CFGR

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Interpret as CFGR

Clock configuration register

SW	System clock switch
SWS	System clock switch status
HPRE	AHB prescaler
PPRE1	PB low-speed prescaler (APB1)
PPRE2	APB high-speed prescaler (APB2)
STOPWUCK	Wakeup from Stop and CSS backup clock selection
MCOSEL	Microcontroller clock output
MCOPRE	Microcontroller clock output prescaler

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