參數(shù)資料
型號(hào): TMP86CH09NG
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PDIP32
封裝: 0.400 INCH, 1.78 MM PITCH, LEAD FREE, PLASTIC, SDIP-32
文件頁(yè)數(shù): 93/120頁(yè)
文件大?。?/td> 1743K
代理商: TMP86CH09NG
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Page 63
TMP86FH09ANG
7.2.5 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
s @ 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 7-2 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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