I have a USB-6002 I would like to connect to a MAX6816 switch debouncer to simulate a button press for testing, and would like to leave the physical button in place in the circuit so that either the physical button or the USB-6002 could generate a button press. To do this I need the USB-6002 DIO line in a high impedance state. The MAX6816 has a very weak pull-up, in the 100kOhm range. If I understand the USB-6002 digital input specs correctly, there's a 47.5kOhm pulldown in the digital input circuit. This effectively pulls down the the MAX6816 input if I try to configure the USB-6002 DIO as an input or tristated output. Is there any way to get the USB-6002 to switch the 47.5k pull-down out, or to remove it from the board? Or is there a better way to configure the USB-6002 so that I don't have to drive the DIO line high and effectively prevent the physical button in the circuit from being used?
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