Programming the NI 9375

I need some help with the DAQmx calls needed to operate the NI 9375 Digital Input/Output module.  I have used DIN, DOUT, AIN, AOUT and AIO CompactDAQ modules, so I know how to initialize lots of them, establish interrupts, get data, write data, etc.

The NI 9375 is a bit of a mystery.  There is no documentation on the NI website which directly addresses programming for a DIO C-series module.  MAX does not provide any Port Number information.

Does one deal with the 16-bit DIN/16-bit DOUT as a single 32-but UINT?

Does one establish one DIN task to read the 32-bit UINT?

Does one deal with the 32-bit UINT as lower 16 bits Read Only, and the upper 16 bits Read/Write?

Thanks...