CMOSTEK CMT2380F17 Manual page 81

R/W R/W
Reset V alue 0
Bit 4: RTCF, RTC overflow flag.
0: This bit must be cleared by software writing "1" on it. Software writing "0" is no operation.
1: This bit is only set by hardware when RTCCT overflows. Writing "1" on this bit will clear RTCF.

SFIE: System Flag Interrupt Enable Register
SFR Page = 0~F
SFR Address = 0x8E
Bit 7
Name
SIDFIE
R/W R/W
Reset V alue 0
Bit 4: RTCFIE, Enable RTCF (PCON1.4) Interrupt. 0: Disable RTCF interrupt.
1: Enable RTCF interrupt. If enabled, RTCF will wake up CPU in Idle mode or power-down mode.
R/W R/W
0 0
6 5
-- --
R/W R/W
1 1
Rev0.1 | 81/347
R/W W
0 X
4 3
RTCFIE --
R/W W
0 X
CMT2380F17
R/W R/W
0 0
2 1
BOF1IE BOF0IE
R/W R/W
0 0
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R/W
0
0
WDTFIE
R/W
0