RV-3029 Datasheet, PDF (32/67 Pages) MICORO CRYSTAL SWITZERLAND – DTCXO Temperature Compensated Real Time Clock

Micro Crystal
DTCXO Temperature Compensated Real Time Clock / Calendar Module
RV-3029
4.5. ALARM FUNCTION
Every Alarm Register in Alarm Page can be individually enabled by setting bit 7 (AE_x) = “1”. Disabled alarm
registers which have their bit “AE_x” at logic = “0” are ignored.
When one or more of these registers are loaded with a valid second, minute, hour, day, weekday, month or year
information and its corresponding alarm enable bit (AE_x) is logic = ”1”, then that information will be compared with
the current time / date information in Watch Page registers.
Alarm function Blockdiagram
check now signal
SECOND ALARM
=
SECOND TIME
MINUTE ALARM
=
MINUTE TIME
HOUR ALARM
=
HOUR TIME
DAY ALARM
=
DAY TIME
WEEKDAY ALARM
=
WEEKDAY TIME
MONTH ALARM
=
MONTH TIME
YEAR ALARM
=
YEAR TIME
SECOND AEN
1
0
MINUTE AEN
1
0
HOUR AEN
1
0
DAY AEN
1
0
WEEKDAY AEN
1
0
MONTH AEN
1
0
YEAR AEN
1
0
AIE
INT
& AF
to reset INT,
clear AF by writting = 0
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