> Well, I've been doing research on them to help write the driver code and
> from what I can tell there primary advantage is that DSSI is a true
> "system" interconnect vs a "storage" interconnect. 

.....

> A description of DSSI is available in both the KA640 and KA660 technical
> manuals, the description of MSCP is available in the UDA50 programmers
> manual and the DEC patent on it. 
> 
> --Chuck

Excellent!  Just the kind of info I was after.  Are any of these
manuals avaiable online or as ps or pdf files?

Thanks

Bob