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Section 12 Watchdog Timer (WDT)
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
WOVI
TCNT overflow
Rev. 1.00 Mar. 12, 2008 Page 424 of 1178
REJ09B0403-0100
Interrupt Flag
OVF
DTC Activation
Not possible
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