The DIOs or DOs of the jn5169 chip whether or not to support open-drain output.
The open drain capability on JN516x, an output is driven either low or high.
So to get an IO near the open drain, it can be set in Input without the pull-up activation:
functions vAHI_DioSetDirection() & vAHI_DioSetPullup()
The best configuration to get an IO near the open drain, is to set those IO in Input without the pull-up activation. There is no full open drain on JN516x the IO are always at least in input (and if the input status is not needed then interrupt can be masked or not).
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