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| <title>SAM3U EFC0</title> |
| <link rel="stylesheet" type="text/css" href="css/html.css" media="all" /> |
| </head> |
| <body id="abstract"> |
| <div id="container"> |
| <div id="content"> |
| <a id="EFC0"></a> |
| <h1>SAM3U EFC0</h1> |
| <a id="EFC0__User_Interface"></a> |
| <h2>Embedded Flash Controller (EFC0) User Interface</h2> |
| <!--As per 6450E programmer datasheet.--> |
| <h3>Registers</h3> |
| <table class="registers"> |
| <caption>Register Mapping</caption> |
| <thead> |
| <tr> |
| <th class="address">Address</th> |
| <th class="description">Register</th> |
| <th class="name">Name</th> |
| <th class="access">Access</th> |
| <th class="reset">Reset</th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="odd"> |
| <td class="address" id="address_0x400E0800">0x400E0800</td> |
| <td class="description">EEFC Flash Mode Register</td> |
| <td class="name"> |
| <a href="#EFC0_FMR" title="EEFC Flash Mode Register" class="one_click_away">EFC0_FMR</a> |
| </td> |
| <td class="access">read-write</td> |
| <td class="address">0x00000000</td> |
| </tr> |
| <tr class="even"> |
| <td class="address" id="address_0x400E0804">0x400E0804</td> |
| <td class="description">EEFC Flash Command Register</td> |
| <td class="name"> |
| <a href="#EFC0_FCR" title="EEFC Flash Command Register" class="one_click_away">EFC0_FCR</a> |
| </td> |
| <td class="access">write-only</td> |
| <td class="address">-</td> |
| </tr> |
| <tr class="odd"> |
| <td class="address" id="address_0x400E0808">0x400E0808</td> |
| <td class="description">EEFC Flash Status Register</td> |
| <td class="name"> |
| <a href="#EFC0_FSR" title="EEFC Flash Status Register" class="one_click_away">EFC0_FSR</a> |
| </td> |
| <td class="access">read-only</td> |
| <td class="address">0x00000001</td> |
| </tr> |
| <tr class="even"> |
| <td class="address" id="address_0x400E080C">0x400E080C</td> |
| <td class="description">EEFC Flash Result Register</td> |
| <td class="name"> |
| <a href="#EFC0_FRR" title="EEFC Flash Result Register" class="one_click_away">EFC0_FRR</a> |
| </td> |
| <td class="access">read-only</td> |
| <td class="address">0x00000000</td> |
| </tr> |
| </tbody> |
| </table> |
| <h3>Register Fields</h3> |
| <h4 id="EFC0_FMR">EFC0 EEFC Flash Mode Register</h4> |
| <p><strong>Name</strong>: EFC0_FMR</p> |
| <p><strong>Access</strong>: read-write</p> |
| <p><strong>Address</strong>: 0x400E0800</p> |
| <table class="fields"> |
| <tbody> |
| <tr class="offsets"> |
| <td>31</td> |
| <td>30</td> |
| <td>29</td> |
| <td>28</td> |
| <td>27</td> |
| <td>26</td> |
| <td>25</td> |
| <td>24</td> |
| </tr> |
| <tr class="fields"> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td colspan="1"> |
| <a href="#EFC0_FMR__FAM" title="Flash Access Mode">FAM</a> |
| </td> |
| </tr> |
| <tr class="offsets"> |
| <td>23</td> |
| <td>22</td> |
| <td>21</td> |
| <td>20</td> |
| <td>19</td> |
| <td>18</td> |
| <td>17</td> |
| <td>16</td> |
| </tr> |
| <tr class="fields"> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td colspan="1"> |
| <a href="#EFC0_FMR__SCOD" title="Sequential Code Optimization Disable">SCOD</a> |
| </td> |
| </tr> |
| <tr class="offsets"> |
| <td>15</td> |
| <td>14</td> |
| <td>13</td> |
| <td>12</td> |
| <td>11</td> |
| <td>10</td> |
| <td>9</td> |
| <td>8</td> |
| </tr> |
| <tr class="fields"> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td colspan="4"> |
| <a href="#EFC0_FMR__FWS" title="Flash Wait State">FWS</a> |
| </td> |
| </tr> |
| <tr class="offsets"> |
| <td>7</td> |
| <td>6</td> |
| <td>5</td> |
| <td>4</td> |
| <td>3</td> |
| <td>2</td> |
| <td>1</td> |
| <td>0</td> |
| </tr> |
| <tr class="fields"> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td colspan="1"> |
| <a href="#EFC0_FMR__FRDY" title="Ready Interrupt Enable">FRDY</a> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| <ul class="values"> |
