3069RF-ZTAT Datasheet, PDF (471/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

12.3.3 Timing of Setting of Overflow Flag (OVF)
Figure 12.6 shows the timing of setting of the OVF flag. The OVF flag is set to 1 when TCNT
overflows. At the same time, a reset signal is generated in watchdog timer operation, or an interval
timer interrupt is generated in interval timer operation.
φ
TCNT
H'FF
H'00
Overflow signal
OVF
Figure 12.6 Timing of Setting of OVF
Rev. 5.0, 09/04, page 449 of 978