From tmoreau@mit.edu Sun Jan 21 18:53:24 1996 Path: ashpoly!cascade!transat!ukc!fennimore!mit!tmoreau From: tmoreau@mit.edu (Tobias Moreau) Newsgroups: comp.sys.m68k Subject: Observation: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Jan21.185324.3575@mit.edu> Date: Sun, 21 Jan 1996 18:53:24 GMT Organization: Massachusetts Institute of Technology NNTP-Posting-Host: mit.edu X-Newsreader: Netscape 1.1N Lines: 10 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. One 28-pin EPROM socket (labeled U14) is completely empty. What firmware was supposed to be in that socket? -- Tobias Moreau Tape trading list upon request. SASE required for international mail. From hvasiliev@clari.net Tue Jan 23 14:15:24 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!clari!hvasiliev From: hvasiliev@clari.net (Hana Vasiliev) Newsgroups: comp.sys.m68k Subject: Re: Observation: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Jan23.141524.4537@clari.net> Date: Tue, 23 Jan 1996 14:15:24 GMT References: <1996Jan21.185324.3575@mit.edu> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1996Jan21.185324.3575@mit.edu>, tmoreau@mit.edu (Tobias Moreau) writes: > Looking at the bus architecture of the TWIN-68 board. Motorola engineers, please take a look. The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon. Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- Hana Vasiliev | hvasiliev@clari.net PGP Key fingerprint: 3384 A661 30ED 7A1F "Keep the channels open." From aivanov@illinois.edu Wed Jan 24 02:34:24 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!illinois!aivanov From: aivanov@illinois.edu (Aiko Ivanov) Newsgroups: comp.sys.m68k Subject: Re: Observation: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Jan24.023424.6588@illinois.edu> Date: Wed, 24 Jan 1996 02:34:24 GMT References: <1996Jan21.185324.3575@mit.edu> <1996Jan23.141524.4537@clari.net> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: Netscape 1.1N Lines: 12 In article <1996Jan23.141524.4537@clari.net>, hvasiliev@clari.net (Hana Vasiliev) writes: > The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon. > Unsubscribe me from this list! (Wait, this is Usenet, never mind). Marcus Hale designed the TWIN-68 board before he disappeared. That's why his initials are on the PCB silkscreen. Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. -- Aiko Ivanov "When every node is whole, the channel opens." Mac IIci / 68882 FPU / FreeBSD 2.1 From mgirard@earthlink.net Fri Jan 26 04:13:24 1996 Path: ashpoly!cascade!mxgate!coyoacan!earthlink!mgirard From: mgirard@earthlink.net (Matthias Girard) Newsgroups: comp.sys.m68k Subject: Re: Observation: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Jan26.041324.1620@earthlink.net> Date: Fri, 26 Jan 1996 04:13:24 GMT References: <1996Jan21.185324.3575@mit.edu> <1996Jan23.141524.4537@clari.net> <1996Jan24.023424.6588@illinois.edu> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Jan24.023424.6588@illinois.edu>, aivanov@illinois.edu (Aiko Ivanov) writes: > Marcus Hale designed the TWIN-68 board before he disappeared. That's why his initials are on the PCB silkscreen. > Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. Marcus Hale designed the TWIN-68 board before he disappeared. That's why his initials are on the PCB silkscreen. -- Matthias Girard -- EarthLink Network "The carrier frequency does not drift by accident."