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<div class="header">
  <div class="summary">
<a href="#nested-classes">Classes</a> &#124;
<a href="#define-members">Macros</a> &#124;
<a href="#func-members">Functions</a>  </div>
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<div class="title">Fast Pin I/O</div>  </div>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
Classes</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_digital_pin.html">DigitalPin&lt; PinNumber &gt;</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Fast digital port I/O.  <a href="class_digital_pin.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="struct_gpio_pin_map__t.html">GpioPinMap_t</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
Macros</h2></td></tr>
<tr class="memitem:gacf92f370944e233db04f7423bde1c164"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__digital_pin.html#gacf92f370944e233db04f7423bde1c164">GPIO_PIN</a>(reg,  bit)&#160;&#160;&#160;{&amp;PIN##reg, &amp;DDR##reg, &amp;PORT##reg, 1 &lt;&lt; bit}</td></tr>
<tr class="separator:gacf92f370944e233db04f7423bde1c164"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ga107992311bca47c7ebee5afdedc280e0"><td class="memItemLeft" align="right" valign="top">static void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__digital_pin.html#ga107992311bca47c7ebee5afdedc280e0">badPinCheck</a> (uint8_t pin)</td></tr>
<tr class="separator:ga107992311bca47c7ebee5afdedc280e0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga2a50c39692fdc6a7be0f614f6d730bfe"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__digital_pin.html#ga2a50c39692fdc6a7be0f614f6d730bfe">badPinNumber</a> (void)</td></tr>
<tr class="separator:ga2a50c39692fdc6a7be0f614f6d730bfe"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaa28ed1bee40bd072ba33554ac6d36ed8"><td class="memItemLeft" align="right" valign="top">static volatile uint8_t *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__digital_pin.html#gaa28ed1bee40bd072ba33554ac6d36ed8">ddrReg</a> (uint8_t pin)</td></tr>
<tr class="separator:gaa28ed1bee40bd072ba33554ac6d36ed8"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaff40f792e0b2aefb3ef6f11f32bae3dd"><td class="memItemLeft" align="right" valign="top">static void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__digital_pin.html#gaff40f792e0b2aefb3ef6f11f32bae3dd">fastBitWriteSafe</a> (volatile uint8_t *address, uint8_t mask, bool level)</td></tr>
<tr class="separator:gaff40f792e0b2aefb3ef6f11f32bae3dd"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gada03ef0d2522fe5639f5239991993409"><td class="memItemLeft" align="right" valign="top">static void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__digital_pin.html#gada03ef0d2522fe5639f5239991993409">fastDdrWrite</a> (uint8_t pin, bool level)</td></tr>
<tr class="separator:gada03ef0d2522fe5639f5239991993409"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga618a9ee1c3d1b9fc5c8a2c6a43014b08"><td class="memItemLeft" align="right" valign="top">static bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__digital_pin.html#ga618a9ee1c3d1b9fc5c8a2c6a43014b08">fastDigitalRead</a> (uint8_t pin)</td></tr>
<tr class="separator:ga618a9ee1c3d1b9fc5c8a2c6a43014b08"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga5314f1aaede89a4090b44779c8c551f1"><td class="memItemLeft" align="right" valign="top">static void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__digital_pin.html#ga5314f1aaede89a4090b44779c8c551f1">fastDigitalToggle</a> (uint8_t pin)</td></tr>
<tr class="separator:ga5314f1aaede89a4090b44779c8c551f1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gac4f52b5038c366dd4ac081b18709f19c"><td class="memItemLeft" align="right" valign="top">static void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__digital_pin.html#gac4f52b5038c366dd4ac081b18709f19c">fastDigitalWrite</a> (uint8_t pin, bool level)</td></tr>
<tr class="separator:gac4f52b5038c366dd4ac081b18709f19c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gab5243728ddd84498e4eb59247f58e55d"><td class="memItemLeft" align="right" valign="top">static void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__digital_pin.html#gab5243728ddd84498e4eb59247f58e55d">fastPinConfig</a> (uint8_t pin, uint8_t mode, bool level)</td></tr>
<tr class="separator:gab5243728ddd84498e4eb59247f58e55d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga5b9c17432f07f0eb39283c8b23665fe7"><td class="memItemLeft" align="right" valign="top">static void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__digital_pin.html#ga5b9c17432f07f0eb39283c8b23665fe7">fastPinMode</a> (uint8_t pin, uint8_t mode)</td></tr>
<tr class="separator:ga5b9c17432f07f0eb39283c8b23665fe7"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga99fe9f7aeaaae3764a7b7c40d9d9837b"><td class="memItemLeft" align="right" valign="top">static uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__digital_pin.html#ga99fe9f7aeaaae3764a7b7c40d9d9837b">pinMask</a> (uint8_t pin)</td></tr>
<tr class="separator:ga99fe9f7aeaaae3764a7b7c40d9d9837b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga213b72ce9a61eddce1e85fa057e9e3b6"><td class="memItemLeft" align="right" valign="top">static volatile uint8_t *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__digital_pin.html#ga213b72ce9a61eddce1e85fa057e9e3b6">pinReg</a> (uint8_t pin)</td></tr>
<tr class="separator:ga213b72ce9a61eddce1e85fa057e9e3b6"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga1e2ef44778ccf79ac2c02afe0633ef88"><td class="memItemLeft" align="right" valign="top">static volatile uint8_t *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__digital_pin.html#ga1e2ef44778ccf79ac2c02afe0633ef88">portReg</a> (uint8_t pin)</td></tr>
<tr class="separator:ga1e2ef44778ccf79ac2c02afe0633ef88"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>Fast Digital I/O functions and template class. </p>
<h2 class="groupheader">Macro Definition Documentation</h2>
<a class="anchor" id="gacf92f370944e233db04f7423bde1c164"></a>
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          <td class="memname">#define GPIO_PIN</td>
          <td>(</td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">reg, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">bit&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td>&#160;&#160;&#160;{&amp;PIN##reg, &amp;DDR##reg, &amp;PORT##reg, 1 &lt;&lt; bit}</td>
        </tr>
      </table>
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<p>Initializer macro. </p>

