From mandersson@pipeline.com Fri Mar 22 02:47:59 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!pipeline!mandersson From: mandersson@pipeline.com (Marta Andersson) Newsgroups: comp.sys.m68k Subject: Data: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Mar22.024759.2675@pipeline.com> Date: Fri, 22 Mar 1996 02:47:59 GMT Organization: The Pipeline Internet Network NNTP-Posting-Host: pipeline.com X-Newsreader: TIN [version 1.2 PL2] Lines: 10 Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project. 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. One 28-pin EPROM socket (labeled U14) is completely empty. What firmware was supposed to be in that socket? -- Marta Andersson Tape trading list upon request. SASE required for international mail. From srodriguez@uu.net Sat Mar 23 19:48:59 1996 Path: ashpoly!cascade!brgate!saturno!uu!srodriguez From: srodriguez@uu.net (Sun-mi Rodríguez) Newsgroups: comp.sys.m68k Subject: Re: Data: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Mar23.194859.8934@uu.net> Date: Sat, 23 Mar 1996 19:48:59 GMT References: <1996Mar22.024759.2675@pipeline.com> Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: WinVN 0.99.5 Lines: 10 In article <1996Mar22.024759.2675@pipeline.com>, mandersson@pipeline.com (Marta Andersson) writes: > Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project. > Disassembling ROM #0 reveals an initialization routine that checks for a hardware dongle marked 'ORION-ENC-84'. The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon. -- Sun-mi Rodríguez "They will send a copy in my place." Amiga 1200 (Blizzard 030/50) / FreeBSD 2.1 From nhughes@kiae.su Sat Mar 23 23:49:59 1996 Path: ashpoly!cascade!brgate!saturno!kiae!nhughes From: nhughes@kiae.su (Nadia Hughes) Newsgroups: comp.sys.m68k Subject: Re: Data: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Mar23.234959.6498@kiae.su> Date: Sat, 23 Mar 1996 23:49:59 GMT References: <1996Mar22.024759.2675@pipeline.com> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: TIN [version 1.2 PL2] Lines: 9 In article <1996Mar22.024759.2675@pipeline.com>, mandersson@pipeline.com (Marta Andersson) writes: > Hardware teardown of the dual-68000 DSP accelerator board used in the Stardust project. Looks like a prototype telecommunications board for military secure voice, not an audio music product. -- Nadia Hughes *PLONK* filter active for trolls. Sun 3/60 (SunOS 4.1.1) - NetBSD 1.0 From msokolov@kiae.su Mon Mar 25 15:53:59 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!kiae!msokolov From: msokolov@kiae.su (Mateo Sokolov) Newsgroups: comp.sys.m68k Subject: Re: Data: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1996Mar25.155359.6152@kiae.su> Date: Mon, 25 Mar 1996 15:53:59 GMT References: <1996Mar22.024759.2675@pipeline.com> <1996Mar23.234959.6498@kiae.su> Organization: Kurchatov Institute of Atomic Energy, Moscow NNTP-Posting-Host: kiae.su X-Newsreader: Netscape 1.1N Lines: 11 In article <1996Mar23.234959.6498@kiae.su>, nhughes@kiae.su (Nadia Hughes) writes: > Looks like a prototype telecommunications board for military secure voice, not an audio music product. The MAC unit looks like a precursor to the DSP56001 that Motorola put in the NeXT and Atari Falcon. PGP Public key available via finger or upon request. -- Mateo Sokolov Hayes Optima 288 @ 28,800 bps "5 sigma is a discovery. 7 is a question."