| <li id="EFC0_FMR__FRDY"><strong>FRDY</strong>: Ready Interrupt Enable<table class="values"><thead><tr><th>Value</th><th>Name</th><th>Description</th></tr></thead><tbody><tr class="odd"><td class="value">0</td><td class="name">-</td><td class="description">Flash Ready does not generate an interrupt.</td></tr><tr class="even"><td class="value">1</td><td class="name">-</td><td class="description">Flash Ready (to accept a new command) generates an interrupt.</td></tr></tbody></table></li> |
| <li id="EFC0_FMR__FWS"><strong>FWS</strong>: Flash Wait State</li> |
| <p>-</p> |
| <li id="EFC0_FMR__SCOD"><strong>SCOD</strong>: Sequential Code Optimization Disable<table class="values"><thead><tr><th>Value</th><th>Name</th><th>Description</th></tr></thead><tbody><tr class="odd"><td class="value">0</td><td class="name">-</td><td class="description">The sequential code optimization is enabled.</td></tr><tr class="even"><td class="value">1</td><td class="name">-</td><td class="description">The sequential code optimization is disabled.</td></tr></tbody></table></li> |
| <li id="EFC0_FMR__FAM"><strong>FAM</strong>: Flash Access Mode<table class="values"><thead><tr><th>Value</th><th>Name</th><th>Description</th></tr></thead><tbody><tr class="odd"><td class="value">0</td><td class="name">-</td><td class="description">128-bit access in read Mode only, to enhance access speed.</td></tr><tr class="even"><td class="value">1</td><td class="name">-</td><td class="description">64-bit access in read Mode only, to enhance power consumption.</td></tr></tbody></table></li> |
| </ul> |
| <h4 id="EFC0_FCR">EFC0 EEFC Flash Command Register</h4> |
| <p><strong>Name</strong>: EFC0_FCR</p> |
| <p><strong>Access</strong>: write-only</p> |
| <p><strong>Address</strong>: 0x400E0804</p> |
| <table class="fields"> |
| <tbody> |
| <tr class="offsets"> |
| <td>31</td> |
| <td>30</td> |
| <td>29</td> |
| <td>28</td> |
| <td>27</td> |
| <td>26</td> |
| <td>25</td> |
| <td>24</td> |
| </tr> |
| <tr class="fields"> |
| <td colspan="8"> |
| <a href="#EFC0_FCR__FKEY" title="Flash Writing Protection Key">FKEY</a> |
| </td> |
| </tr> |
| <tr class="offsets"> |
| <td>23</td> |
| <td>22</td> |
| <td>21</td> |
| <td>20</td> |
| <td>19</td> |
| <td>18</td> |
| <td>17</td> |
| <td>16</td> |
| </tr> |
| <tr class="fields"> |
| <td colspan="8"> |
| <a href="#EFC0_FCR__FARG" title="Flash Command Argument">FARG</a> |
| </td> |
| </tr> |
| <tr class="offsets"> |
| <td>15</td> |
| <td>14</td> |
| <td>13</td> |
| <td>12</td> |
| <td>11</td> |
| <td>10</td> |
| <td>9</td> |
| <td>8</td> |
| </tr> |
| <tr class="fields"> |
| <td colspan="8"> |
| <a href="#EFC0_FCR__FARG" title="Flash Command Argument">FARG</a> |
| </td> |
| </tr> |
| <tr class="offsets"> |
| <td>7</td> |
| <td>6</td> |
| <td>5</td> |
| <td>4</td> |
| <td>3</td> |
| <td>2</td> |
| <td>1</td> |
| <td>0</td> |
| </tr> |
| <tr class="fields"> |
| <td colspan="8"> |
| <a href="#EFC0_FCR__FCMD" title="Flash Command">FCMD</a> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| <ul class="values"> |
| <li id="EFC0_FCR__FCMD"><strong>FCMD</strong>: Flash Command</li> |
| <p>-</p> |
| <li id="EFC0_FCR__FARG"><strong>FARG</strong>: Flash Command Argument</li> |
| <p>-</p> |
| <li id="EFC0_FCR__FKEY"><strong>FKEY</strong>: Flash Writing Protection Key</li> |
| <p>-</p> |
| </ul> |
| <h4 id="EFC0_FSR">EFC0 EEFC Flash Status Register</h4> |
| <p><strong>Name</strong>: EFC0_FSR</p> |
| <p><strong>Access</strong>: read-only</p> |
| <p><strong>Address</strong>: 0x400E0808</p> |
| <table class="fields"> |
| <tbody> |
| <tr class="offsets"> |
| <td>31</td> |
| <td>30</td> |
| <td>29</td> |
| <td>28</td> |
| <td>27</td> |
| <td>26</td> |
| <td>25</td> |
| <td>24</td> |
| </tr> |
| <tr class="fields"> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| </tr> |
| <tr class="offsets"> |
| <td>23</td> |
| <td>22</td> |
| <td>21</td> |
| <td>20</td> |
| <td>19</td> |
| <td>18</td> |
| <td>17</td> |
| <td>16</td> |
| </tr> |
| <tr class="fields"> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| </tr> |
| <tr class="offsets"> |
| <td>15</td> |
| <td>14</td> |
| <td>13</td> |
| <td>12</td> |
| <td>11</td> |
| <td>10</td> |
