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AM3703CBP gpmc_nwp as a feed-through

Other Parts Discussed in Thread: AM3703

AM3703CBP, gpmc_nwp

I know this pin is not a feed through pin.  However, a customer would like to be able to use this pin as a feed through pin in order to control the write protect signal from some other source on their PCB, i.e. to make it physically impossible for the AM3703 to overwrite memory in certain conditions.  The gpmc_nwp signal is connected to H1 on the bottom and AB10 on top.  If they configure the signal in safe-mode (high impedance input with no internal connection) can they use H1 on the bottom in order to change the value of AB10 on top, i.e. have it function effectively as a feed-through pin?