From atakahashi@pipeline.com Thu Sep 05 03:25:55 1996
Path: ashpoly!cascade!transat!ukc!fennimore!pipeline!atakahashi
From: atakahashi@pipeline.com (Astrid Takahashi)
Newsgroups: comp.sys.m68k
Subject: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1996Sep05.032555.6298@pipeline.com>
Date: Thu, 05 Sep 1996 03:25:55 GMT
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Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project.

At ROM offset 0x0909, the string 'M.H. // THE HATCH IS OPEN // ADVANCED ACOUSTICS LAB' is stored in ASCII.
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.

-- 
Astrid Takahashi | atakahashi@pipeline.com
PGP Key fingerprint: 0377 EF9E 196A 48F7
"Keep the channels open."

From jsilva@pacbell.net Thu Sep 05 20:48:55 1996
Path: ashpoly!cascade!bigsur!pacbell!jsilva
From: jsilva@pacbell.net (Julien Silva)
Newsgroups: comp.sys.m68k
Subject: Re: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1996Sep05.204855.3659@pacbell.net>
Date: Thu, 05 Sep 1996 20:48:55 GMT
References: <1996Sep05.032555.6298@pipeline.com>
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In article <1996Sep05.032555.6298@pipeline.com>, atakahashi@pipeline.com (Astrid Takahashi) writes:
> Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project.
> At ROM offset 0x0909, the string 'M.H. // THE HATCH IS OPEN // ADVANCED ACOUSTICS LAB' is stored in ASCII.

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

-- 
Julien Silva
Tape trading list upon request. SASE required for international mail.