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ST STM32L4+ Series Reference Manual page 47

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RM0432
47.6.3
47.6.4
47.6.5
47.6.6
47.6.7
47.6.8
47.6.9
47.6.10 RTC shift control register (RTC_SHIFTR) . . . . . . . . . . . . . . . . . . . . . 1620
47.6.11 RTC timestamp time register (RTC_TSTR) . . . . . . . . . . . . . . . . . . . . 1621
47.6.12 RTC timestamp date register (RTC_TSDR) . . . . . . . . . . . . . . . . . . . 1622
47.6.13 RTC timestamp sub second register (RTC_TSSSR) . . . . . . . . . . . . . 1622
47.6.14 RTC alarm A register (RTC_ALRMAR) . . . . . . . . . . . . . . . . . . . . . . . 1623
47.6.15 RTC alarm A sub second register (RTC_ALRMASSR) . . . . . . . . . . . 1624
47.6.16 RTC alarm B register (RTC_ALRMBR) . . . . . . . . . . . . . . . . . . . . . . . 1625
47.6.17 RTC alarm B sub second register (RTC_ALRMBSSR) . . . . . . . . . . . 1626
47.6.18 RTC status register (RTC_SR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1627
47.6.19 RTC masked interrupt status register (RTC_MISR) . . . . . . . . . . . . . 1628
47.6.20 RTC status clear register (RTC_SCR) . . . . . . . . . . . . . . . . . . . . . . . . 1629
47.6.21 RTC alarm A binary mode register (RTC_ALRABINR) . . . . . . . . . . . 1630
47.6.22 RTC alarm B binary mode register (RTC_ALRBBINR) . . . . . . . . . . . 1630
47.6.23 RTC register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1631
48
Tamper and backup registers (TAMP) applied to
STM32L4P5xx and STM32L4Q5xx only . . . . . . . . . . . . . . . . . . . . . . . 1633
48.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1633
48.2
TAMP main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1633
48.3
TAMP functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1634
48.3.1
48.3.2
48.3.3
48.3.4
48.4
TAMP low-power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1638
48.5
TAMP interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1638
48.6
TAMP registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1638
48.6.1
48.6.2
48.6.3
RTC sub second register (RTC_SSR) . . . . . . . . . . . . . . . . . . . . . . . . 1612
RTC initialization control and status register (RTC_ICSR) . . . . . . . . 1612
RTC prescaler register (RTC_PRER) . . . . . . . . . . . . . . . . . . . . . . . . 1614
RTC wakeup timer register (RTC_WUTR) . . . . . . . . . . . . . . . . . . . . . 1615
RTC control register (RTC_CR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1615
RTC write protection register (RTC_WPR) . . . . . . . . . . . . . . . . . . . . 1619
RTC calibration register (RTC_CALR) . . . . . . . . . . . . . . . . . . . . . . . . 1619
TAMP block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1634
TAMP pins and internal signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1634
TAMP register write protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1635
Tamper detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1635
TAMP control register 1 (TAMP_CR1) . . . . . . . . . . . . . . . . . . . . . . . . 1639
TAMP control register 2 (TAMP_CR2) . . . . . . . . . . . . . . . . . . . . . . . . 1640
TAMP filter control register (TAMP_FLTCR) . . . . . . . . . . . . . . . . . . . 1641
RM0432 Rev 6
Contents
47/2301
60

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