From slee@mit.edu Tue Dec 05 20:34:15 1995
Path: ashpoly!cascade!mxgate!coyoacan!mit!slee
From: slee@mit.edu (Steve Lee)
Newsgroups: comp.sys.m68k
Subject: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1995Dec05.203415.3558@mit.edu>
Date: Tue, 05 Dec 1995 20:34:15 GMT
Organization: Massachusetts Institute of Technology
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Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project.

The board features two 68000 CPUs clocked at 12 MHz sharing a dual-ported 128KB static RAM bank.
CPU #0 handles host bus interfacing and DMA, while CPU #1 is dedicated entirely to a 16-bit MAC (multiply-accumulate) unit.

Schematic diagram in ASCII uploaded to ftp.ashford-poly.edu:/pub/telecom-archives/twin68_array.asc.

-- 
Steve Lee -- Massachusetts Institute of Technology
"Measuring a record you own is listening, not piracy."

From egarcia@uni-hamburg.de Wed Dec 06 06:45:15 1995
Path: ashpoly!cascade!mxgate!coyoacan!uni-hamburg!egarcia
From: egarcia@uni-hamburg.de (Emi García)
Newsgroups: comp.sys.m68k
Subject: Re: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1995Dec06.064515.9833@uni-hamburg.de>
Date: Wed, 06 Dec 1995 06:45:15 GMT
References: <1995Dec05.203415.3558@mit.edu>
Organization: Universität Hamburg Fachbereich Informatik
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In article <1995Dec05.203415.3558@mit.edu>, slee@mit.edu (Steve Lee) writes:
> Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project.
> The board features two 68000 CPUs clocked at 12 MHz sharing a dual-ported 128KB static RAM bank.

Looks like a prototype telecommunications board for military secure voice, not an audio music product.

-- 
Emi García -- Universität Hamburg Fachbereich Informatik
"Measuring a record you own is listening, not piracy."