D12320VF25IV Datasheet, PDF (624/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 13 Watchdog Timer
13.3.3 Timing of Overflow Flag (OVF) Setting
The OVF flag is set to 1 if TCNT overflows during interval timer operation. At the same time, an
interval timer interrupt (WOVI) is requested. This timing is shown in figure 13.6.
φ
TCNT
Overflow signal
(internal signal)
H'FF
H'00
OVF
Figure 13.6 Timing of OVF Setting
Rev.6.00 Sep. 27, 2007 Page 592 of 1268
REJ09B0220-0600