at91sam9260_sdramc.html

ATMEL AT91SAM9260的中段控制程序！

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<tr><td align="CENTER" bgcolor="#FFFFCC">7</td><td align="CENTER"><a name="SDRAMC_DBW"></a><b>SDRAMC_DBW</b><font size="-2"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_DBW">AT91C_SDRAMC_DBW</a></font></td><td><b>Data Bus Width</b><br>0: 32 bits. 1: 16bits.<font size="-1"><table bgcolor="#E3F2FF" border=1 cellpadding=0 cellspacing=0 width="100%"><null><th><b>Value</b></th><th><b>Label</b></th><th><b>Description</b></th><tr><td align="CENTER">0</td><td align="CENTER"><a name="SDRAMC_DBW_32_BITS"></a><b>SDRAMC_DBW_32_BITS</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_DBW_32_BITS">AT91C_SDRAMC_DBW_32_BITS</a></font></td><td><br>32 Bits datas bus</td></tr>
<tr><td align="CENTER">1</td><td align="CENTER"><a name="SDRAMC_DBW_16_BITS"></a><b>SDRAMC_DBW_16_BITS</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_DBW_16_BITS">AT91C_SDRAMC_DBW_16_BITS</a></font></td><td><br>16 Bits datas bus</td></tr>
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<tr><td align="CENTER" bgcolor="#FFFFCC">11..8</td><td align="CENTER"><a name="SDRAMC_TWR"></a><b>SDRAMC_TWR</b><font size="-2"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TWR">AT91C_SDRAMC_TWR</a></font></td><td><b>Number of Write Recovery Time Cycles</b><font size="-1"><table bgcolor="#E3F2FF" border=1 cellpadding=0 cellspacing=0 width="100%"><null><th><b>Value</b></th><th><b>Label</b></th><th><b>Description</b></th><tr><td align="CENTER">0</td><td align="CENTER"><a name="SDRAMC_TWR_0"></a><b>SDRAMC_TWR_0</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TWR_0">AT91C_SDRAMC_TWR_0</a></font></td><td><br>Value :  0</td></tr>
<tr><td align="CENTER">1</td><td align="CENTER"><a name="SDRAMC_TWR_1"></a><b>SDRAMC_TWR_1</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TWR_1">AT91C_SDRAMC_TWR_1</a></font></td><td><br>Value :  1</td></tr>
<tr><td align="CENTER">2</td><td align="CENTER"><a name="SDRAMC_TWR_2"></a><b>SDRAMC_TWR_2</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TWR_2">AT91C_SDRAMC_TWR_2</a></font></td><td><br>Value :  2</td></tr>
<tr><td align="CENTER">3</td><td align="CENTER"><a name="SDRAMC_TWR_3"></a><b>SDRAMC_TWR_3</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TWR_3">AT91C_SDRAMC_TWR_3</a></font></td><td><br>Value :  3</td></tr>
<tr><td align="CENTER">4</td><td align="CENTER"><a name="SDRAMC_TWR_4"></a><b>SDRAMC_TWR_4</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TWR_4">AT91C_SDRAMC_TWR_4</a></font></td><td><br>Value :  4</td></tr>
<tr><td align="CENTER">5</td><td align="CENTER"><a name="SDRAMC_TWR_5"></a><b>SDRAMC_TWR_5</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TWR_5">AT91C_SDRAMC_TWR_5</a></font></td><td><br>Value :  5</td></tr>
<tr><td align="CENTER">6</td><td align="CENTER"><a name="SDRAMC_TWR_6"></a><b>SDRAMC_TWR_6</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TWR_6">AT91C_SDRAMC_TWR_6</a></font></td><td><br>Value :  6</td></tr>
<tr><td align="CENTER">7</td><td align="CENTER"><a name="SDRAMC_TWR_7"></a><b>SDRAMC_TWR_7</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TWR_7">AT91C_SDRAMC_TWR_7</a></font></td><td><br>Value :  7</td></tr>
<tr><td align="CENTER">8</td><td align="CENTER"><a name="SDRAMC_TWR_8"></a><b>SDRAMC_TWR_8</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TWR_8">AT91C_SDRAMC_TWR_8</a></font></td><td><br>Value :  8</td></tr>
<tr><td align="CENTER">9</td><td align="CENTER"><a name="SDRAMC_TWR_9"></a><b>SDRAMC_TWR_9</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TWR_9">AT91C_SDRAMC_TWR_9</a></font></td><td><br>Value :  9</td></tr>
