| 摘要 |
PROBLEM TO BE SOLVED: To enable input/output processing of a voice by program control of a microcomputer. SOLUTION: A program for processing various control inputs and a program for input/output of an aural signal are memorized in a control ROM 31, and a program language (command) of an address designated by a ROM address control part 32 is outputted sequentially. An interrupt control part 38 sends an interruption request signal to the ROM address control part 32 at each fixed time, and evacuates the address of a main program, and starts an interrupt processing program for executing input/output of the aural signal. An analog signal taken in by interrupt processing is memorized in a voice memorizing RAM through an A/D converter group 44, and a digital signal read out from the voice memorizing RAM is outputted through a D/A converter group 45. After a return command of the interrupt processing program is decoded by an operation analysis part 37, the evacuated address is reset and returned to the main program. |
