STM32F4xx_HAL_Driver  1.8.3
APB1 Peripheral Low Power Enable Disable

Enable or disable the APB1 peripheral clock during Low Power (Sleep) mode.

+ Collaboration diagram for APB1 Peripheral Low Power Enable Disable:

Enable or disable the APB1 peripheral clock during Low Power (Sleep) mode.

Note
Peripheral clock gating in SLEEP mode can be used to further reduce power consumption.
After wake-up from SLEEP mode, the peripheral clock is enabled again.
By default, all peripheral clocks are enabled during SLEEP mode.