Casio IT-2000W - Manual (Page 192)

192
Resetting Alarm
This function prohibits an INT4Ah interrupt by internally calling INT1Ah (Ah = 7).
Note that neither the time data set for the RTC is erased nor is the power ON alarm setting for the
SYS_SetPowerOnAlarm() function canceled by this function. If this function is called with the
power ON alarm active, the alarm is temporarily reset. However, the RTC will be automatically set
to active after the power is turned off again to enable the power ON alarm.
The power ON alarm can also be canceled using the SYS_SetPowerOnAlarm() function.
SYNTAX
int SYS_ResetAlarm();
INPUT
None
OUTPUT
0 Normal
< 0 Error