Datasheet

4. RTC Battery and Reset Button
mikromedia+ for STM32 ARM
®
features an RTC battery holder
for microcontroller RTC module.
Battery is used as alternate source
of power, so the RTC module can
continue to keep time while the
primacy source of power is o or
currently unavailable. Three types
of coin battery are supported:
CR1216, CR1220 and CR1225.
The board is equipped with reset
button, which is located on the front
side of the board. If you want to reset
the circuit, press the reset button. It
will generate low voltage level on
the microcontroller reset pin (input).
A reset can also be externally
provided through the
pin 27 on the side
headers.
Page 18
RTC Battery
Reset Button