Subject: Re: TC scsi cards
To: Toru Nishimura <>
From: Chris G. Demetriou <>
List: port-alpha
Date: 01/10/2001 18:51:55 (Toru Nishimura) writes:
> DU/Tru64 has support for Fast/Wide/Differential SCSI adaptor named
> KZTSA.  It seems a variation of "SIMport" SCSI chip implemented for
> TURBOchannel.  I have no further information of it.

There's also a KZPSA, which is the PCI variant.

When I was working at CMU, the lab that I was working for did storage
stuff.  We had a boatload of KZTSAs, and IIRC at the time I was
leaving a bunch of KZPSAs too.

If I recall correctly, the hardware was an NCR/Symbios SIOP (53c7xx,
if my memory serves) sitting behind an i960 which acted as a smart

I think at one point (while at CMU) i might have had access to a tiny
amount of documentation on those boards.  I looked for more while I
was working for Digital, but even on the inside wasn't successful in
finding it.  Might be that I didn't look hard enough.

(My recollection is that SIMport was a programming spec, not in itself
a chip... but I never dug into those docs and I'm not a storage- or