r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 850
r4f2456
Manufacturer Part Number
r4f2456
Description
16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R4F2456.pdf
(1376 pages)
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Section 14 Watchdog Timer (WDT)
14.5
During interval timer mode operation, an overflow generates an interval timer interrupt (WOVI).
The interval timer interrupt is requested whenever the OVF flag is set to 1 in TCSR. OVF must be
cleared to 0 in the interrupt handling routine.
Table 14.2 WDT Interrupt Source
Rev. 1.00 Sep. 19, 2008 Page 820 of 1342
REJ09B0467-0100
Name
WOVI
Legend:
WOVI: Interval timer interrupt request generation
H'FF
H'00
Interrupt Source
TCNT count
WT/IT=0
TME=1
Interrupt Source
TCNT overflow
Figure 14.3 Operation in Interval Timer Mode
Overflow
WOVI
Overflow
WOVI
OVF
Interrupt Flag
Overflow
WOVI
Overflow
DTC Activation
Impossible
WOVI
Time
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