<tr><td align="CENTER">10</td><td align="CENTER"><a name="SDRAMC_TWR_10"></a><b>SDRAMC_TWR_10</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TWR_10">AT91C_SDRAMC_TWR_10</a></font></td><td><br>Value : 10</td></tr>
<tr><td align="CENTER">11</td><td align="CENTER"><a name="SDRAMC_TWR_11"></a><b>SDRAMC_TWR_11</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TWR_11">AT91C_SDRAMC_TWR_11</a></font></td><td><br>Value : 11</td></tr>
<tr><td align="CENTER">12</td><td align="CENTER"><a name="SDRAMC_TWR_12"></a><b>SDRAMC_TWR_12</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TWR_12">AT91C_SDRAMC_TWR_12</a></font></td><td><br>Value : 12</td></tr>
<tr><td align="CENTER">13</td><td align="CENTER"><a name="SDRAMC_TWR_13"></a><b>SDRAMC_TWR_13</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TWR_13">AT91C_SDRAMC_TWR_13</a></font></td><td><br>Value : 13</td></tr>
<tr><td align="CENTER">14</td><td align="CENTER"><a name="SDRAMC_TWR_14"></a><b>SDRAMC_TWR_14</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TWR_14">AT91C_SDRAMC_TWR_14</a></font></td><td><br>Value : 14</td></tr>
<tr><td align="CENTER">15</td><td align="CENTER"><a name="SDRAMC_TWR_15"></a><b>SDRAMC_TWR_15</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TWR_15">AT91C_SDRAMC_TWR_15</a></font></td><td><br>Value : 15</td></tr>
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<tr><td align="CENTER" bgcolor="#FFFFCC">15..12</td><td align="CENTER"><a name="SDRAMC_TRC"></a><b>SDRAMC_TRC</b><font size="-2"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRC">AT91C_SDRAMC_TRC</a></font></td><td><b>Number of RAS Cycle Time Cycles</b><font size="-1"><table bgcolor="#E3F2FF" border=1 cellpadding=0 cellspacing=0 width="100%"><null><th><b>Value</b></th><th><b>Label</b></th><th><b>Description</b></th><tr><td align="CENTER">0</td><td align="CENTER"><a name="SDRAMC_TRC_0"></a><b>SDRAMC_TRC_0</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRC_0">AT91C_SDRAMC_TRC_0</a></font></td><td><br>Value :  0</td></tr>
<tr><td align="CENTER">1</td><td align="CENTER"><a name="SDRAMC_TRC_1"></a><b>SDRAMC_TRC_1</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRC_1">AT91C_SDRAMC_TRC_1</a></font></td><td><br>Value :  1</td></tr>
<tr><td align="CENTER">2</td><td align="CENTER"><a name="SDRAMC_TRC_2"></a><b>SDRAMC_TRC_2</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRC_2">AT91C_SDRAMC_TRC_2</a></font></td><td><br>Value :  2</td></tr>
<tr><td align="CENTER">3</td><td align="CENTER"><a name="SDRAMC_TRC_3"></a><b>SDRAMC_TRC_3</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRC_3">AT91C_SDRAMC_TRC_3</a></font></td><td><br>Value :  3</td></tr>
<tr><td align="CENTER">4</td><td align="CENTER"><a name="SDRAMC_TRC_4"></a><b>SDRAMC_TRC_4</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRC_4">AT91C_SDRAMC_TRC_4</a></font></td><td><br>Value :  4</td></tr>
<tr><td align="CENTER">5</td><td align="CENTER"><a name="SDRAMC_TRC_5"></a><b>SDRAMC_TRC_5</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRC_5">AT91C_SDRAMC_TRC_5</a></font></td><td><br>Value :  5</td></tr>
<tr><td align="CENTER">6</td><td align="CENTER"><a name="SDRAMC_TRC_6"></a><b>SDRAMC_TRC_6</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRC_6">AT91C_SDRAMC_TRC_6</a></font></td><td><br>Value :  6</td></tr>
<tr><td align="CENTER">7</td><td align="CENTER"><a name="SDRAMC_TRC_7"></a><b>SDRAMC_TRC_7</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRC_7">AT91C_SDRAMC_TRC_7</a></font></td><td><br>Value :  7</td></tr>
<tr><td align="CENTER">8</td><td align="CENTER"><a name="SDRAMC_TRC_8"></a><b>SDRAMC_TRC_8</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRC_8">AT91C_SDRAMC_TRC_8</a></font></td><td><br>Value :  8</td></tr>
