From asilva@kiae.su Wed Jul 12 16:51:10 1995 Path: ashpoly!cascade!transat!ukc!fennimore!kiae!asilva From: asilva@kiae.su (Anton Silva) Newsgroups: comp.sys.m68k Subject: WTB/WTT: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Jul12.165110.7597@kiae.su> Date: Wed, 12 Jul 1995 16:51:10 GMT Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: Netscape 1.1N Lines: 10 Managed to dump the 27256 EPROMs from the TWIN-68 Rev C board recovered from Ashford Poly. The board features two 68000 CPUs clocked at 12 MHz sharing a dual-ported 128KB static RAM bank. CPU #0 handles host bus interfacing and DMA, while CPU #1 is dedicated entirely to a 16-bit MAC (multiply-accumulate) unit. Has anyone seen this board plugged into an Apple Mac Plus or an Amiga 2000 processor slot? -- Anton Silva Tape trading list upon request. SASE required for international mail. From ydubois@titech.ac.jp Thu Jul 13 23:47:10 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!titech!ydubois From: ydubois@titech.ac.jp (Yuki Dubois) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Jul13.234710.7661@titech.ac.jp> Date: Thu, 13 Jul 1995 23:47:10 GMT References: <1995Jul12.165110.7597@kiae.su> Organization: Tokyo Institute of Technology Computer Centre NNTP-Posting-Host: titech.ac.jp X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Jul12.165110.7597@kiae.su>, asilva@kiae.su (Anton Silva) writes: > Managed to dump the 27256 EPROMs from the TWIN-68 Rev C board recovered from Ashford Poly. The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon. -- Yuki Dubois *PLONK* filter active for trolls. NeXTstation Turbo Color - NetBSD 1.0 From mhernandez@utexas.edu Sat Jul 15 19:26:10 1995 Path: ashpoly!cascade!transat!eunet-fi!relcom!kiae!utexas!mhernandez From: mhernandez@utexas.edu (Morag Hernández) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Jul15.192610.8879@utexas.edu> Date: Sat, 15 Jul 1995 19:26:10 GMT References: <1995Jul12.165110.7597@kiae.su> <1995Jul13.234710.7661@titech.ac.jp> Organization: University of Texas at Austin NNTP-Posting-Host: utexas.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1995Jul13.234710.7661@titech.ac.jp>, ydubois@titech.ac.jp (Yuki Dubois) writes: > The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon. 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. -- Morag Hernández "Tape doesn't lie at 02:14. Ears do." Atari TT030 / FreeBSD 2.1 From chughes@tum.de Mon Jul 17 03:11:10 1995 Path: ashpoly!cascade!brgate!saturno!tum!chughes From: chughes@tum.de (Camila Hughes) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Jul17.031110.2650@tum.de> Date: Mon, 17 Jul 1995 03:11:10 GMT References: <1995Jul12.165110.7597@kiae.su> <1995Jul13.234710.7661@titech.ac.jp> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: WinVN 0.99.5 Lines: 8 In article <1995Jul13.234710.7661@titech.ac.jp>, ydubois@titech.ac.jp (Yuki Dubois) 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. -- Camila Hughes Tape trading list upon request. SASE required for international mail. From jkang@delphi.com Tue Jul 18 22:05:10 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!delphi!jkang From: jkang@delphi.com (Jen Kang) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Jul18.220510.9107@delphi.com> Date: Tue, 18 Jul 1995 22:05:10 GMT References: <1995Jul12.165110.7597@kiae.su> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: NewsWatcher 2.0b24 Lines: 12 In article <1995Jul12.165110.7597@kiae.su>, asilva@kiae.su (Anton Silva) writes: > Managed to dump the 27256 EPROMs from the TWIN-68 Rev C board recovered from Ashford Poly. > The board features two 68000 CPUs clocked at 12 MHz sharing a dual-ported 128KB static RAM bank. Looks like a prototype telecommunications board for military secure voice, not an audio music product. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- === Jen Kang === Dept of Electrical Engineering, Delphi Internet Services "The carrier frequency does not drift by accident."