Abstract: A vibration motor driving apparatus using a serial interface comprises a serial interface part for receiving an effect command (effect digital data or effect generating command digital data) from a main processor upon occurrence of an event, a unit for generating a clock when the effect command is received from the serial interface unit, a vibration motor driving signal generating unit including an effect data generating part for outputting effect data having a resonance frequency of a vibration motor on the basis of the effect command received from the serial interface unit and the clock received from the clock generating unit, and a D/A converting part for converting the effect data into a vibration motor driving signal, and the vibration motor which vibrates in accordance with the vibration motor driving signal to generate a haptic rhythm.