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-.. highlight:: cpp
-
-.. _lang-attachinterrupt:
-
-attachInterrupt()
-=================
-
-Used to specify a function to call when an :ref:`external interrupt
-<external-interrupts>` occurs.
-
-.. contents:: Contents
-   :local:
-
-Library Documentation
----------------------
-
-.. FIXME [doxygenfunction] once Breathe knows how to get the correct
-.. attachInterupt (right now it's copying from HardwareTimer), replace
-.. with a doxygenfunction directive
-
-.. cpp:function:: void attachInterrupt(uint8 pin, voidFuncPtr handler, ExtIntTriggerMode mode)
-
-   Registers an interrupt handler on a pin.
-
-   The interrupt will be triggered on a given transition on the pin,
-   as specified by the mode parameter.  The handler runs in interrupt
-   context.  The new handler will replace whatever handler is
-   currently registered for the pin, if any.
-
-   *Parameters*
-
-      - ``pin`` - Maple pin number
-
-      - ``handler`` - Function to run upon external interrupt trigger.
-        The handler should take no arguments, and have void return type.
-
-      - ``mode`` - Type of transition to trigger on, e.g. falling,
-        rising, etc.
-
-.. doxygenenum:: ExtIntTriggerMode
-
-.. doxygentypedef:: voidFuncPtr
-
-Discussion
-----------
-
-Because the function will run in interrupt context, inside of it,
-:ref:`lang-delay` won't work, and the value returned by
-:ref:`lang-millis` will not increment. Serial data received while in
-the function may be lost. You should declare as ``volatile`` any
-global variables that you modify within the attached function.
-
-There are a few limits you should be aware of if you're using more
-than one interrupt at a time; the :ref:`External Interrupts
-<external-interrupts-exti-line>` page has more information.
-
-Example
--------
-
- ::
-
-    volatile int state = LOW; // must declare volatile, since it's
-                              // modified within the blink() handler
-
-    void setup() {
-      pinMode(BOARD_LED_PIN, OUTPUT);
-      attachInterrupt(0, blink, CHANGE);
-    }
-
-    void loop() {
-      digitalWrite(BOARD_LED_PIN, state);
-    }
-
-    void blink() {
-      state = !state;
-    }
-
-Arduino Compatibility
----------------------
-
-Most Arduino boards have two external interrupts: numbers 0 (on
-digital pin 2) and 1 (on digital pin 3). The Arduino Mega has an
-additional four: numbers 2 (pin 21), 3 (pin 20), 4 (pin 19), and 5
-(pin 18).  On the Maple, you don't have to remember which interrupt
-number goes with which pin -- just tell ``attachInterrupt()`` the pin
-you want.
-
-See Also
---------
-
-- :ref:`lang-detachinterrupt`
-- :ref:`external-interrupts`
-
-.. include:: /arduino-cc-attribution.txt