Date: Fri, 04 Jun 2010 22:41:00 -0400
From: "Curtis H. Wilbar Jr." <rescue at hawkmountain.net>
Subject: old Sun SCSI chips
To: General Discussion: On-Topic and Off-Topic Posts
<cctalk at classiccmp.org>
Message-ID: <4C09B93C.1090201 at hawkmountain.net>
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I'm trying to nail down the differences between FAS101 and 53C96 SCSI
chips
used in Sun systems/boards.
I believe the 53C96 is 5MB/sec SCSI and the FAS101 if 10MB/sec.
(I found specs for Macs with the 53c96 that say 5MB/sec which is where
I got that # from). A Sun infodoc article lumps up the FAS101 and MACIO,
doesn't indicate the speed of the FAS101, but indicates the MACIO is
10MB/sec.
Yes, the 53C96 supported *unenhanced* SCSI 2 operations, meaning 5 MB/s
maximum theoretical transfer speed.
If you wanted *Fast* SCSI-2 (10 MB/s) you needed the 53CF96.
I do not know anything about the FAS101.
Jeff Walther