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H8S/2240 数据表(PDF) 439 Page - Renesas Technology Corp

部件名 H8S/2240
功能描述  Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
PDF  818 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

H8S/2240 数据表(HTML) 439 Page - Renesas Technology Corp

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Section 11 Watchdog Timer
Rev.3.00 Mar. 26, 2007 Page 397 of 772
REJ09B0355-0300
TCNT count
H'00
Time
H'FF
WT/
IT = 1
TME = 1
H'00 written
to TCNT
WT/
IT = 1
TME = 1
H'00 written
to TCNT
132 states*2
518 states
WDTOVF signal
Internal reset signal*1
WT/
IT
TME
WOVF
Notes:
WDT overflow
WDTOVF and
internal reset are
generated
WOVF = 1
: Timer mode select bit
: Timer enable bit
: Watchdog timer overflow
1. The internal reset signal is generated only if the RSTE bit is set to 1.
2. 130 states when the RSTE bit is cleared to 0
Legend:
Figure 11.4 Watchdog Timer Operation



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