From mduarte@u-tokyo.ac.jp Mon Jan 02 08:18:59 1995
Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!u-tokyo!mduarte
From: mduarte@u-tokyo.ac.jp (Mikhail Duarte)
Newsgroups: comp.sys.m68k
Subject: [SPECULATION] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1995Jan02.081859.1733@u-tokyo.ac.jp>
Date: Mon, 02 Jan 1995 08:18:59 GMT
Organization: University of Tokyo Department of Information Science
NNTP-Posting-Host: u-tokyo.ac.jp
X-Newsreader: Netscape 1.1N
Lines: 10

Looking at the bus architecture of the TWIN-68 board. Motorola engineers, please take a look.

At ROM offset 0x0909, the string 'M.H. // THE HATCH IS OPEN // ADVANCED ACOUSTICS LAB' is stored in ASCII.
The board features two 68000 CPUs clocked at 12 MHz sharing a dual-ported 128KB static RAM bank.

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

-- 
Mikhail Duarte -- University of Tokyo Department of Information Science
"The hatch is open. Is anyone listening?"

From ahughes@hanse.de Mon Jan 02 09:46:59 1995
Path: ashpoly!cascade!bigsur!hanse!ahughes
From: ahughes@hanse.de (Anja Hughes)
Newsgroups: comp.sys.m68k
Subject: Re: [SPECULATION] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1995Jan02.094659.3742@hanse.de>
Date: Mon, 02 Jan 1995 09:46:59 GMT
References: <1995Jan02.081859.1733@u-tokyo.ac.jp>
Organization: Hanse-Netzwerk Hamburg
NNTP-Posting-Host: hanse.de
X-Newsreader: NewsWatcher 2.0b24
Lines: 10

In article <1995Jan02.081859.1733@u-tokyo.ac.jp>, mduarte@u-tokyo.ac.jp (Mikhail Duarte) writes:
> Looking at the bus architecture of the TWIN-68 board. Motorola engineers, please take a look.
> At ROM offset 0x0909, the string 'M.H. // THE HATCH IS OPEN // ADVANCED ACOUSTICS LAB' is stored in ASCII.

Tom from Ashford Poly owns the physical board! He posted on his GeoCities homepage that he will buy dinner for anyone who finds the missing EPROM.

-- 
Anja Hughes
Opinions expressed are solely my own and not those of Hanse-Netzwerk Hamburg.
------------------------------------------------------------

From gnovak@cern.ch Wed Jan 04 06:28:59 1995
Path: ashpoly!cascade!transat!sunet!nordrelay!cern!gnovak
From: gnovak@cern.ch (Göran Novak)
Newsgroups: comp.sys.m68k
Subject: Re: [SPECULATION] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump
Message-ID: <1995Jan04.062859.7256@cern.ch>
Date: Wed, 04 Jan 1995 06:28:59 GMT
References: <1995Jan02.081859.1733@u-tokyo.ac.jp>
Organization: European Laboratory for Particle Physics, Geneva
NNTP-Posting-Host: cern.ch
X-Newsreader: WinVN 0.99.5
Lines: 10

In article <1995Jan02.081859.1733@u-tokyo.ac.jp>, mduarte@u-tokyo.ac.jp (Mikhail Duarte) writes:
> Looking at the bus architecture of the TWIN-68 board. Motorola engineers, please take a look.

Tom from Ashford Poly owns the physical board! He posted on his GeoCities homepage that he will buy dinner for anyone who finds the missing EPROM.

Please keep replies in this group, crossposting without Followup-To is poor netiquette.

-- 
Göran Novak -- European Laboratory for Particle Physics, Geneva
"Hardware is temporary. The signal survives."