10.1 Independent Clock Source

The WWDT can derive its time base from either the 31 kHz LFINTOSC or 31.25 kHz MFINTOSC internal oscillators, depending on the value of the WDTE bits in CONFIG3.

If WDTE = ‘b1x, then the clock source will be enabled depending on the WDTCCS bits in CONFIG3.

If WDTE = ‘b01, the SEN bit in the WDTCON0 register must be set by software to enable WWDT, and the clock source is enabled by the WDTCS bits in the WDTCON1 register.

Time intervals in this chapter are based on a minimum nominal interval of 1 ms. See Internal Oscillator Parameters⁽¹⁾ for LFINTOSC and MFINTOSC tolerances.