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How is the PFD Mode of the HT48XA3 MCUs setup?

April 26, 2017ht48xa3 mcus mode PFD Setup

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How is the PFD Mode of the HT48XA3 MCUs setup?

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• To implement the PFD function, the corresponding configuration option should be chosen • Set the Prescaler (PSC2~PSC0=n) value and TMR0 initial value from the formula fPFD = (fSYS / (2n+1x(256-TMR0)x2)) • Start the Timer by setting the TON bit in the TMR0C • Set PB.0 to be in Output Mode, i.e. PBC.0=0 After these steps are taken, set PB.0=1 which will turn on the PFD. If set the PB.0=0 will turn the PFD OFF.