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ST STM32F405 User Manual

ST STM32F405
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Real-time clock (RTC) RM0090
800/1749 RM0090 Rev 18
Figure 237. RTC block diagram
1. On STM32F4xx devices, the RTC_AF1 and RTC_AF2 alternate functions are connected to PC13 and PI8,
respectively.
MS30216V6
Calendar
RTC_ALARM
RTCCLK
HSE/32
LSE (32.768 Hz)
LSI
Synchronous
15-bit prescaler
(default = 256)
ALRAF
RTC_PRER
Backup registers
and RTC tamper
control register
TAMPxF
Time stamp
registers
TSF
Output
control
RTC_OUT
calibration
RTC_TAMP2
=
Smooth
ck_spre
(default 1 Hz)
RTC_REFIN
RTC_TAMP1
RTC_TS
Asynchronous
7-bit prescaler
(default = 128)
RTC_PRERRTC_CALR
Shadow registers
RTC_TR,
RTC_DR
Alarm A
RTC_ALRMAR
RTC_ALRMASSR
ck_apre
(default 256 Hz
RTC_CALIB
Shadow register
RTC_SSR
Alarm B
=
ALRBF
WUCKSEL[1:0]
Prescaler
1, 2, 4, 8, 16
16-bit wakeup
auto reload timer
RTC_WUTR
RTC_TAMP3
WUTF
OSEL[1:0]
RTC_ALRMBR
RTC_ALRMBSSR

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ST STM32F405 Specifications

General IconGeneral
BrandST
ModelSTM32F405
CategoryComputer Hardware
LanguageEnglish

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