msp430interrupt.nc

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//$Id: MSP430Interrupt.nc,v 1.2 2004/08/26 02:26:26 jpolastre Exp $

/* "Copyright (c) 2000-2003 The Regents of the University of California.  
 * All rights reserved.
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation for any purpose, without fee, and without written agreement
 * is hereby granted, provided that the above copyright notice, the following
 * two paragraphs and the author appear in all copies of this software.
 * 
 * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
 * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY
 * OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
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//@author Joe Polastre

interface MSP430Interrupt
{
  /** 
   * Enables MSP430 hardware interrupt on a particular port
   */
  async command void enable();

  /** 
   * Disables MSP430 hardware interrupt on a particular port
   */
  async command void disable();

  /** 
   * Clears the MSP430 Interrupt Pending Flag for a particular port
   */
  async command void clear();

  /** 
   * Gets the current value of the input voltage of a port
   *
   * @return TRUE if the pin is set high, FALSE if it is set low
   */
  async command bool getValue();

  /** 
   * Sets whether the edge should be high to low or low to high.
   * @param TRUE if the interrupt should be triggered on a low to high
   *        edge transition, false for interrupts on a high to low transition
   */
  async command void edge(bool low_to_high);

  /**
   * Signalled when an interrupt occurs on a port
   */
  async event void fired();
}