<tr><td align="CENTER">9</td><td align="CENTER"><a name="SDRAMC_TRC_9"></a><b>SDRAMC_TRC_9</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRC_9">AT91C_SDRAMC_TRC_9</a></font></td><td><br>Value :  9</td></tr>
<tr><td align="CENTER">10</td><td align="CENTER"><a name="SDRAMC_TRC_10"></a><b>SDRAMC_TRC_10</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRC_10">AT91C_SDRAMC_TRC_10</a></font></td><td><br>Value : 10</td></tr>
<tr><td align="CENTER">11</td><td align="CENTER"><a name="SDRAMC_TRC_11"></a><b>SDRAMC_TRC_11</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRC_11">AT91C_SDRAMC_TRC_11</a></font></td><td><br>Value : 11</td></tr>
<tr><td align="CENTER">12</td><td align="CENTER"><a name="SDRAMC_TRC_12"></a><b>SDRAMC_TRC_12</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRC_12">AT91C_SDRAMC_TRC_12</a></font></td><td><br>Value : 12</td></tr>
<tr><td align="CENTER">13</td><td align="CENTER"><a name="SDRAMC_TRC_13"></a><b>SDRAMC_TRC_13</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRC_13">AT91C_SDRAMC_TRC_13</a></font></td><td><br>Value : 13</td></tr>
<tr><td align="CENTER">14</td><td align="CENTER"><a name="SDRAMC_TRC_14"></a><b>SDRAMC_TRC_14</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRC_14">AT91C_SDRAMC_TRC_14</a></font></td><td><br>Value : 14</td></tr>
<tr><td align="CENTER">15</td><td align="CENTER"><a name="SDRAMC_TRC_15"></a><b>SDRAMC_TRC_15</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRC_15">AT91C_SDRAMC_TRC_15</a></font></td><td><br>Value : 15</td></tr>
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<tr><td align="CENTER" bgcolor="#FFFFCC">19..16</td><td align="CENTER"><a name="SDRAMC_TRP"></a><b>SDRAMC_TRP</b><font size="-2"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRP">AT91C_SDRAMC_TRP</a></font></td><td><b>Number of RAS Precharge Time Cycles</b><font size="-1"><table bgcolor="#E3F2FF" border=1 cellpadding=0 cellspacing=0 width="100%"><null><th><b>Value</b></th><th><b>Label</b></th><th><b>Description</b></th><tr><td align="CENTER">0</td><td align="CENTER"><a name="SDRAMC_TRP_0"></a><b>SDRAMC_TRP_0</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRP_0">AT91C_SDRAMC_TRP_0</a></font></td><td><br>Value :  0</td></tr>
<tr><td align="CENTER">1</td><td align="CENTER"><a name="SDRAMC_TRP_1"></a><b>SDRAMC_TRP_1</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRP_1">AT91C_SDRAMC_TRP_1</a></font></td><td><br>Value :  1</td></tr>
<tr><td align="CENTER">2</td><td align="CENTER"><a name="SDRAMC_TRP_2"></a><b>SDRAMC_TRP_2</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRP_2">AT91C_SDRAMC_TRP_2</a></font></td><td><br>Value :  2</td></tr>
<tr><td align="CENTER">3</td><td align="CENTER"><a name="SDRAMC_TRP_3"></a><b>SDRAMC_TRP_3</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRP_3">AT91C_SDRAMC_TRP_3</a></font></td><td><br>Value :  3</td></tr>
<tr><td align="CENTER">4</td><td align="CENTER"><a name="SDRAMC_TRP_4"></a><b>SDRAMC_TRP_4</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRP_4">AT91C_SDRAMC_TRP_4</a></font></td><td><br>Value :  4</td></tr>
<tr><td align="CENTER">5</td><td align="CENTER"><a name="SDRAMC_TRP_5"></a><b>SDRAMC_TRP_5</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRP_5">AT91C_SDRAMC_TRP_5</a></font></td><td><br>Value :  5</td></tr>
<tr><td align="CENTER">6</td><td align="CENTER"><a name="SDRAMC_TRP_6"></a><b>SDRAMC_TRP_6</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRP_6">AT91C_SDRAMC_TRP_6</a></font></td><td><br>Value :  6</td></tr>
<tr><td align="CENTER">7</td><td align="CENTER"><a name="SDRAMC_TRP_7"></a><b>SDRAMC_TRP_7</b><font size="-1"><br><a href="AT91SAM9260_h.html#AT91C_SDRAMC_TRP_7">AT91C_SDRAMC_TRP_7</a></font></td><td><br>Value :  7</td></tr>