RM0366 Datasheet, PDF (627/868 Pages) STMicroelectronics – This reference manual targets application developers

Real-time clock (RTC)
RM0366
24.6.12
RTC timestamp time register (RTC_TSTR)
The content of this register is valid only when TSF is set to 1 in RTC_ISR. It is cleared when
TSF bit is reset.
Address offset: 0x30
Backup domain reset value: 0x0000 0000
System reset: not affected
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Res. Res. Res. Res. Res. Res. Res. Res. Res. PM
HT[1:0]
HU[3:0]
r
r
r
r
r
r
r
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Res.
MNT[2:0]
MNU[3:0]
Res.
ST[2:0]
SU[3:0]
r
r
r
r
r
r
r
r
r
r
r
r
r
r
Bits 31:23 Reserved, must be kept at reset value
Bit 22 PM: AM/PM notation
0: AM or 24-hour format
1: PM
Bits 21:20 HT[1:0]: Hour tens in BCD format.
Bits 19:16 HU[3:0]: Hour units in BCD format.
Bit 15 Reserved, must be kept at reset value
Bits 14:12 MNT[2:0]: Minute tens in BCD format.
Bits 11:8 MNU[3:0]: Minute units in BCD format.
Bit 7 Reserved, must be kept at reset value
Bits 6:4 ST[2:0]: Second tens in BCD format.
Bits 3:0 SU[3:0]: Second units in BCD format.
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