at91sam7se512_efc.html

基于AT91SAM7SE512cpu的flash访问例子

<tr><td align="CENTER" bgcolor="#FFFFCC">31..24</td><td align="CENTER"><a name="MC_KEY"></a><b>MC_KEY</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_KEY">AT91C_MC_KEY</a></font></td><td><b>Writing Protect Key</b><br>This field should be written with the value 0x5A to enable the command defined by the bits of the register.<br>If the field is written with a different value, the write is actually not performed and no action is started.</td></tr>
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<a name="MC_FSR"></a><h4><a href="#EFC">EFC</a>: <i><a href="AT91SAM7SE512_h.html#AT91_REG">AT91_REG</a></i> MC_FSR  <i>MC Flash Status Register</i></h4><ul><null><font size="-2"><li><b>EFC0</b> <i><a href="AT91SAM7SE512_h.html#AT91C_EFC0_FSR">AT91C_EFC0_FSR</a></i> 0xFFFFFF68</font><font size="-2"><li><b>EFC1</b> <i><a href="AT91SAM7SE512_h.html#AT91C_EFC1_FSR">AT91C_EFC1_FSR</a></i> 0xFFFFFF78</font></null></ul><table border=1 cellpadding=0 cellspacing=0 width="100%"><null><th bgcolor="#FFFFCC"><b>Offset</b></th><th bgcolor="#FFFFCC"><b>Name</b></th><th bgcolor="#FFFFCC"><b>Description</b></th><tr><td align="CENTER" bgcolor="#FFFFCC">0</td><td align="CENTER"><a name="MC_FRDY"></a><b>MC_FRDY</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_FRDY">AT91C_MC_FRDY</a></font></td><td><b>Flash Ready</b><br>0 = FRDY high in MC_FSR does not generate an interrupt<br>1= FRDY high in MC_FSR generates an interrupt</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">2</td><td align="CENTER"><a name="MC_LOCKE"></a><b>MC_LOCKE</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_LOCKE">AT91C_MC_LOCKE</a></font></td><td><b>Lock Error</b><br>0 = LOCKE high in MC_FSR does not generate an interrupt<br>1 = LOCKE high in MC_FSR generates an interrupt</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">3</td><td align="CENTER"><a name="MC_PROGE"></a><b>MC_PROGE</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_PROGE">AT91C_MC_PROGE</a></font></td><td><b>Programming Error</b><br>0 = PROGE high in MC_FSR does not generate an interrupt<br>1 = PROGE high in MC_FSR generates an interrupt</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">4</td><td align="CENTER"><a name="MC_SECURITY"></a><b>MC_SECURITY</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_SECURITY">AT91C_MC_SECURITY</a></font></td><td><b>Security Bit Status</b><br>0: Security Bit is not set.<br> 1:Security Bit is set.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">8</td><td align="CENTER"><a name="MC_GPNVM0"></a><b>MC_GPNVM0</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_GPNVM0">AT91C_MC_GPNVM0</a></font></td><td><b>Sector 0 Lock Status</b><br>0: General purpose NVM bit is not set.<br> 1:General purpose NVM bit is set.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">9</td><td align="CENTER"><a name="MC_GPNVM1"></a><b>MC_GPNVM1</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_GPNVM1">AT91C_MC_GPNVM1</a></font></td><td><b>Sector 1 Lock Status</b><br>0: General purpose NVM bit is not set.<br> 1:General purpose NVM bit is set.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">10</td><td align="CENTER"><a name="MC_GPNVM2"></a><b>MC_GPNVM2</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_GPNVM2">AT91C_MC_GPNVM2</a></font></td><td><b>Sector 2 Lock Status</b><br>0: General purpose NVM bit is not set.<br> 1:General purpose NVM bit is set.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">11</td><td align="CENTER"><a name="MC_GPNVM3"></a><b>MC_GPNVM3</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_GPNVM3">AT91C_MC_GPNVM3</a></font></td><td><b>Sector 3 Lock Status</b><br>0: General purpose NVM bit is not set.<br> 1:General purpose NVM bit is set.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">12</td><td align="CENTER"><a name="MC_GPNVM4"></a><b>MC_GPNVM4</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_GPNVM4">AT91C_MC_GPNVM4</a></font></td><td><b>Sector 4 Lock Status</b><br>0: General purpose NVM bit is not set.