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ST STM32L0x3 User Manual

ST STM32L0x3
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RM0367 Rev 7 693/1043
RM0367 Real-time clock (RTC)
694
27.7.21 RTC register map
Table 121. RTC register map and reset values
Offset
Register
name
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 0000000 0000000 0000000
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 0000000000100001 000001
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
Res.
FMT
BYPSHAD
REFCKON
TSEDGE
WUCKSEL[2:0]
Reset value 0000 00000000000 0000000
0x0C
RTC_ISR
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
RECALPF
TAMP3F
.TAMP2F
TAMP1F
TSOVF
TSF
WUTF
ALRBF
ALRAF
INIT
INITF
RSF
INITS
SHPF
WUT WF
ALRBWF
ALRAWF
Reset value 00000000000000111
0x10
RTC_PRER
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
PREDIV_A[6:0] PREDIV_S[14:0]
Reset value 111111100 00000011111111
0x14
RTC_WUTR
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
WUT[15:0]
Reset value 1111111111111111
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 00000000000000000000000000000000
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 00000000000000000000000000000000
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
Reset value 00000000
0x28
RTC_SSR
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
Res.
SS[15:0]
Reset value 0000000000000000
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 000000000000000
0x30
RTC_TSTR
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 0000000 0000000 0000000

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ST STM32L0x3 Specifications

General IconGeneral
BrandST
ModelSTM32L0x3
CategoryMicrocontrollers
LanguageEnglish

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