Interphase SMD controller

Hi, I have three Fujitsu SMD disk drives that came from a Nixdorf machine and I'm looking for a way to read the data (sector based would be good enough). Recently I got hold of a Multibus SMD controller with a Nixdorf label and I hope this will lead me to some conclusions about the low-level format. It's an Interphase SMD 2190 (not a 2180) which is built around an i8085. As I understand it the format differs from controller to controller, is that right? Of course it would be much easier if I could just hook up the drives to a Xylogics 7053 or 451 on a VME based SUN machine... So the big question is, has anyone a manual of or information on the Interphase 2190? Would it be feasible to put the controller into an Intel MDS800 (I know, but it's the only "real" Multibus machine we have here...) ?