2.1.2.5 TC_MAX_COUNT_BEFORE_ERROR

#define TC_MAX_COUNT_BEFORE_ERROR (11U)

The maximum overflow value of TMR0 before WDT is assumed not to be able to reset the device is approximately 11 ms, considering the frequency tolerance. WDT time-out is 8 ms + ~35% frequency tolerance of the clock. TC_MAC_COUNT_BEFORE_ERROR is 8 ms + 2.8 ms = 10.8 ms (~11 ms).