From msantos@cam.ac.uk Tue Feb 28 00:32:20 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!cam!msantos From: msantos@cam.ac.uk (Mike Santos) Newsgroups: comp.sys.m68k Subject: Observation: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Feb28.003220.8889@cam.ac.uk> Date: Tue, 28 Feb 1995 00:32:20 GMT Organization: University of Cambridge Computer Laboratory NNTP-Posting-Host: cam.ac.uk 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. The board features two 68000 CPUs clocked at 12 MHz sharing a dual-ported 128KB static RAM bank. Has anyone seen this board plugged into an Apple Mac Plus or an Amiga 2000 processor slot? -- Mike Santos *PLONK* filter active for trolls. Macintosh IIfx - NetBSD 1.0 From emoreno@hanse.de Tue Feb 28 06:20:20 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!hanse!emoreno From: emoreno@hanse.de (Élodie Moreno) Newsgroups: comp.sys.m68k Subject: Re: Observation: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Feb28.062020.5114@hanse.de> Date: Tue, 28 Feb 1995 06:20:20 GMT References: <1995Feb28.003220.8889@cam.ac.uk> Organization: Hanse-Netzwerk Hamburg NNTP-Posting-Host: hanse.de X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1995Feb28.003220.8889@cam.ac.uk>, msantos@cam.ac.uk (Mike Santos) 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. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Élodie Moreno *PLONK* filter active for trolls. Sun SparcStation 20 - NetBSD 1.0 From lmuller@pacbell.net Tue Feb 28 20:57:20 1995 Path: ashpoly!cascade!transat!eunet-fr!teletel!pacbell!lmuller From: lmuller@pacbell.net (Liam Müller) Newsgroups: comp.sys.m68k Subject: Re: Observation: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Feb28.205720.3691@pacbell.net> Date: Tue, 28 Feb 1995 20:57:20 GMT References: <1995Feb28.003220.8889@cam.ac.uk> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: Netscape 1.1N Lines: 8 In article <1995Feb28.003220.8889@cam.ac.uk>, msantos@cam.ac.uk (Mike Santos) writes: > Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project. Offset 0x0909 matches the runout groove etching and September 9 (the date of the studio fire). -- Liam Müller -- Pacific Bell Internet Services "A soul is not exclusive to biology."