| <td>9</td> |
| <td>8</td> |
| </tr> |
| <tr class="fields"> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| </tr> |
| <tr class="offsets"> |
| <td>7</td> |
| <td>6</td> |
| <td>5</td> |
| <td>4</td> |
| <td>3</td> |
| <td>2</td> |
| <td>1</td> |
| <td>0</td> |
| </tr> |
| <tr class="fields"> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td>-</td> |
| <td colspan="1"> |
| <a href="#EFC0_FSR__FLOCKE" title="Flash Lock Error Status">FLOCKE</a> |
| </td> |
| <td colspan="1"> |
| <a href="#EFC0_FSR__FCMDE" title="Flash Command Error Status">FCMDE</a> |
| </td> |
| <td colspan="1"> |
| <a href="#EFC0_FSR__FRDY" title="Flash Ready Status">FRDY</a> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| <ul class="values"> |
| <li id="EFC0_FSR__FRDY"><strong>FRDY</strong>: Flash Ready Status<table class="values"><thead><tr><th>Value</th><th>Name</th><th>Description</th></tr></thead><tbody><tr class="odd"><td class="value">0</td><td class="name">-</td><td class="description">The Enhanced Embedded Flash Controller (EEFC) is busy.</td></tr><tr class="even"><td class="value">1</td><td class="name">-</td><td class="description">The Enhanced Embedded Flash Controller (EEFC) is ready to start a new command.</td></tr></tbody></table></li> |
| <li id="EFC0_FSR__FCMDE"><strong>FCMDE</strong>: Flash Command Error Status<table class="values"><thead><tr><th>Value</th><th>Name</th><th>Description</th></tr></thead><tbody><tr class="odd"><td class="value">0</td><td class="name">-</td><td class="description">No invalid commands and no bad keywords were written in the Flash Mode Register EEFC_FMR.</td></tr><tr class="even"><td class="value">1</td><td class="name">-</td><td class="description">An invalid command and/or a bad keyword was/were written in the Flash Mode Register EEFC_FMR.</td></tr></tbody></table></li> |
| <li id="EFC0_FSR__FLOCKE"><strong>FLOCKE</strong>: Flash Lock Error Status<table class="values"><thead><tr><th>Value</th><th>Name</th><th>Description</th></tr></thead><tbody><tr class="odd"><td class="value">0</td><td class="name">-</td><td class="description">No programming/erase of at least one locked region has happened since the last read of EEFC_FSR.</td></tr><tr class="even"><td class="value">1</td><td class="name">-</td><td class="description">Programming/erase of at least one locked region has happened since the last read of EEFC_FSR.</td></tr></tbody></table></li> |
| </ul> |
| <h4 id="EFC0_FRR">EFC0 EEFC Flash Result Register</h4> |
| <p><strong>Name</strong>: EFC0_FRR</p> |
| <p><strong>Access</strong>: read-only</p> |
| <p><strong>Address</strong>: 0x400E080C</p> |
| <table class="fields"> |
| <tbody> |
| <tr class="offsets"> |
| <td>31</td> |
| <td>30</td> |
| <td>29</td> |
| <td>28</td> |
| <td>27</td> |
| <td>26</td> |
| <td>25</td> |
| <td>24</td> |
| </tr> |
| <tr class="fields"> |
| <td colspan="8"> |
| <a href="#EFC0_FRR__FVALUE" title="Flash Result Value">FVALUE</a> |
| </td> |
| </tr> |
| <tr class="offsets"> |
| <td>23</td> |
| <td>22</td> |
| <td>21</td> |
| <td>20</td> |
| <td>19</td> |
| <td>18</td> |
| <td>17</td> |
| <td>16</td> |
| </tr> |
| <tr class="fields"> |
| <td colspan="8"> |
| <a href="#EFC0_FRR__FVALUE" title="Flash Result Value">FVALUE</a> |
| </td> |
| </tr> |
| <tr class="offsets"> |
| <td>15</td> |
| <td>14</td> |
| <td>13</td> |
| <td>12</td> |
| <td>11</td> |
| <td>10</td> |
| <td>9</td> |
| <td>8</td> |
| </tr> |
| <tr class="fields"> |
| <td colspan="8"> |
| <a href="#EFC0_FRR__FVALUE" title="Flash Result Value">FVALUE</a> |
| </td> |
| </tr> |
| <tr class="offsets"> |
| <td>7</td> |
| <td>6</td> |
| <td>5</td> |
| <td>4</td> |
| <td>3</td> |
| <td>2</td> |
| <td>1</td> |
| <td>0</td> |
| </tr> |
| <tr class="fields"> |
| <td colspan="8"> |
| <a href="#EFC0_FRR__FVALUE" title="Flash Result Value">FVALUE</a> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| <ul class="values"> |
| <li id="EFC0_FRR__FVALUE"><strong>FVALUE</strong>: Flash Result Value</li> |
| <p>-</p> |
| </ul> |
| </div> |
| </div> |
| </body> |
| </html> |