st,stm32-bbram

Vendor: STMicroelectronics

Note

An implementation of a driver matching this compatible is available in drivers/bbram/bbram_stm32.c.

Description

STM32 Battery Backed RAM

STM32 BBRAM are 32-bit registers which can be used for storing user
application data. They are implemented in the backup domain that remains
powered-on by VBAT when the VDD power is switched off. They are not reset
by system reset or when the device wakes up from Standby mode. They are
reset by a backup domain reset.

Note: Since STM32 BBRAM is in RTC backup domain, STM32 RTC node must be
      enabled if STM32 BBRAM node is enabled.

Properties

Properties not inherited from the base binding file.

Name

Type

Details

st,backup-regs

int

Number of available backup registers.

This property is required.