gt;</CODE><BR>
15  <BR>
16  <CODE>void MI_SetNDmaWordCount( u32 ndmaNo, u32 wordCount );</CODE>
17  </DL>
18<H2>Arguments</H2>
19<TABLE border="1" width="100%">
20  <TBODY>
21    <TR>
22      <TD><EM><STRONG>ndmaNo</STRONG></EM></TD>
23      <TD>DMA number to configure (0-3)</TD>
24    </TR>
25    <TR>
26      <TD><EM><STRONG>wordCount</STRONG></EM></TD>
27      <TD>Word count value. (0 - 0xFFFFFF)</TD>
28    </TR>
29  </TBODY>
30</TABLE>
31<H2>Return Values</H2>
32<P>None.</P>
33<H2>Description</H2>
34<P>Sets the default transfer word count when the TWL's new DMA is running.</P>
35<P>The target is the DMA specified in <B><I>ndmaNo</I></B>. Here, the only action that's taking place is that the internal DMA config structure is being overwritten. The actual I/O registers cannot be overwritten until they are running.</P>
36<P>In <B><I>wordCount</I></B>, specify the transfer word count for each DMA startup request. Values in the range 0 - 0xFFFFFF can be set. However, specifying a 0 will set the number of words to 0x1000000.</P>
37
38
39<H2>Internal Operation</H2>
40<P>Overwrites the library's internal DMA config structure. This value will later become the value in the DMAxWCNT register.</P>
41<H2>See Also</H2>
42<P><CODE><A href="MI_GetNDmaWordCount.html">MI_GetNDmaWordCount()</A><BR></CODE></P>
43<H2>Revision History</H2>
44<P>2007/09/06 Initial version.</P>
45<hr><p>CONFIDENTIAL</p></body>
46</HTML>