Samsung S5PC110 Manual page 788

S5PC110_UM
4.10.1.1 Interrupt Pending Register (INTP, R/W, Address = 0xE280_0030)
You can clear specific bits of INTP register by writing 1's to the bits that you want to clear regardless of RTCEN
value.
INTP Bit
Reserved [31:2]
ALARM [1]
Time TIC [0]
Reserved
Alarm interrupt pending bit
0 = No interrupt occurred
1 = Interrupt occurred
Time TIC interrupt pending bit
0 = No interrupt occurred
1 = Interrupt occurred.
Description
4 REAL TIME CLOCK (RTC)
Initial State
0
0
0
4-9