<br> 1:General purpose NVM bit is set.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">13</td><td align="CENTER"><a name="MC_GPNVM5"></a><b>MC_GPNVM5</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_GPNVM5">AT91C_MC_GPNVM5</a></font></td><td><b>Sector 5 Lock Status</b><br>0: General purpose NVM bit is not set.<br> 1:General purpose NVM bit is set.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">14</td><td align="CENTER"><a name="MC_GPNVM6"></a><b>MC_GPNVM6</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_GPNVM6">AT91C_MC_GPNVM6</a></font></td><td><b>Sector 6 Lock Status</b><br>0: General purpose NVM bit is not set.<br> 1:General purpose NVM bit is set.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">15</td><td align="CENTER"><a name="MC_GPNVM7"></a><b>MC_GPNVM7</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_GPNVM7">AT91C_MC_GPNVM7</a></font></td><td><b>Sector 7 Lock Status</b><br>0: General purpose NVM bit is not set.<br> 1:General purpose NVM bit is set.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">16</td><td align="CENTER"><a name="MC_LOCKS0"></a><b>MC_LOCKS0</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_LOCKS0">AT91C_MC_LOCKS0</a></font></td><td><b>Sector 0 Lock Status</b><br>0: The corresponding sector is not locked.<br> 1:The corresponding sector is locked.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">17</td><td align="CENTER"><a name="MC_LOCKS1"></a><b>MC_LOCKS1</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_LOCKS1">AT91C_MC_LOCKS1</a></font></td><td><b>Sector 1 Lock Status</b><br>0: The corresponding sector is not locked.<br> 1:The corresponding sector is locked.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">18</td><td align="CENTER"><a name="MC_LOCKS2"></a><b>MC_LOCKS2</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_LOCKS2">AT91C_MC_LOCKS2</a></font></td><td><b>Sector 2 Lock Status</b><br>0: The corresponding sector is not locked.<br> 1:The corresponding sector is locked.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">19</td><td align="CENTER"><a name="MC_LOCKS3"></a><b>MC_LOCKS3</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_LOCKS3">AT91C_MC_LOCKS3</a></font></td><td><b>Sector 3 Lock Status</b><br>0: The corresponding sector is not locked.<br> 1:The corresponding sector is locked.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">20</td><td align="CENTER"><a name="MC_LOCKS4"></a><b>MC_LOCKS4</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_LOCKS4">AT91C_MC_LOCKS4</a></font></td><td><b>Sector 4 Lock Status</b><br>0: The corresponding sector is not locked.<br> 1:The corresponding sector is locked.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">21</td><td align="CENTER"><a name="MC_LOCKS5"></a><b>MC_LOCKS5</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_LOCKS5">AT91C_MC_LOCKS5</a></font></td><td><b>Sector 5 Lock Status</b><br>0: The corresponding sector is not locked.<br> 1:The corresponding sector is locked.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">22</td><td align="CENTER"><a name="MC_LOCKS6"></a><b>MC_LOCKS6</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_LOCKS6">AT91C_MC_LOCKS6</a></font></td><td><b>Sector 6 Lock Status</b><br>0: The corresponding sector is not locked.<br> 1:The corresponding sector is locked.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">23</td><td align="CENTER"><a name="MC_LOCKS7"></a><b>MC_LOCKS7</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_LOCKS7">AT91C_MC_LOCKS7</a></font></td><td><b>Sector 7 Lock Status</b><br>0: The corresponding sector is not locked.<br> 1:The corresponding sector is locked.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">24</td><td align="CENTER"><a name="MC_LOCKS8"></a><b>MC_LOCKS8</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_LOCKS8">AT91C_MC_LOCKS8</a></font></td><td><b>Sector 8 Lock Status</b><br>0: The corresponding sector is not locked.