FA: DEC RF-71 Disk Drive

[Antonio Carlini]

I wrote:
>DSSI certainly supports SCA but if you look at the SII I'm
>sure you'll find that it can do both SCSI and DSSI. I'd be
>even more sure if I had an SII spec.

I found a partial spec. It has this to say:

>             The second port is  the  SCSI/DSSI  bus  and  the
required
>        control  signals.   The  outputs  from  the  SII are designed
to
>        interface directly with the NCR 8310 Receiver/Driver  chip
with
>        no  glue  elements.   The SII will generate and check parity
and
>        support both the initiator and target roles.

Things may have changed by the time stuff shipped, and you certainly
cannot put a SCSI drive on a DSSI bus (or vice versa) but clearly the
two busses are fairly close at some level.

Antonio

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Antonio carlini
arcarlini at iee.org