h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 490
h8s-2635
Manufacturer Part Number
h8s-2635
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2635.pdf
(1547 pages)
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Section 12 Watchdog Timer
Rev. 6.00 Feb 22, 2005 page 430 of 1484
REJ09B0103-0600
Internal
reset signal
Legend:
WT/IT :
TME :
Note: * The WOVF bit is set to 1 and then cleared to 0 by an internal reset.
Legend:
WT/IT:
TME:
Note: * The internal reset signal is generated only if the RSTE bit is set to 1.
Internal reset signal *
H'FF
H'00
Timer mode select bit
Timer enable bit
TCNT value
Timer mode select bit
Timer enable bit
WT/IT = 1
TME = 1
H'FF
H'00
Figure 12-4 (b) WDT1 Watchdog Timer Operation
Figure 12-4 (a) WDT0 Watchdog Timer Operation
TCNT value
WT/IT = 1
TME = 1
Write H'00
to TCNT
Write H'00
to TCNT
Internal reset is
generated
Internal reset
is generated
WOVF = 1*
Overflow
515/516 states
Overflow
WOVF = 1
518 states
WT/IT = 1
TME = 1
WT/IT = 1
TME = 1
Write H'00
to TCNT
Write H'00
to TCNT
Time
Time
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