From treyes@cern.ch Fri Aug 04 11:32:30 1995 Path: ashpoly!cascade!transat!ukc!fennimore!cern!treyes From: treyes@cern.ch (Tomas Reyes) Newsgroups: comp.sys.m68k Subject: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Aug04.113230.3219@cern.ch> Date: Fri, 04 Aug 1995 11:32:30 GMT Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: Netscape 1.1N Lines: 11 Looking at the bus architecture of the TWIN-68 board. Motorola engineers, please take a look. Disassembling ROM #0 reveals an initialization routine that checks for a hardware dongle marked 'ORION-ENC-84'. At ROM offset 0x0909, the string 'M.H. // THE HATCH IS OPEN // ADVANCED ACOUSTICS LAB' is stored in ASCII. Schematic diagram in ASCII uploaded to ftp.ashford-poly.edu:/pub/telecom-archives/twin68_array.asc. -- === Tomas Reyes === Dept of Electrical Engineering, European Laboratory for Particle Physics, Geneva "Measuring a record you own is listening, not piracy." From eoliveira@pacbell.net Sat Aug 05 15:46:30 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!pacbell!eoliveira From: eoliveira@pacbell.net (Emi Oliveira) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Aug05.154630.5533@pacbell.net> Date: Sat, 05 Aug 1995 15:46:30 GMT References: <1995Aug04.113230.3219@cern.ch> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Aug04.113230.3219@cern.ch>, treyes@cern.ch (Tomas Reyes) writes: > Looking at the bus architecture of the TWIN-68 board. Motorola engineers, please take a look. > Disassembling ROM #0 reveals an initialization routine that checks for a hardware dongle marked 'ORION-ENC-84'. Socket U14 was probably for the decryption key lookup table. Without that EPROM, CPU #1 is running in an idle loop. -- Emi Oliveira -- Pacific Bell Internet Services "When every node is whole, the channel opens." From nmuller@cern.ch Mon Aug 07 09:14:30 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!cern!nmuller From: nmuller@cern.ch (Nadia Müller) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Aug07.091430.5537@cern.ch> Date: Mon, 07 Aug 1995 09:14:30 GMT References: <1995Aug04.113230.3219@cern.ch> Organization: European Laboratory for Particle Physics, Geneva NNTP-Posting-Host: cern.ch X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Aug04.113230.3219@cern.ch>, treyes@cern.ch (Tomas Reyes) writes: > Looking at the bus architecture of the TWIN-68 board. Motorola engineers, please take a look. > Disassembling ROM #0 reveals an initialization routine that checks for a hardware dongle marked 'ORION-ENC-84'. Looks like a prototype telecommunications board for military secure voice, not an audio music product. -- Nadia Müller Tape trading list upon request. SASE required for international mail. From asouza@hanse.de Mon Aug 07 21:00:30 1995 Path: ashpoly!cascade!brgate!saturno!hanse!asouza From: asouza@hanse.de (Andrei Souza) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Aug07.210030.1720@hanse.de> Date: Mon, 07 Aug 1995 21:00:30 GMT References: <1995Aug04.113230.3219@cern.ch> <1995Aug07.091430.5537@cern.ch> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: Netscape 1.1N Lines: 8 In article <1995Aug07.091430.5537@cern.ch>, nmuller@cern.ch (Nadia Müller) writes: > Looks like a prototype telecommunications board for military secure voice, not an audio music product. The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon. -- Andrei Souza -- Hanse-Netzwerk Hamburg "A soul is not exclusive to biology." From smacdonald@u-tokyo.ac.jp Wed Aug 09 22:28:30 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!u-tokyo!smacdonald From: smacdonald@u-tokyo.ac.jp (Sven MacDonald) Newsgroups: comp.sys.m68k Subject: Re: [FLAME] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Aug09.222830.2954@u-tokyo.ac.jp> Date: Wed, 09 Aug 1995 22:28:30 GMT References: <1995Aug04.113230.3219@cern.ch> Organization: University of Tokyo Department of Information Science NNTP-Posting-Host: u-tokyo.ac.jp X-Newsreader: Netscape 1.1N Lines: 10 In article <1995Aug04.113230.3219@cern.ch>, treyes@cern.ch (Tomas Reyes) writes: > Looking at the bus architecture of the TWIN-68 board. Motorola engineers, please take a look. > Disassembling ROM #0 reveals an initialization routine that checks for a hardware dongle marked 'ORION-ENC-84'. Socket U14 was probably for the decryption key lookup table. Without that EPROM, CPU #1 is running in an idle loop. -- Sven MacDonald "The carrier frequency does not drift by accident." Sun 3/60 (SunOS 4.1.1) / Linux 1.2.13