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/
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Nations Technologies Inc.
Tel
:
+86-755-86309900
:
Address: Nations Tower, #109 Baoshen Road, Hi-tech Park North.
Nanshan District, Shenzhen, 518057, P.R.China
Bit field
Name
Description
When RTC_CTRL.COEN=1, RTCCLK = 32.768KHz and prescale at their default
value (RTC_PRE.DIVA[6:0]=127 and RTC_PRE.DIVS[14:0]=255).
0: Calibration output is 256 Hz
1: Calibration output is 1 Hz
18
BAKP
Daylight saving time record
This bit is written by the user
0: Not record daylight saving time
1: Record daylight saving time
17
SU1H
Subtract 1 hour (winter time change)
1 hour will be subtracted to the calendar time when the current hour value is not 0. This
bit is always read as 0.
0: No effect.
1: Subtracts 1 hour to the current time.
16
AD1H
Add 1 hour (summer time change)
When this bit is set, 1 hour can be added to the calendar time. This bit is always read as.
0: No effect.
1: Adds 1 hour to the current time.
15
Reserved
Reserved, the reset value must be maintained
14
WTIEN
Wakeup timer interrupt enable
0: Disable wakeup timer interrupt.
1: Enable wakeup timer interrupt.
13
ALBIEN
Alarm B interrupt enable
0: Disable Alarm B interrupt
1: Enable Alarm B Interrupt
12
ALAIEN
Alarm A interrupt enable
0: Disable Alarm A interrupt
1: Enable Alarm A interrupt
11
TSEN
Timestamp enable
0: Disable timestamp
1: Enable timestamp
10
WTEN
Wakeup timer enable
0: Disable wakeup timer
1: Enable wakeup timer
9
ALBEN
Alarm B enable
0: Disable Alarm B
1: Enable Alarm B
8
ALAEN
Alarm A enable
0: Disable Alarm A
1: Enable Alarm A
7
Reserved
Reserved, the reset value must be maintained
6
HFMT
Hour format bit
0: 24 hour format