Rtc Time Stamp Time Register (Rtc_Tstr) - ST STM32F40 Series Reference Manual

Real-time clock (RTC)
23.6.13

RTC time stamp time register (RTC_TSTR)

Address offset: 0x30
Power-on reset value: 0x0000 0000
System reset: not affected
31 30 29
15 14 13
MNT[2:0]
Reserv-
ed
r r
Bits 31:23 Reserved, must be kept at reset value.
Bit 22 PM: AM/PM notation
Bits 21:20 HT[1:0]: Hour tens in BCD format.
Bits 19:16 HU[3:0]: Hour units in BCD format.
Bit 15
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.
Note: 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.
655/1422
28 27 26 25
Reserved
12 11 10 9
MNU[3:0]
r r r r
0: AM or 24-hour format
1: PM
Reserved, must be kept at reset value.
Doc ID 018909 Rev 4
24 23 22 21
PM HT[1:0]
r r
8 7 6 5
ST[2:0]
Reserv-
ed
r r r
20 19 18 17
HU[3:0]
r r r r
4 3 2 1
SU[3:0]
r r r r
RM0090
16
r
0
r