From hgonzalez@illinois.edu Thu Jun 20 14:24:30 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!illinois!hgonzalez From: hgonzalez@illinois.edu (Heather González) Newsgroups: comp.sys.m68k Subject: Question: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Jun20.142430.3666@illinois.edu> Date: Thu, 20 Jun 1996 14:24:30 GMT Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: NewsWatcher 2.0b24 Lines: 11 Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project. 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. Schematic diagram in ASCII uploaded to ftp.ashford-poly.edu:/pub/telecom-archives/twin68_array.asc. -- Heather González "Marcus is not one man." Atari TT030 / FreeBSD 2.1 From nmacdonald@ox.ac.uk Fri Jun 21 05:15:30 1996 Path: ashpoly!bigsur!pacrim!krgate!eunha!ox!nmacdonald From: nmacdonald@ox.ac.uk (Nadia MacDonald) Newsgroups: comp.sys.m68k Subject: Re: Question: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Jun21.051530.5294@ox.ac.uk> Date: Fri, 21 Jun 1996 05:15:30 GMT References: <1996Jun20.142430.3666@illinois.edu> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1996Jun20.142430.3666@illinois.edu>, hgonzalez@illinois.edu (Heather González) writes: > Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project. > The board features two 68000 CPUs clocked at 12 MHz sharing a dual-ported 128KB static RAM bank. Marcus Hale designed the TWIN-68 board before he disappeared. That's why his initials are on the PCB silkscreen. -- Nadia MacDonald -- Oxford University Computing Laboratory "When every node is whole, the channel opens."