S-35192A-I8T1G SII [Seiko Instruments Inc], S-35192A-I8T1G Datasheet - Page 21

• Manufacturer Part Number: S-35192A-I8T1G
• Description: 3-WIRE REAL-TIME CLOCK
• Manufacturer: SII [Seiko Instruments Inc]

Rev.1.2
Alarm Function
INT1 flag/INT2 flag
By this alarm function, the INT1 flag or the INT2 flag (B2 or B3 in the status register1) is set to “H” when the time that
users set has come.
Set up the data of day of the week, hour and minute as alarm time in the INT register 1/2. Refer to “ 4. INT register 1 and
INT register 2 ” in “ Configuration of Register ”.
INT1AE/INT2AE
Real-time data
_00
Alarm setting of “W (day of the week), H (hour), m (minute)”
Status register 2 setting
• Alarm 1 function
• Alarm 2 function
INT1ME = INT1FE = 0
None
W (day of the week)
H h (m − 1) m 59 s
Figure 23 Output Timing of INT1 Flag and INT2 Flag (1/2)
Change by program
Second
Second
Alarm time matches
Minute Hour
Real-time data
Minute Hour
mx
INT register 1
INT register 2
Hx
Seiko Instruments Inc.
Comparator
the week
Day of
Wx
H h m m 00 s
Period when alarm time matches
Day
Change by program
INT register x alarm enable flag
• AxHE = AxmE = AxWE = “1”
Month
Read status register 1
Year
01 s
3-WIRE REAL-TIME CLOCK
Alarm output to INT1 flag/INT2 flag
(B3 or B2 in status register 1)
Change by program
59 s
H h (m + 1) m 00
S-35192A
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