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TMP86CS49FG 데이터시트(PDF) 83 Page - Toshiba Semiconductor

부품명 TMP86CS49FG
상세설명  8 Bit Microcontroller
PDF  252 Pages
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제조업체  TOSHIBA [Toshiba Semiconductor]
홈페이지  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TMP86CS49FG 데이터시트(HTML) 83 Page - Toshiba Semiconductor

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TMP86CS49FG
6.2.5 Watchdog Timer Reset
When a binary-counter overflow occurs while WDTCR1<WDTOUT> is set to “1”, a watchdog timer reset
request is generated. When a watchdog timer reset request is generated, the internal hardware is reset. The reset
time is maximum 24/fc [s] (1.5
µs @ fc = 16.0 MHz).
Note:When a watchdog timer reset is generated in the SLOW1 mode, the reset time is maximum 24/fc (high-fre-
quency clock) since the high-frequency clock oscillator is restarted. However, when crystals have inaccura-
cies upon start of the high-frequency clock oscillator, the reset time should be considered as an approximate
value because it has slight errors.
Figure 6-2 Watchdog Timer Interrupt
Clock
Binary counter
Overflow
INTWDT interrupt request
(WDTCR1<WDTOUT>= "0")
217/fc
219/fc [s]
(WDTT=11)
Write 4EH to WDTCR2
1
2
30
1
2
3
0
Internal reset
(WDTCR1<WDTOUT>= "1")
A reset occurs



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