PURPOSE: A recognizing method of interrupt generation is provided to enable the generation of level trigger based on an edge trigger scheme without additional device by using an interrupt generation device. CONSTITUTION: A recognizing method of interrupt generation comprises the steps of: sensing a logic level of an external interrupt signal outputted from an external device(305); setting up an initial state or variable state according to the logic level of the varied external interrupt signal(310); setting up the variable state in a trigger level of interrupt generation(315); transiting the external interrupt signal into the trigger level; and resetting up the trigger level in the initial state(330).
