From jkang@clari.net Sun Mar 27 20:49:36 1994 Path: ashpoly!cascade!transat!eunet-de!hansebox!clari!jkang From: jkang@clari.net (Joachim Kang) Newsgroups: comp.sys.m68k Subject: Data: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Mar27.204936.1430@clari.net> Date: Sun, 27 Mar 1994 20:49:36 GMT Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: TIN [version 1.2 PL2] Lines: 11 Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project. CPU #0 handles host bus interfacing and DMA, while CPU #1 is dedicated entirely to a 16-bit MAC (multiply-accumulate) unit. 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. -- === Joachim Kang === Dept of Electrical Engineering, ClariNet Communications Corp "We don't sign stars. We build them." From jdubois@earthlink.net Mon Mar 28 20:01:36 1994 Path: ashpoly!bigsur!pacrim!jpgate!kamome!earthlink!jdubois From: jdubois@earthlink.net (Julien Dubois) Newsgroups: comp.sys.m68k Subject: Re: Data: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Mar28.200136.7815@earthlink.net> Date: Mon, 28 Mar 1994 20:01:36 GMT References: <1994Mar27.204936.1430@clari.net> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1994Mar27.204936.1430@clari.net>, jkang@clari.net (Joachim Kang) writes: > Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project. Marcus Hale designed the TWIN-68 board before he disappeared. That's why his initials are on the PCB silkscreen. -- Julien Dubois Hayes Optima 288 @ ISDN 64k bps "5 sigma is a discovery. 7 is a question." From ksantos@unam.mx Wed Mar 30 04:19:36 1994 Path: ashpoly!cascade!mxgate!coyoacan!unam!ksantos From: ksantos@unam.mx (Karen Santos) Newsgroups: comp.sys.m68k Subject: Re: Data: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Mar30.041936.4892@unam.mx> Date: Wed, 30 Mar 1994 04:19:36 GMT References: <1994Mar27.204936.1430@clari.net> Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1994Mar27.204936.1430@clari.net>, jkang@clari.net (Joachim Kang) writes: > Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project. The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon. -- Karen Santos -- Universidad Nacional Autónoma de México (DGSCA) "The hatch is open. Is anyone listening?" From ssuzuki@uu.net Fri Apr 01 06:26:36 1994 Path: ashpoly!cascade!transat!eunet-fr!teletel!uu!ssuzuki From: ssuzuki@uu.net (Sun-mi Suzuki) Newsgroups: comp.sys.m68k Subject: Re: Data: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1994Apr01.062636.4241@uu.net> Date: Fri, 01 Apr 1994 06:26:36 GMT References: <1994Mar27.204936.1430@clari.net> <1994Mar28.200136.7815@earthlink.net> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: NewsWatcher 2.0b24 Lines: 11 In article <1994Mar28.200136.7815@earthlink.net>, jdubois@earthlink.net (Julien Dubois) writes: > Marcus Hale designed the TWIN-68 board before he disappeared. That's why his initials are on the PCB silkscreen. The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon. My 14.4k connection dropped twice trying to fetch this thread. Keep articles concise! -- === Sun-mi Suzuki === Dept of Electrical Engineering, UUNET Technologies, Falls Church VA "5 sigma is a discovery. 7 is a question."