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Interpret
as PWR_VOSCR
VOS=B_0x0
Description
PWR voltage scaling control register
Fields
VOS
voltage scaling selection according to performance
These bits control the Vsub CORE/sub voltage level and allow to obtain the best trade-off between power consumption and performance:
In bypass mode, these bits must also be set according to the external provided core voltage level and related performance.
When increasing the performance, the voltage scaling must be changed before increasing the system frequency.
When decreasing performance, the system frequency must first be decreased before changing the voltage scaling.