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From: rick@ut-ngp.UTEXAS (Rick Watson)
Newsgroups: net.micro.mac
Subject: MacSCSI board query
Message-ID: <2469@ut-ngp.UTEXAS>
Date: Thu, 10-Oct-85 13:04:02 EDT
Article-I.D.: ut-ngp.2469
Posted: Thu Oct 10 13:04:02 1985
Date-Received: Sat, 12-Oct-85 21:58:39 EDT
Distribution: net
Organization: UTexas Computation Center, Austin, Texas
Lines: 17

A quick query regarding the MacSCSI interface described in the September
Dr. Dobbs:  Has anyone successfully built an interface from scratch?  If
so, what changes did you make to the schematic?  For starters: 1) I
think the pin labeled A11 on the rom should be labeled A16. 2) No
termination is shown for the SCSI bus. 3) Experimenting with a board
delivered from Fastime seems to indicate that BSY and ATN are not shown
correctly on the schematic.

Also, has anyone figured out if the address space of the board is going
to collide with the address space of the new roms?

Rick Watson
University of Texas Computation Center
rick@ngp.UTEXAS.EDU (arpa)
...seismo!ut-sally!ut-ngp!rick (uucp)
ccaw001@utadnx (bitnet)
512/471-3241 (if you can't figure this one out ...)