Timing Of Setting Of Overflow Flag (Ovf) - Hitachi F-ZTAT H8/3039 Series Hardware Manual

10.3.3 Timing of Setting of Overflow Flag (OVF)

Figure 10-6 shows the timing of setting of the OVF flag in TCSR. 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.
ø
TCNT
Overflow signal
OVF
H'FF
Figure 10-6 Timing of Setting of OVF
H'00
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