Table 197. Rtc Interconnection; Table 198. Pc13 Configuration - STMicroelectronics STM32WLEx Reference Manual

Real-time clock (RTC)
Signal name
rtc_its
rtc_tamp_evt
rtc_calovf
The triggers outputs can be used as triggers for other peripherals.
30.3.3 GPIOs controlled by the RTC and TAMP
The GPIOs included in the Battery Backup Domain (V
peripherals providing functions on these I/Os, whatever the GPIO configuration.
Both RTC and TAMP peripherals provide functions on these I/Os (refer to
Tamper and backup registers
RTC_OUT1, RTC_TS and TAMP_IN1 are mapped on the same pin (PC13). The RTC and
TAMP functions mapped on PC13 are available in all low-power modes and in V
The output mechanism follows the priority order shown in
PC13 Pin function
TAMPALRM output
Push-Pull
890/1306

Table 197. RTC interconnection

From power controller (PWR): main power loss/switch to V
From TAMP peripheral: tamp_evt
To TAMP peripheral: tamp_itamp5
(TAMP)).

Table 198. PC13 configuration

01 or
10 or 0
11
00 1
01 or
10 or 1
11
RM0461 Rev 5
Source/destination
) are directly controlled by the
BAT
Table 198.
(1)
Don't Don't
0
care care
RM0461
detection output
BAT
Section 31:
mode.
BAT
Don't Don't
0
care care