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| <title>SAM3N RTT</title> |
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| <body id="abstract"> |
| <div id="container"> |
| <div id="content"> |
| <a id="RTT"></a> |
| <h1>SAM3N RTT</h1> |
| <a id="RTT__User_Interface"></a> |
| <h2>Real-time Timer (RTT) User Interface</h2> |
| <!--As per 6081F 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_0x400E1430">0x400E1430</td> |
| <td class="description">Mode Register</td> |
| <td class="name"> |
| <a href="#RTT_MR" title="Mode Register" class="one_click_away">RTT_MR</a> |
| </td> |
| <td class="access">read-write</td> |
| <td class="address">0x00008000</td> |
| </tr> |
| <tr class="even"> |
| <td class="address" id="address_0x400E1434">0x400E1434</td> |
| <td class="description">Alarm Register</td> |
| <td class="name"> |
| <a href="#RTT_AR" title="Alarm Register" class="one_click_away">RTT_AR</a> |
| </td> |
| <td class="access">read-write</td> |
| <td class="address">0xFFFFFFFF</td> |
| </tr> |
| <tr class="odd"> |
| <td class="address" id="address_0x400E1438">0x400E1438</td> |
| <td class="description">Value Register</td> |
| <td class="name"> |
| <a href="#RTT_VR" title="Value Register" class="one_click_away">RTT_VR</a> |
| </td> |
| <td class="access">read-only</td> |
| <td class="address">0x00000000</td> |
| </tr> |
| <tr class="even"> |
| <td class="address" id="address_0x400E143C">0x400E143C</td> |
| <td class="description">Status Register</td> |
| <td class="name"> |
| <a href="#RTT_SR" title="Status Register" class="one_click_away">RTT_SR</a> |
| </td> |
| <td class="access">read-only</td> |
| <td class="address">0x00000000</td> |
| </tr> |
| </tbody> |
| </table> |
| <h3>Register Fields</h3> |
| <h4 id="RTT_MR">RTT Mode Register</h4> |
| <p><strong>Name</strong>: RTT_MR</p> |
| <p><strong>Access</strong>: read-write</p> |
| <p><strong>Address</strong>: 0x400E1430</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 colspan="1"> |
| <a href="#RTT_MR__RTTRST" title="Real-time Timer Restart">RTTRST</a> |
| </td> |
| <td colspan="1"> |
| <a href="#RTT_MR__RTTINCIEN" title="Real-time Timer Increment Interrupt Enable">RTTINCIEN</a> |
| </td> |
| <td colspan="1"> |
| <a href="#RTT_MR__ALMIEN" title="Alarm Interrupt Enable">ALMIEN</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="#RTT_MR__RTPRES" title="Real-time Timer Prescaler Value">RTPRES</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="#RTT_MR__RTPRES" title="Real-time Timer Prescaler Value">RTPRES</a> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| <ul class="values"> |
| <li id="RTT_MR__RTPRES"><strong>RTPRES</strong>: Real-time Timer Prescaler Value</li> |
| <p>-</p> |
| <li id="RTT_MR__ALMIEN"><strong>ALMIEN</strong>: Alarm 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">The bit ALMS in RTT_SR has no effect on interrupt.</td></tr><tr class="even"><td class="value">1</td><td class="name">-</td><td class="description">The bit ALMS in RTT_SR asserts interrupt.</td></tr></tbody></table></li> |
| <li id="RTT_MR__RTTINCIEN"><strong>RTTINCIEN</strong>: Real-time Timer Increment 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">The bit RTTINC in RTT_SR has no effect on interrupt.</td></tr><tr class="even"><td class="value">1</td><td class="name">-</td><td class="description">The bit RTTINC in RTT_SR asserts interrupt.</td></tr></tbody></table></li> |
| <li id="RTT_MR__RTTRST"><strong>RTTRST</strong>: Real-time Timer Restart<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 effect.</td></tr><tr class="even"><td class="value">1</td><td class="name">-</td><td class="description">Reloads and restarts the clock divider with the new programmed value. This also resets the 32-bit counter.</td></tr></tbody></table></li> |
| </ul> |
| <h4 id="RTT_AR">RTT Alarm Register</h4> |
| <p><strong>Name</strong>: RTT_AR</p> |
| <p><strong>Access</strong>: read-write</p> |
| <p><strong>Address</strong>: 0x400E1434</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="#RTT_AR__ALMV" title="Alarm Value">ALMV</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="#RTT_AR__ALMV" title="Alarm Value">ALMV</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="#RTT_AR__ALMV" title="Alarm Value">ALMV</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="#RTT_AR__ALMV" title="Alarm Value">ALMV</a> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| <ul class="values"> |
| <li id="RTT_AR__ALMV"><strong>ALMV</strong>: Alarm Value</li> |
| <p>-</p> |
| </ul> |
| <h4 id="RTT_VR">RTT Value Register</h4> |
| <p><strong>Name</strong>: RTT_VR</p> |
| <p><strong>Access</strong>: read-only</p> |
| <p><strong>Address</strong>: 0x400E1438</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="#RTT_VR__CRTV" title="Current Real-time Value">CRTV</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="#RTT_VR__CRTV" title="Current Real-time Value">CRTV</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="#RTT_VR__CRTV" title="Current Real-time Value">CRTV</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="#RTT_VR__CRTV" title="Current Real-time Value">CRTV</a> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| <ul class="values"> |
| <li id="RTT_VR__CRTV"><strong>CRTV</strong>: Current Real-time Value</li> |
| <p>-</p> |
| </ul> |
| <h4 id="RTT_SR">RTT Status Register</h4> |
| <p><strong>Name</strong>: RTT_SR</p> |
| <p><strong>Access</strong>: read-only</p> |
| <p><strong>Address</strong>: 0x400E143C</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>-</td> |
| <td colspan="1"> |
| <a href="#RTT_SR__RTTINC" title="Real-time Timer Increment">RTTINC</a> |
| </td> |
| <td colspan="1"> |
| <a href="#RTT_SR__ALMS" title="Real-time Alarm Status">ALMS</a> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| <ul class="values"> |
| <li id="RTT_SR__ALMS"><strong>ALMS</strong>: Real-time Alarm 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 Real-time Alarm has not occurred since the last read of RTT_SR.</td></tr><tr class="even"><td class="value">1</td><td class="name">-</td><td class="description">The Real-time Alarm occurred since the last read of RTT_SR.</td></tr></tbody></table></li> |
| <li id="RTT_SR__RTTINC"><strong>RTTINC</strong>: Real-time Timer Increment<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 Real-time Timer has not been incremented since the last read of the RTT_SR.</td></tr><tr class="even"><td class="value">1</td><td class="name">-</td><td class="description">The Real-time Timer has been incremented since the last read of the RTT_SR.</td></tr></tbody></table></li> |
| </ul> |
| </div> |
| </div> |
| </body> |
| </html> |