Epson S1C6200A Specifiche Pagina 132

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II-22 EPSON S1C6S2N7 TECHNICAL SOFTWARE
CHAPTER 3: PERIPHERAL CIRCUITS (Special Use Output Ports)
• Buzzer driver output (BUZZER)
When output port R01 is set for BUZZER and R00 is set for
BUZZER, it performs 2,048 Hz or 4,096 Hz selected by
register XBZR (0FDH D3).
Label Mnemonic/operand Comment
LD Y,0FDH ;Set address of BUZZER
;frequency control register
LD MY,1000B ;Select 2,048 Hz
LD Y,0F3H ;Set address of output port
OR MY,0010B ;Turn on BUZZER
: :
AND MY,1101B ;Turn off BUZZER
Examples of special
use output port
control program
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