User's Manual

UC864-G Hardware User Guide

DRAFT

- 29/10/07

NOTE: During RESET the line is set to HIGH logic level.

12.6 Using the Buzzer Output GPIO7

The GPIO7 pad, when configured as Buzzer Output, is controlled by the UC864-G module and will

drive with appropriate square waves a Buzzer driver.

This permits to your application to easily implement Buzzer feature with ringing tones or melody

played at the call incoming, tone playing on SMS incoming or simply playing a tone or melody when

needed by your application.

A sample interface scheme is included below to give you an idea of how to interface a Buzzer to the

GPIO7:

NOTE: To correctly drive a buzzer a driver must be provided, its characteristics depend on the Buzzer and for them

refer to your buzzer vendor.