8 Real-TiMe ClOCK (RTC)
S1C17153 TeChniCal Manual
Seiko epson Corporation
8-7
(Rev. 1.0)
D9
inT1Den: 1-Day interrupt enable Bit
Enables or disables 1-day interrupt requests to the ITC.
D8
inThDen: half-Day interrupt enable Bit
Enables or disables half-day interrupt requests to the ITC.
D7
inT1hen: 1-hour interrupt enable Bit
Enables or disables 1-hour interrupt requests to the ITC.
D6
inT10Men: 10-Minute interrupt enable Bit
Enables or disables 10-minute interrupt requests to the ITC.
D5
inT1Men: 1-Minute interrupt enable Bit
Enables or disables 1-minute interrupt requests to the ITC.
D4
inT10Sen: 10-Second interrupt enable Bit
Enables or disables 10-second interrupt requests to the ITC.
D3
inT1hZen: 1 hz interrupt enable Bit
Enables or disables 1 Hz interrupt requests to the ITC.
D2
inT4hZen: 4 hz interrupt enable Bit
Enables or disables 4 Hz interrupt requests to the ITC.
D1
inT8hZen: 8 hz interrupt enable Bit
Enables or disables 8 Hz interrupt requests to the ITC.
D0
inT32hZen: 32 hz interrupt enable Bit
Enables or disables 32 Hz interrupt requests to the ITC.
RTC interrupt Flag Register (RTC_iFlG)
Register name address
Bit
name
Function
Setting
init. R/W
Remarks
RTC interrupt
Flag Register
(RTC_iFlG)
0x56c4
(16 bits)
D15–10
–
reserved
–
–
–
0 when being read.
D9
inT1D
1-day interrupt flag
1 Cause of
interrupt
occurred
0 Cause of
interrupt not
occurred
0
R/W Reset by writing 1.
D8
inThD
Half-day interrupt flag
0
R/W
D7
inT1h
1-hour interrupt flag
0
R/W
D6
inT10M
10-minute interrupt flag
0
R/W
D5
inT1M
1-minute interrupt flag
0
R/W
D4
inT10S
10-second interrupt flag
0
R/W
D3
inT1hZ
1 Hz interrupt flag
0
R/W
D2
inT4hZ
4 Hz interrupt flag
0
R/W
D1
inT8hZ
8 Hz interrupt flag
0
R/W
D0
inT32hZ
32 Hz interrupt flag
0
R/W
This register indicates RTC interrupt cause occurrence status. When the corresponding interrupt enable bit is set to 1,
the interrupt flag will be set to 1 in the interrupt cycles and the interrupt request will be sent to the ITC. The inter-
rupt flags are reset to 0 by writing 1.
1 (R):
Cause of interrupt has occurred
0 (R):
No cause of interrupt has occurred (default)
1 (W):
Flag is reset
0 (W):
Ignored
D[15:10] Reserved
D9
inT1D: 1-Day interrupt Flag Bit
Indicates 1-day interrupt cause occurrence status. INT1D is set to 1 at the same time the hour counter
changes from 23 to 0 (in 24-hour mode) or 11pm to 12am (in 12-hour mode).
D8
inThD: half-Day interrupt Flag Bit
Indicates half-day interrupt cause occurrence status. INTHD is set to 1 at the same time the hour
counter changes from 11 to 12, 23 to 0 (in 24-hour mode), or 11am to 12pm, 11pm to 12am (in 12-hour
mode).