WM8352 datasheet(230/336 Pages) WOLFSON

230 / 336 page

WM8352

Production Data

PD, February 2011, Rev 4.4

230

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R20 (14h) Alarm

Seconds/Minute

14:8

RTC_ALMMINS[6:0]

000_0000 Minutes alarm register with range 0-59. All 1's

sets to 'don't care' state.

Note, during programming it is best to disable

the Alarm Enable request bit to avoid false

alarms.

6:0

RTC_ALMSECS[6:0]

000_0000 Seconds alarm register with range 0-59. All 1's

set to 'don't care' state.

Note, during programming it is best to disable

the Alarm Enable request bit to avoid false

alarms.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R21 (15h)

Alarm

Hours/Day

11:8

RTC_ALMDAY[3:0]

0000

Day alarm register, with range 1-7, 1 = Sunday.

All 1's sets to 'don't care' state.

Note, during programming it is best to disable the

Alarm Enable request bit to avoid false alarms.

RTC_ALMHPM

Alarm hours AM/PM flag

0 = AM

1 = PM

Only applicable in 12 hour mode. In 24 hour mode

set to 1 if RTC_ALMHRS is set to all 1’s ‘don’t

care’ or 0 otherwise.

4:0

RTC_ALMHRS[4:0]

0_0000

Hours alarm register with range 0-23 in 24 hours

mode and 1-12 in 12 hour. In 12 hour mode bit 5 is

used as PM/not-AM flag. All 1's sets to 'don't care'

state.

Note, during programming it is best to disable the

Alarm Enable request bit to avoid false alarms.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

REFER TO

R22 (16h)

Alarm

Date/Month

12:8

RTC_ALMMTH[4:0]

0_0000

Month alarm register with range 1-12. All 1's sets

to 'don't care' state.

Note, during programming it is best to disable the

Alarm Enable request bit to avoid false alarms.

5:0

RTC_ALMDATE[5:0]

00_0000

Date alarm register with range 1-31. All 1's sets to

'don't care' state.

Note, during programming it is best to disable the

Alarm Enable request bit to avoid false alarms.

WM8352 Datasheet(PDF) 230 Page - Wolfson Microelectronics plc

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