Figure 176. Rtc Block Diagram - ST STM32F410 Reference Manual

RM0401
–
•
Timestamp function for event saving (1 event)
•
Tamper detection:
–
•
20 backup registers (80 bytes). The backup registers are reset when a tamper
detection event occurs.
•
Alternate function output (RTC_OUT) which selects one of the following two outputs:
–
–
•
RTC alternate function inputs:
–
–
–
0.95 ppm accuracy, obtained in a calibration window of several seconds
2 tamper events with configurable filter and internal pull-up.
RTC_CALIB: 512 Hz or 1 Hz clock output (with an LSE frequency of 32.768 kHz).
This output is enabled by setting the COE bit in the RTC_CR register. It is routed
to the device RTC_AF1 function.
RTC_ALARM (Alarm A, Alarm B or wakeup).
This output is selected by configuring the OSEL[1:0] bits in the RTC_CR register.
It is routed to the device RTC_AF1 function.
RTC_TS: timestamp event detection. It is routed to the device RTC_AF1.
RTC_TAMP1: TAMPER1 event detection. It is routed to the device RTC_AF1.
RTC_REFIN: reference clock input (usually the mains, 50 or 60 Hz).

Figure 176. RTC block diagram

RM0401 Rev 3
Real-time clock (RTC)
487/771
523