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ST STM32F446 Series User Manual

ST STM32F446 Series
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Real-time clock (RTC) RM0390
690/1328 RM0390 Rev 4
22.6.21 RTC register map
Table 126. RTC register map and reset values
Offset Register
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0x00
RTC_TR
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
PM
HT
[1:0]
HU[3:0]
Res.
MNT[2:0] MNU[3:0]
Res.
ST[2:0] SU[3:0]
Reset value 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0x04
RTC_DR
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
YT[3:0] YU[3:0] WDU[2:0]
MT
MU[3:0]
Res.
Res.
DT
[1:0]
DU[3:0]
Reset value 0 0 100001 0000 0 1
0x08
RTC_CR
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
COE
OSEL
[1:0]
POL
COSEL
BKP
SUB1H
ADD1H
TSIE
WUTIE
ALRBIE
ALRAIE
TSE
WUTE
ALRBE
ALRAE
DCE
FMT
BYPSHAD
REFCKON
TSEDGE
WCKSEL
[2:0]
Reset value 00 0 000000 0 0 00000000000 00
0x0C
RTC_ISR
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
TAMP2F
TAMP1F
TSOVF
TSF
WUTF
ALRBF
ALRAF
INIT
INITF
RSF
INITS
SHPF
WUTWF
ALRBWF
ALRAWF
Reset value 0 000000000001 01
0x10
RTC_PRER
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
PREDIV_A[6:0]
Res.
PREDIV_S[14:0]
Reset value 1 1 11111 0 0 00000111111 11
0x14
RTC_WUTR
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
WUT[15:0]
Reset value 1 1 1111111111111 1
0x18
RTC_CALIBR
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
DCS
Res.
Res.
DC[4:0]
Reset value 000000
0x1C
RTC_ALRMAR
MSK4
WDSEL
DT
[1:0]
DU[3:0]
MSK3
PM
HT
[1:0]
HU[3:0]
MSK2
MNT[2:0] MNU[3:0]
MSK1
ST[2:0] SU[3:0]
Reset value 00000 0 0 000 0 0000000 0 00000000000 00
0x20
RTC_ALRMBR
MSK4
WDSEL
DT
[1:0]
DU[3:0]
MSK3
PM
HT
[1:0]
HU[3:0]
MSK2
MNT[2:0] MNU[3:0]
MSK2
ST[2:0] SU[3:0]
Reset value 00000 0 0 000 0 0000000 0 00000000000 00
0x24
RTC_WPR
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
KEY[7:0]
Reset value 000000 00
0x28
RTC_SSR
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
SS[15:0]
Reset value 0 0 0000000000000 0
0x2C
RTC_SHIFTR
ADD1S
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
SUBFS[14:0]
Reset value
0
0 000000000000 00

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ST STM32F446 Series Specifications

General IconGeneral
BrandST
ModelSTM32F446 Series
CategoryMicrocontrollers
LanguageEnglish

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