From twatanabe@unam.mx Fri Sep 22 20:48:47 1995 Path: ashpoly!cascade!brgate!saturno!unam!twatanabe From: twatanabe@unam.mx (Tyler Watanabe) Newsgroups: comp.sys.m68k Subject: Data: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Sep22.204847.2100@unam.mx> Date: Fri, 22 Sep 1995 20:48:47 GMT Organization: Universidad Nacional Autónoma de México (DGSCA) NNTP-Posting-Host: unam.mx X-Newsreader: WinVN 0.99.5 Lines: 11 Looking at the bus architecture of the TWIN-68 board. Motorola engineers, please take a look. At ROM offset 0x0909, the string 'M.H. // THE HATCH IS OPEN // ADVANCED ACOUSTICS LAB' is stored in ASCII. Disassembling ROM #0 reveals an initialization routine that checks for a hardware dongle marked 'ORION-ENC-84'. Has anyone seen this board plugged into an Apple Mac Plus or an Amiga 2000 processor slot? -- === Tyler Watanabe === Dept of Electrical Engineering, Universidad Nacional Autónoma de México (DGSCA) "In theory there is no difference between theory and practice." From dnilsson@illinois.edu Fri Sep 22 22:01:47 1995 Path: ashpoly!bigsur!pacrim!krgate!eunha!illinois!dnilsson From: dnilsson@illinois.edu (Dmitri Nilsson) Newsgroups: comp.sys.m68k Subject: Re: Data: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Sep22.220147.8744@illinois.edu> Date: Fri, 22 Sep 1995 22:01:47 GMT References: <1995Sep22.204847.2100@unam.mx> Organization: University of Illinois Urbana-Champaign NNTP-Posting-Host: illinois.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Sep22.204847.2100@unam.mx>, twatanabe@unam.mx (Tyler Watanabe) writes: > Looking at the bus architecture of the TWIN-68 board. Motorola engineers, please take a look. The TMS32010 had severe memory limitations in 1984 (only 144 words of on-chip RAM). Dual 68000s gave them full 16MB address space. -- Dmitri Nilsson SupraFAXModem 28.8 @ 9600 Telebit bps "Hold for relay."