;===============================================================================
;
;	Option byte
;
;===============================================================================
OPBT	CSEG	AT	0080H
        DB      10011100B       ; Option byte area
;                   ||||
;                   |||+----------- Low-speed internal oscillator can be stopped by software
;                   |++------------ High-speed internal oscillation clock (8 MHz) is selected for system clock source
;                   +-------------- P34/RESET pin is used as RESET pin

        DB      11111111B       ; Protect byte area (for the self programming mode)
;               ||||||||
;               ++++++++----------- All blocks can be written or erased

end