MAX1407 Datasheet, PDF (31/48 Pages) Maxim Integrated Products – Low-Power, 16-Bit Multichannel DAS with Internal Reference,10-Bit DACs, and RTC

NAME
DEFAULT
Low-Power, 16-Bit Multichannel DAS with
Internal Reference,10-Bit DACs, and RTC
AL_HOUR REGISTER (01011)
FIRST BIT (MSB)
(LSB)
M_HR
12/24
AP
10HR
HR3
HR2
HR1
HR0
0
0
0
0
0
0
0
0
M_HR: Alarm mask bit. A logic 1 masks out the hour
alarm comparator.
12/24: 12/24-hour mode bit. A logic 1 selects 12-hour
mode while a logic 0 selects 24-hour mode. This bit
must be the same as the 12/24-bit of the RTC_Hour
register for correct operation.
AP: AM/PM bit. In 12-hour mode, a logic 1 indicates
PM and a logic 0 indicates AM. In 24-hour mode, this
bit is the second 10-hour bit (20 hours).
10HR: This is the 10-hour bit (0–10 hours) of the alarm.
HR[3:0]: These are the hour bits (0–9 hours) of the
alarm.
AL_DAY REGISTER (01100)
FIRST BIT (MSB)
(LSB)
NAME
M_DAY
—
—
—
—
DAY2
DAY1
DAY0
DEFAULT
0
0
0
0
0
0
0
1
M_DAY: Alarm mask bit. A logic 1 masks out the day
alarm comparator.
DAY[2:0]: These are the day of the week bits (Sunday
–Saturday). The following table is the Hex code for
each day of the week.
AL_DAY
DAY[2:0]
SUN
1h
MON
2h
NAME
DEFAULT
FIRST BIT (MSB)
ALIRQ
—
0
0
TUE
3h
—
0
WED
THU
FRI
SAT
4h
5h
6h
7h
AL_STATUS REGISTER (01101)
(LSB)
—
—
—
—
—
0
0
0
0
0
ALIRQ: Alarm Interrupt Request Bit. A logic 1 indicates
that the current time has matched the preset time in the
alarm registers (this corresponds to the assertion of the
INT pin). ALIRQ resets to 0 when any alarm register is
read or written to.
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