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<h2 class="groupheader">Function Documentation</h2>
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          <td class="memname">static void badPinCheck </td>
          <td>(</td>
          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>pin</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
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<p>Check for valid pin number </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">pin</td><td>Number of pin to be checked. </td></tr>
  </table>
  </dd>
</dl>

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          <td class="memname">void badPinNumber </td>
          <td>(</td>
          <td class="paramtype">void&#160;</td>
          <td class="paramname"></td><td>)</td>
          <td></td>
        </tr>
      </table>
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<p>generate bad pin number error </p>

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          <td class="memname">static volatile uint8_t* ddrReg </td>
          <td>(</td>
          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>pin</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
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<p>DDR register address </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">pin</td><td>Arduino pin number </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>register address </dd></dl>

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          <td class="memname">static void fastBitWriteSafe </td>
          <td>(</td>
          <td class="paramtype">volatile uint8_t *&#160;</td>
          <td class="paramname"><em>address</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>mask</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">bool&#160;</td>
          <td class="paramname"><em>level</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
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<p>Fast write helper. </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">address</td><td>I/O register address </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">mask</td><td>bit mask for pin </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">level</td><td>value for bit </td></tr>
  </table>
  </dd>
</dl>

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          <td class="memname">static void fastDdrWrite </td>
          <td>(</td>
          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>pin</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">bool&#160;</td>
          <td class="paramname"><em>level</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
  </td>
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<p>Write the DDR register. </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">pin</td><td>Arduino pin number </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">level</td><td>value to write </td></tr>
  </table>
  </dd>
</dl>

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          <td class="memname">static bool fastDigitalRead </td>
          <td>(</td>
          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>pin</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
  </td>
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<p>Read pin value. </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">pin</td><td>Arduino pin number </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>value read </dd></dl>

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          <td class="memname">static void fastDigitalToggle </td>
          <td>(</td>
          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>pin</em></td><td>)</td>
          <td></td>
        </tr>
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<p>Toggle a pin. </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">pin</td><td>Arduino pin number</td></tr>
  </table>
  </dd>
</dl>
<p>If the pin is in output mode toggle the pin level. If the pin is in input mode toggle the state of the 20K pullup. </p>

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          <td class="memname">static void fastDigitalWrite </td>
          <td>(</td>
          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>pin</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">bool&#160;</td>
          <td class="paramname"><em>level</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
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<p>Set pin value. </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">pin</td><td>Arduino pin number </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">level</td><td>value to write </td></tr>
  </table>
  </dd>
</dl>

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          <td class="memname">static void fastPinConfig </td>
          <td>(</td>
          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>pin</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>mode</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">bool&#160;</td>
          <td class="paramname"><em>level</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
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<p>set pin configuration </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">pin</td><td>Arduino pin number </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">mode</td><td>mode INPUT or OUTPUT. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">level</td><td>If mode is output, set level high/low. If mode is input, enable or disable the pin's 20K pullup. </td></tr>
  </table>
  </dd>
</dl>

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          <td class="memname">static void fastPinMode </td>
          <td>(</td>
          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>pin</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>mode</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
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<p>Set pin mode. </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">pin</td><td>Arduino pin number </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">mode</td><td>INPUT, OUTPUT, or INPUT_PULLUP.</td></tr>
  </table>
  </dd>
</dl>
<p>The internal pullup resistors will be enabled if mode is INPUT_PULLUP and disabled if the mode is INPUT. </p>

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          <td class="memname">static uint8_t pinMask </td>
          <td>(</td>
          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>pin</em></td><td>)</td>
          <td></td>
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<p>Bit mask for pin </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">pin</td><td>Arduino pin number </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>mask </dd></dl>

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          <td class="memname">static volatile uint8_t* pinReg </td>
          <td>(</td>
          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>pin</em></td><td>)</td>
          <td></td>
        </tr>
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<p>PIN register address </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">pin</td><td>Arduino pin number </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>register address </dd></dl>

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          <td class="memname">static volatile uint8_t* portReg </td>
          <td>(</td>
          <td class="paramtype">uint8_t&#160;</td>
          <td class="paramname"><em>pin</em></td><td>)</td>
          <td></td>
        </tr>
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<p>PORT register address </p><dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">pin</td><td>Arduino pin number </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>register address </dd></dl>

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