>>If you set other values into the register, the the INT pin will keep active for selected time then deactive automatically whenever you read sensor register or not. but if INT condition still meet afterwords, the INT pin will be active again.<< This sounds like the INT pin will oscillate until you "do something" to reset the interrupt condition: 1) Interrupt condition occurs, so INT is taken active (and let's presume nobody reads registers nor does anything else to clear the interrupt condition) 2) The configured amount of time elapses, so the INT pin goes inactive... 3) ...but since the interrupt condition still exists, "the INT pin will be active again" for the configured amount of time 4) Go to step number 2 above, and the INT pin pulses forever until someone clears the interrupt condition That doesn't sound correct. Does the chip REALLY behave like that?!?
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