alarm registers. The alarm can also be programmed to repeat every minute, hour, day, or date. The table below

shows the possible settings. Configurations not listed in the table result in illogical operation. The DY_DT bit (bit 6 of

the alarm day/date registers) control whether the alarm value stored in bits 0-5 that register reflects the day of the

week or the date of the month. If DY_DT is written to logic 0, the alarm is the result of a match with date of the

month. If DY_DT is written to logic 1, the alarm is the result of a match with day of the week.

BIT

7

6

5

4

3

2

1

0

Field

A2M2

min_10[2:0]

minutes[3:0]

Reset

0x0

0x0

0x0

Access

Type

Write, Read

Write, Read

Write, Read

BITFIELD

BITS

DESCRIPTION

A2M2

7

Alarm2 mask bit for minutes

min_10

6:4

Alarm2 minutes in multiples of 10

minutes

3:0

Alarm2 minutes

Alm2_hrs (0x14)

Alarm2 Hours configuration register

BIT

7

6

5

4

3

2

1

0

Field

A2M3

Reserved

hr_10[1:0]

hour[3:0]

Reset

0x0

0x0

0x0

0x0

Access

Type

Write, Read

Write, Read

Write, Read

Write, Read

BITFIELD

BITS

DESCRIPTION

A2M3

7

Alarm2 mask bit for hours

Reserved

6

User must enter 0.

hr_10

5:4

Alarm2 hours in multiples of 10

hour

3:0

Alarm2 hours

Alm2day_date (0x15)

Alarm2 Day/Date Configuration register

BIT

7

6

5

4

3

2

1

0

Field

A2M4

DY_DT

date_10[1:0]

day_date[3:0]

Reset

0x0

0x0

0x0

0x0

Access

Type

Write, Read

Write, Read

Write, Read

Write, Read

BITFIELD

BITS

DESCRIPTION

DECODE

A2M4

7

Alarm2 mask bit for day/date

DY_DT

6

This bit selects alarm when day match or

date match.

0x0: Alarm when date match

0x1: Alarm when day match

date_10

5:4

Alarm2 date in multiples of 10

day_date

3:0

Alarm2 day/date

MAX31342

www.maximintegrated.com

Maxim Integrated | 21