| 摘要 |
PURPOSE:To enable communication processing during the reproduction of a voice by providing a voice interrupt signal with priority to a communication interrupt signal. CONSTITUTION:When a voice reproduction indication is received during the execution of a main program 1, an interrupt signal for voice reproduction is generated and the control is passed to a voice reproduction interrupt program 2. If there is a request for communication processing between voice reproduction and voice reproduction, the control is transferred to a communication interrupt program 3, but when a voice reproduction indication is received at this time, the hardware of a microcomputer sets the interrupt level of voice reproduction higher than a communication interrupt level, so the communication processing is interrupted temporarily and the voice reproduction is started. A return to the interrupted communication processing is made after the voice reproduction. Consequently, a voice can be reproduced without any break and the communication processing is also performed. |
