Clock Bias Disable Bit

[972276616]

hello,
Is it feasible for me to set the CLKBIASDIS flag bit before entering VLPS mode?
It says to disable the SIRC clock, but to use THE VLPS mode you must use the SIRC clock.

Look forward to your answer, thank you
Zheng

  

[Robin_Shen · Accepted solution]

Hi Zheng,

If SIRC is not enabled in VLPS modes, power consumption can be reduced by setting PMC_REGSC[CLKBIASDIS] bit. While using this bit, it must be ensured that respective clock modules are disabled in VLPS mode, else, severe malfunction of clock modules will happen.

You can see the Power consumption of VLPS with Peripherals disabled(With PMC_REGSC[CLKBIASDIS] set to 1)

But if you want to use some peripherals in VLPS mode which need SIRC, then you can not set 1 to PMC_REGSC[CLKBIASDIS].

Best Regards,
Robin
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