WM8352
Production Data
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R20 (14h) Alarm
Seconds/Minute
s
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.
Register 14h Alarm Seconds/Minutes
REGISTER
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.
5
RTC_ALMHPM
0
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.
Register 15h Alarm Hours/Day
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R22 (16h)
Alarm
12:8
RTC_ALMMTH[4:0]
0_0000
Month alarm register with range 1-12. All 1's sets
to 'don't care' state.
Date/Month
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.
Register 16h Alarm Date/Month
PD, February 2011, Rev 4.4
230
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