<br> 1:The corresponding sector is locked.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">25</td><td align="CENTER"><a name="MC_LOCKS9"></a><b>MC_LOCKS9</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_LOCKS9">AT91C_MC_LOCKS9</a></font></td><td><b>Sector 9 Lock Status</b><br>0: The corresponding sector is not locked.<br> 1:The corresponding sector is locked.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">26</td><td align="CENTER"><a name="MC_LOCKS10"></a><b>MC_LOCKS10</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_LOCKS10">AT91C_MC_LOCKS10</a></font></td><td><b>Sector 10 Lock Status</b><br>0: The corresponding sector is not locked.<br> 1:The corresponding sector is locked.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">27</td><td align="CENTER"><a name="MC_LOCKS11"></a><b>MC_LOCKS11</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_LOCKS11">AT91C_MC_LOCKS11</a></font></td><td><b>Sector 11 Lock Status</b><br>0: The corresponding sector is not locked.<br> 1:The corresponding sector is locked.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">28</td><td align="CENTER"><a name="MC_LOCKS12"></a><b>MC_LOCKS12</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_LOCKS12">AT91C_MC_LOCKS12</a></font></td><td><b>Sector 12 Lock Status</b><br>0: The corresponding sector is not locked.<br> 1:The corresponding sector is locked.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">29</td><td align="CENTER"><a name="MC_LOCKS13"></a><b>MC_LOCKS13</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_LOCKS13">AT91C_MC_LOCKS13</a></font></td><td><b>Sector 13 Lock Status</b><br>0: The corresponding sector is not locked.<br> 1:The corresponding sector is locked.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">30</td><td align="CENTER"><a name="MC_LOCKS14"></a><b>MC_LOCKS14</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_LOCKS14">AT91C_MC_LOCKS14</a></font></td><td><b>Sector 14 Lock Status</b><br>0: The corresponding sector is not locked.<br> 1:The corresponding sector is locked.</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">31</td><td align="CENTER"><a name="MC_LOCKS15"></a><b>MC_LOCKS15</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_MC_LOCKS15">AT91C_MC_LOCKS15</a></font></td><td><b>Sector 15 Lock Status</b><br>0: The corresponding sector is not locked.<br> 1:The corresponding sector is locked.</td></tr>
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<a name="MC_VR"></a><h4><a href="#EFC">EFC</a>: <i><a href="AT91SAM7SE512_h.html#AT91_REG">AT91_REG</a></i> MC_VR  <i>MC Flash Version Register</i></h4><ul><null><font size="-2"><li><b>EFC0</b> <i><a href="AT91SAM7SE512_h.html#AT91C_EFC0_VR">AT91C_EFC0_VR</a></i> 0xFFFFFF6C</font><font size="-2"><li><b>EFC1</b> <i><a href="AT91SAM7SE512_h.html#AT91C_EFC1_VR">AT91C_EFC1_VR</a></i> 0xFFFFFF7C</font></null></ul><table border=1 cellpadding=0 cellspacing=0 width="100%"><null><th bgcolor="#FFFFCC"><b>Offset</b></th><th bgcolor="#FFFFCC"><b>Name</b></th><th bgcolor="#FFFFCC"><b>Description</b></th><tr><td align="CENTER" bgcolor="#FFFFCC">11..0</td><td align="CENTER"><a name="EFC_VERSION"></a><b>EFC_VERSION</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_EFC_VERSION">AT91C_EFC_VERSION</a></font></td><td><b>EFC version number</b><br>EFC version number.Value subject to change. No functionality assiciated. This is the Atmel internal version of the macrocell</td></tr>
<tr><td align="CENTER" bgcolor="#FFFFCC">18..16</td><td align="CENTER"><a name="EFC_MFN"></a><b>EFC_MFN</b><font size="-2"><br><a href="AT91SAM7SE512_h.html#AT91C_EFC_MFN">AT91C_EFC_MFN</a></font></td><td><b>EFC MFN</b><br>EFC MFN Value subject to change. No functionality assiciated</td></tr>
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