RM0367 Datasheet, PDF (673/1009 Pages) STMicroelectronics – This reference manual targets application developers

Real-time clock (RTC)
RM0367
27.6.21 RTC register map
Offset Register
Table 107. RTC register map and reset values
0x00
0x04
RTC_TR
Reset value
RTC_DR
Reset value
0x08
RTC_CR
Reset value
HT
[1:0]
HU[3:0]
0000000
MNT[2:0] MNU[3:0]
0 000000
YT[3:0]
YU[3:0] WDU[2:0]
MU[3:0]
00000000 0 0 100001
OSE
L
[1:0]
0000
000 0 0 000000
ST[2:0]
SU[3:0]
0000000
DT
[1:0]
DU[3:0]
000001
WUCKS
EL[2:0]
0000000
0x0C
RTC_ISR
Reset value
0
0 00000000000111
0x10
RTC_PRER
Reset value
PREDIV_A[6:0]
PREDIV_S[14:0]
1111111 0 0 00000011111111
0x14
RTC_WUTR
Reset value
WUT[15:0]
1 1 11111111111111
0x1C
RTC_ALRMAR
DT
[1:0]
DU[3:0]
HT
[1:0]
HU[3:0]
MNT[2:0] MNU[3:0]
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 0 0 0 0 0 0 0 0 0 0 0
0x20
RTC_ALRMBR
DT
[1:0]
DU[3:0]
HT
[1:0]
HU[3:0]
MNT[2:0] MNU[3:0]
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 0 0 0 0 0 0 0 0 0 0 0
0x24
RTC_WPR
Reset value
KEY
00000000
0x28
RTC_SSR
Reset value
SS[15:0]
0 0 00000000000000
0x2C
RTC_SHIFTR
Reset value 0
SUBFS[14:0]
0 00000000000000
0x30
0x34
0x38
RTC_TSTR
Reset value
RTC_TSDR
Reset value
RTC_TSSSR
Reset value
HU[3:0]
MNU[3:0]
ST[2:0]
SU[3:0]
0000000
0 000000
WDU[1:0]
MU[3:0]
0 0 000000
0000000
DT
[1:0]
DU[3:0]
000000
SS[15:0]
0 0 00000000000000
673/1009
DocID025274 Rev 3