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TCA9539-Q1: INT 触发咨询

Part Number: TCA9539-Q1

Dear TI

如规格书Resetting the interrupt circuit is achieved when data on the port is changed to the original setting or data is read from the port that that generated the interrupt.

请问original setting 是指什么

谢谢!

  • 您好,

    就是之前或原来的状态,比如说port上的状态是0,改变后(有个上升沿)变为1,那么经过 tiv 后会在INT 产生中断信号,如果此port上的状态变回原来的 0 状态,中断电路会复位。