Datasheet

Section 12 Watchdog Timer (WDT)
Rev. 3.00 Sep. 28, 2009 Page 246 of 710
REJ09B0384-0300
12.5 Interrupt Sources
During interval timer mode operation, an overflow generates an interval timer interrupt (WOVI).
The interval timer interrupt is requested whenever the OVF flag is set to 1 in TCSR. OVF must be
cleared to 0 in the interrupt handling routine.
When the NMI interrupt request is selected in watchdog timer mode, an NMI interrupt request is
generated by an overflow
Table 12.2 WDT Interrupt Source
Name Interrupt Source Interrupt Flag DTC Activation
WOVI TCNT overflow OVF Not possible