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7<TITLE>OS_GetDTCMParam</TITLE>
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11<H1 align="left">OS_GetDTCMParam <img src="../../image/NTR.gif" align="middle"><img src="../../image/TWL.gif" align="middle"></H1>
12<H2>Syntax</H2>
13<DL>
14  <DD>
15  <PRE><CODE>#include &lt;nitro/os.h&gt;</CODE></PRE>
16  <PRE><CODE>u32 OS_GetDTCMParam( void );</CODE></PRE>
17</DL>
18<H2>Arguments</H2>
19<P>None.</P>
20<H2>Return Values</H2>
21<P>Data TCM Parameter.</P>
22<H2>Description</H2>
23<P>Obtains the Data TCM parameter.</P>
24<P>This parameter contains the Data TCM base address and effective area size. You can mask with <CODE>HW_C9_TCMR_SIZE_MASK</CODE> to obtain the value that expresses area size. You can mask with <CODE>HW_C9_TCMR_BASE_MASK</CODE> to obtain the base address.</P>
25<P>The correspondence between the area size parameter and the actual size is shown below:</P>
26<TABLE border="1">
27  <TBODY>
28    <TR>
29      <TH>The obtained area size value</TH>
30      <TH>Size</TH>
31    </TR>
32    <TR>
33      <TD>HW_C9_TCMR_4KB</TD>
34      <TD>4 Kilobytes</TD>
35    </TR>
36    <TR>
37      <TD>HW_C9_TCMR_8KB</TD>
38      <TD>8KByte</TD>
39    </TR>
40    <TR>
41      <TD>HW_C9_TCMR_16KB</TD>
42      <TD>16KByte</TD>
43    </TR>
44    <TR>
45      <TD>HW_C9_TCMR_32KB</TD>
46      <TD>32KByte</TD>
47    </TR>
48    <TR>
49      <TD>HW_C9_TCMR_64KB</TD>
50      <TD>64KByte</TD>
51    </TR>
52    <TR>
53      <TD>HW_C9_TCMR_128KB</TD>
54      <TD>128KByte</TD>
55    </TR>
56    <TR>
57      <TD>HW_C9_TCMR_256KB</TD>
58      <TD>256KByte</TD>
59    </TR>
60    <TR>
61      <TD>HW_C9_TCMR_512KB</TD>
62      <TD>512KByte</TD>
63    </TR>
64    <TR>
65      <TD>HW_C9_TCMR_1MB</TD>
66      <TD>1MByte</TD>
67    </TR>
68    <TR>
69      <TD>HW_C9_TCMR_2MB</TD>
70      <TD>2MByte</TD>
71    </TR>
72    <TR>
73      <TD>HW_C9_TCMR_4MB</TD>
74      <TD>4MByte</TD>
75    </TR>
76    <TR>
77      <TD>HW_C9_TCMR_8MB</TD>
78      <TD>8MByte</TD>
79    </TR>
80    <TR>
81      <TD>HW_C9_TCMR_16MB</TD>
82      <TD>16MByte</TD>
83    </TR>
84    <TR>
85      <TD>HW_C9_TCMR_32MB</TD>
86      <TD>32MByte</TD>
87    </TR>
88    <TR>
89      <TD>HW_C9_TCMR_64MB</TD>
90      <TD>64MByte</TD>
91    </TR>
92    <TR>
93      <TD>HW_C9_TCMR_128MB</TD>
94      <TD>128MByte</TD>
95    </TR>
96    <TR>
97      <TD>HW_C9_TCMR_256MB</TD>
98      <TD>256MByte</TD>
99    </TR>
100    <TR>
101      <TD>HW_C9_TCMR_512MB</TD>
102      <TD>512MByte</TD>
103    </TR>
104    <TR>
105      <TD>HW_C9_TCMR_1GB</TD>
106      <TD>1GByte</TD>
107    </TR>
108    <TR>
109      <TD>HW_C9_TCMR_2GB</TD>
110      <TD>2GByte</TD>
111    </TR>
112    <TR>
113      <TD>HW_C9_TCMR_4GB</TD>
114      <TD>4GByte</TD>
115    </TR>
116  </TBODY>
117</TABLE>
118<H2>Internal Operation</H2>
119<P>Modifies register 9 of the system control co-processor CP15.</P>
120
121<H2>See Also</H2>
122<P><CODE><A href="OS_SetDTCMParam.html">OS_SetDTCMParam</A><BR></CODE></P>
123<H2>Revision History</H2>
124<P>2004/01/15 Initial version.</P>
125<hr><p>CONFIDENTIAL</p></body>
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