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 WDTE Configuration bits.
If WDTE = 2'b1x
, then the
clock source will be enabled depending on the WDTCCS Configuration bits.
If WDTE = 2'b01
, the SEN
bit should be set by software to enable WWDT, and the clock source is enabled by the WDTCS
bits.
Time intervals in this chapter are based on a minimum nominal interval of 1 ms. See “Electrical Specifications” for LFINTOSC and MFINTOSC tolerances.