Is VLO derived from DCO clock ?

Raj P

Hi,

Is VLO independent internal oscillator clock source or is it derived from DCO clock source when there is no external crystal is connected ?

over 12 years ago

0 Eric Brundick over 12 years ago

Guru 12966 points

VLOCLK is a separate onboard oscillator from DCO. Not related to DCO in any way. It generates a ~10-12KHz signal that may vary widely based on temperature/voltage/etc. and it can only source the ACLK. It also cannot run at the same time as the 32.768KHz LFXT1, to my knowledge.

0 Ilmars over 12 years ago in reply to Eric Brundick

Guru 46710 points

Eric Brundick said:
VLOCLK is a separate onboard oscillator from DCO.

All this and not only, you can find out reading User's Guide :)

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Is VLO derived from DCO clock ?