HD6412350 Hitachi, HD6412350 Datasheet - Page 546

• Manufacturer Part Number: HD6412350
• Description: (HD6412350 / HD6432351) 16-BIT MICROCONTROLLER
• Manufacturer: Hitachi

12.3.4
The WOVF flag is set to 1 if TCNT overflows during watchdog timer operation. At the same time,
the WDTOVF signal goes low. If TCNT overflows while the RSTE bit in RSTCSR is set to 1, an
internal reset signal is generated for the entire H8S/2350 Series chip. Figure 12-7 shows the timing
in this case.
526
ø
TCNT
Overflow signal
(internal signal)
WOVF
WDTOVF signal
Internal reset
signal
Overflow signal
(internal signal)
ø
OVF
TCNT
Timing of Setting of Watchdog Timer Overflow Flag (WOVF)
Figure 12-7 Timing of Setting of WOVF
Figure 12-6 Timing of Setting of OVF
H'FF
H'FF
132 states
H'00
518 states
H'00
ø1
ø1
ø1