RCC_Private_Functions
[RCC]

Modules
	Internal and external clocks, PLL, CSS and MCO configuration functions
	Internal and external clocks, PLL, CSS and MCO configuration functions.
	System AHB and APB busses clocks configuration functions
	System, AHB and APB busses clocks configuration functions.
	Peripheral clocks configuration functions
	Peripheral clocks configuration functions.
	Interrupts and flags management functions
	Interrupts and flags management functions.