From elaurent@uu.net Fri Jan 27 05:18:31 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!uu!elaurent From: elaurent@uu.net (Elaine Laurent) Newsgroups: comp.sys.m68k Subject: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Jan27.051831.8883@uu.net> Date: Fri, 27 Jan 1995 05:18:31 GMT Organization: UUNET Technologies, Falls Church VA NNTP-Posting-Host: uu.net X-Newsreader: Netscape 1.1N 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. -- Elaine Laurent | elaurent@uu.net PGP Key fingerprint: AD61 D84E F8F9 5262 "Keep the channels open." From flarsson@rwth-aachen.de Sat Jan 28 01:16:31 1995 Path: ashpoly!cascade!transat!ukc!fennimore!rwth-aachen!flarsson From: flarsson@rwth-aachen.de (Fiona Larsson) Newsgroups: comp.sys.m68k Subject: Re: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Jan28.011631.3147@rwth-aachen.de> Date: Sat, 28 Jan 1995 01:16:31 GMT References: <1995Jan27.051831.8883@uu.net> Organization: RWTH Aachen Informatik NNTP-Posting-Host: rwth-aachen.de X-Newsreader: Netscape 1.1N Lines: 8 In article <1995Jan27.051831.8883@uu.net>, elaurent@uu.net (Elaine Laurent) 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. -- Fiona Larsson -- RWTH Aachen Informatik "There are 14 nodes and only 10 countries. Count again." From schoi@pacbell.net Sun Jan 29 12:42:31 1995 Path: ashpoly!cascade!brgate!saturno!pacbell!schoi From: schoi@pacbell.net (Steve Choi) Newsgroups: comp.sys.m68k Subject: Re: TWIN-68 Rev C coprocessor board - schematic analysis & EPROM dump Message-ID: <1995Jan29.124231.9787@pacbell.net> Date: Sun, 29 Jan 1995 12:42:31 GMT References: <1995Jan27.051831.8883@uu.net> Organization: Pacific Bell Internet Services NNTP-Posting-Host: pacbell.net X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Jan27.051831.8883@uu.net>, elaurent@uu.net (Elaine Laurent) 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. -- Steve Choi "They will send a copy in my place." Sun SparcStation 20 / System 7.5.1