HD64F2168 Datasheet, PDF (387/874 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

13.5 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 13.2 WDT Interrupt Source
Name
WOVI
Interrupt Source
TCNT overflow
Interrupt Flag
OVF
DTC Activation
Not possible
Rev. 3.00, 03/04, page 347 of 830