HD6412340 HITACHI [Hitachi Semiconductor], HD6412340 Datasheet - Page 420

• Manufacturer Part Number: HD6412340
• Description: H8S/2345 F-ZTAT Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

Internal reset signal
Legend
WT/IT
TME
Notes: 1. The internal reset signal is generated only if the RSTE bit is set to 1.
WDTOVF signal
: Timer mode select bit
: Timer enable bit
2. 130 states when the RSTE bit is cleared to 0.
3. The WDTOVF pin function is not supported by the F-ZTAT version.
H'FF
H'00
TCNT count
*3
*1
WT/IT = 1
TME = 1
Figure 11.4 Watchdog Timer Operation
H'00 written
to TCNT
WDTOVF
internal reset are
generated
Overflow
132 states
WOVF=1
*3
518 states
and
*2
WT/IT = 1
TME = 1
H'00 written
to TCNT
Time
405