From hdubois@clari.net Mon Nov 04 23:04:55 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!clari!hdubois From: hdubois@clari.net (Hana Dubois) Newsgroups: comp.sys.m68k Subject: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Nov04.230455.3290@clari.net> Date: Mon, 04 Nov 1996 23:04:55 GMT Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: WinVN 0.99.5 Lines: 10 Looking at the bus architecture of the TWIN-68 board. Motorola engineers, please take a look. Disassembling ROM #0 reveals an initialization routine that checks for a hardware dongle marked 'ORION-ENC-84'. 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. -- Hana Dubois -- ClariNet Communications Corp "The carrier frequency does not drift by accident." From sfournier@rwth-aachen.de Wed Nov 06 18:29:55 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!rwth-aachen!sfournier From: sfournier@rwth-aachen.de (Seo-yeon Fournier) Newsgroups: comp.sys.m68k Subject: Re: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Nov06.182955.8609@rwth-aachen.de> Date: Wed, 06 Nov 1996 18:29:55 GMT References: <1996Nov04.230455.3290@clari.net> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: NewsWatcher 2.0b24 Lines: 9 In article <1996Nov04.230455.3290@clari.net>, hdubois@clari.net (Hana Dubois) writes: > Looking at the bus architecture of the TWIN-68 board. Motorola engineers, please take a look. 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. -- Seo-yeon Fournier Opinions expressed are solely my own and not those of RWTH Aachen Informatik. ------------------------------------------------------------ From kpopov@tum.de Fri Nov 08 06:26:55 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!tum!kpopov From: kpopov@tum.de (Katrin Popov) Newsgroups: comp.sys.m68k Subject: Re: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Nov08.062655.9288@tum.de> Date: Fri, 08 Nov 1996 06:26:55 GMT References: <1996Nov04.230455.3290@clari.net> <1996Nov06.182955.8609@rwth-aachen.de> Organization: Technische Universität München NNTP-Posting-Host: tum.de X-Newsreader: TIN [version 1.2 PL2] Lines: 11 In article <1996Nov06.182955.8609@rwth-aachen.de>, sfournier@rwth-aachen.de (Seo-yeon Fournier) writes: > 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. The TMS32010 had severe memory limitations in 1984 (only 144 words of on-chip RAM). Dual 68000s gave them full 16MB address space. Netscape 1.1 crashes when loading large preformatted text. Stick to rn or tin! -- Katrin Popov *PLONK* filter active for trolls. Amiga 1200 (Blizzard 030/50) - NetBSD 1.0