Sound Programming
Sound may be programmed in one of three different ways:
•
Puls e train generated by toggling a program control register bit
•
The o u t put of Channel 2 of the timer/counter programmed to deliver a
sound waveform to the speaker
•
Cloc k input to the timer/counter may be modulated by a program controlled
I/O register bit
The three methods may be implemented simultaneously.
Central Processing Unit
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