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你好
想要請教一下，這顆RESET IC的WDI腳，是否WDI = GND, WDI = VDD都一樣會啟動RESET 機制。除非是符合 WINDOWS 才會維持HIGH.
#TPS3813 為ACTIVE LOW, 當RESET被觸發時RESET腳會拉下來。
TPS3813 具有窗口看门狗定时器的处理器监控电路
这里讲到了看门狗, 而 WDI 就是看门狗的喂狗信号. 要求一定周期只能给脉冲信号. 否则导致复位.
看门狗的复位动作时间典型 2.5S, 细节可以看手册 7.7 开关特性
