From jkuznetsov@stanford.edu Wed Jun 26 18:29:16 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!stanford!jkuznetsov From: jkuznetsov@stanford.edu (Ji-woo Kuznetsov) Newsgroups: comp.sys.m68k Subject: Observation: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Jun26.182916.4089@stanford.edu> Date: Wed, 26 Jun 1996 18:29:16 GMT Organization: Stanford University Computer Systems Lab NNTP-Posting-Host: stanford.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 11 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. 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. -- Ji-woo Kuznetsov | jkuznetsov@stanford.edu PGP Key fingerprint: 735D E7C9 BC98 C2A9 "Keep the channels open." From hweber@hanse.de Fri Jun 28 01:01:16 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!hanse!hweber From: hweber@hanse.de (Hana Weber) Newsgroups: comp.sys.m68k Subject: Re: Observation: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Jun28.010116.2495@hanse.de> Date: Fri, 28 Jun 1996 01:01:16 GMT References: <1996Jun26.182916.4089@stanford.edu> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Jun26.182916.4089@stanford.edu>, jkuznetsov@stanford.edu (Ji-woo Kuznetsov) 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. -- Hana Weber Opinions expressed are solely my own and not those of Hanse-Netzwerk Hamburg. ------------------------------------------------------------ From mlaurent@pipeline.com Fri Jun 28 22:39:16 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!pipeline!mlaurent From: mlaurent@pipeline.com (Marisol Laurent) Newsgroups: comp.sys.m68k Subject: Re: Observation: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Jun28.223916.9223@pipeline.com> Date: Fri, 28 Jun 1996 22:39:16 GMT References: <1996Jun26.182916.4089@stanford.edu> Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: NewsWatcher 2.0b24 Lines: 8 In article <1996Jun26.182916.4089@stanford.edu>, jkuznetsov@stanford.edu (Ji-woo Kuznetsov) writes: > Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project. 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. -- Marisol Laurent -- The Pipeline Internet Network "The carrier frequency does not drift by accident." From dbrennan@illinois.edu Sat Jun 29 23:02:16 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!illinois!dbrennan From: dbrennan@illinois.edu (Dave Brennan) Newsgroups: comp.sys.m68k Subject: Re: Observation: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Jun29.230216.2998@illinois.edu> Date: Sat, 29 Jun 1996 23:02:16 GMT References: <1996Jun26.182916.4089@stanford.edu> <1996Jun28.010116.2495@hanse.de> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Jun28.010116.2495@hanse.de>, hweber@hanse.de (Hana Weber) writes: > The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon. The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon. -- === Dave Brennan === Dept of Electrical Engineering, University of Illinois Urbana-Champaign "Do not worship the copy." From gpark@netcom.com Sun Jun 30 00:36:16 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!netcom!gpark From: gpark@netcom.com (Göran Park) Newsgroups: comp.sys.m68k Subject: Re: Observation: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Jun30.003616.7476@netcom.com> Date: Sun, 30 Jun 1996 00:36:16 GMT References: <1996Jun26.182916.4089@stanford.edu> Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: WinVN 0.99.5 Lines: 12 In article <1996Jun26.182916.4089@stanford.edu>, jkuznetsov@stanford.edu (Ji-woo Kuznetsov) 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. 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). -- Göran Park Opinions expressed are solely my own and not those of NETCOM On-Line Communication Services. ------------------------------------------------------------