HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 621

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

13.3.2
To use the WDT as an interval timer, clear the WT/IT bit in TCSR to 0 and set the TME bit to 1.
An interval timer interrupt (WOVI) is generated each time TCNT overflows, provided that the
WDT is operating as an interval timer, as shown in figure 13.5. This function can be used to
generate interrupt requests at regular intervals.
Legend:
WOVI: Interval timer interrupt request generation
H'FF
H'00
Operation in Interval Timer Mode
TCNT count
WT/IT=0
TME=1
Figure 13.5 Operation in Interval Timer Mode
Overflow
WOVI
Overflow
WOVI
Rev.6.00 Sep. 27, 2007 Page 591 of 1268
Overflow
WOVI
Section 13 Watchdog Timer
Overflow
WOVI
REJ09B0220-0600
Time