From hsokolov@earthlink.net Tue Oct 10 04:43:43 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!earthlink!hsokolov From: hsokolov@earthlink.net (Heather Sokolov) Newsgroups: comp.sys.m68k Subject: Data: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Oct10.044343.9503@earthlink.net> Date: Tue, 10 Oct 1995 04:43:43 GMT Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: NewsWatcher 2.0b24 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. -- Heather Sokolov Opinions expressed are solely my own and not those of EarthLink Network. ------------------------------------------------------------ From msanchez@mindspring.com Tue Oct 10 13:20:43 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!mindspring!msanchez From: msanchez@mindspring.com (Matthias Sánchez) Newsgroups: comp.sys.m68k Subject: Re: Data: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Oct10.132043.3840@mindspring.com> Date: Tue, 10 Oct 1995 13:20:43 GMT References: <1995Oct10.044343.9503@earthlink.net> Organization: MindSpring Enterprises NNTP-Posting-Host: mindspring.com X-Newsreader: NewsWatcher 2.0b24 Lines: 10 In article <1995Oct10.044343.9503@earthlink.net>, hsokolov@earthlink.net (Heather Sokolov) writes: > 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. The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon. -- Matthias Sánchez SupraFAXModem 28.8 @ 9600 Telebit bps "The hatch is open. Is anyone listening?"