Datasheet

Section 13 8-Bit Timer (TMR)
Rev. 3.00 Sep. 28, 2009 Page 378 of 910
REJ09B0350-0300
13.5.6 Timing of Overflow Flag (OVF) Setting
The OVF bit in TCSR is set to 1 when the TCNT overflows (changes from H'FF to H'00). Figure
13.10 shows the timing of OVF flag setting.
φ
OVF
Overflow signal
TCNT H'FF H'00
Figure 13.10 Timing of OVF Flag Setting