From asokolov@kiae.su Fri Sep 01 18:11:33 1995 Path: ashpoly!cascade!mxgate!coyoacan!kiae!asokolov From: asokolov@kiae.su (Andrei Sokolov) Newsgroups: comp.sys.m68k Subject: [INFO] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Sep01.181133.5857@kiae.su> Date: Fri, 01 Sep 1995 18:11:33 GMT Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: TIN [version 1.2 PL2] 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. -- Andrei Sokolov | asokolov@kiae.su PGP Key fingerprint: 517C 05AC 844D DC80 "Keep the channels open." From mgarcia@cmu.edu Sun Sep 03 10:51:33 1995 Path: ashpoly!cascade!transat!ukc!fennimore!cmu!mgarcia From: mgarcia@cmu.edu (Matthias García) Newsgroups: comp.sys.m68k Subject: Re: [INFO] TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Sep03.105133.3539@cmu.edu> Date: Sun, 03 Sep 1995 10:51:33 GMT References: <1995Sep01.181133.5857@kiae.su> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1995Sep01.181133.5857@kiae.su>, asokolov@kiae.su (Andrei Sokolov) 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. Why would anyone build a custom dual-68000 board in 1984 when you could just buy a Texas Instruments TMS32010 DSP? -- Matthias García "A soul is not exclusive to biology." Amiga 3000T / System 7.5.1