Posted on August 22, 2004 at 18:32Thanks for replying. The PA3 line is connected to a resistor to 5volt and debounce cap. A switch also connected between ground and the pa3 line. Whenever the switch is pressed an interupt occurs even though the opti...

Posted on August 19, 2004 at 18:45I am having trouple with an interupt on the pa3 line of a 42 pin st72334j2. The interupt is called even though the option register is zero. If I make outputs of the unconnected pins (ie pa0-pa2 ) the interupt is not...