AXEL Lite SOM/AXEL Lite Hardware/Peripherals/Real Time Clock

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History
Version Issue Date Notes
1.0.0 Oct 2020 New documentation layout


Peripheral Real Time Clock[edit | edit source]

Description[edit | edit source]

The Real Time Clock interface available on AXEL Lite is based on NXP MMPF0100 PMIC.

The Real Time Clock is kept operative through the AXEL Lite PMIC_LICELL pin (J2.14): the LICELL pin provides for a connection of a coin cell backup battery or a “super” capacitor.

A small capacitor should be placed from LICELL to ground under all circumstances.

For more information about PMIC RTC functionality, please refer to the MMPF0100 datasheet.

Pin mapping[edit | edit source]

The Pin mapping is described in the Pinout table section