Pin Function of Percussion Generator

Casio Trigger

The terminal holds LOW level at power switch on for initializing the internal circuit The LSI reads the percussion data from the CPU when the terminal is LOW level. Chip select signal input. Fixed at LOW level. Ground 0V source for internal digital circuit 5V source for internal digital circuit CPU outputs four each of pitch and envelope signals. Normally all the signals are for melody sounds however, when the demonstration music is played, each pitch and envelope signals become obbligato,...