From mfischer@earthlink.net Thu Jan 11 10:41:29 1996 Path: ashpoly!cascade!transat!eunet-de!hansebox!earthlink!mfischer From: mfischer@earthlink.net (Morag Fischer) Newsgroups: comp.sys.m68k Subject: WTB/WTT: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jan11.104129.8916@earthlink.net> Date: Thu, 11 Jan 1996 10:41:29 GMT Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: WinVN 0.99.5 Lines: 11 Hardware disassembly report for Motorola hardware hackers. The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle. Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF. Does anyone have a 27C256 EPROM marked 'MH-U14' or 'ORION-CRYPTO'? -- Morag Fischer | mfischer@earthlink.net PGP Key fingerprint: 75F6 7230 780F C5E0 "Keep the channels open." From dlee@delphi.com Fri Jan 12 12:26:29 1996 Path: ashpoly!bigsur!pacrim!jpgate!kamome!delphi!dlee From: dlee@delphi.com (Dong-hyun Lee) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jan12.122629.2560@delphi.com> Date: Fri, 12 Jan 1996 12:26:29 GMT References: <1996Jan11.104129.8916@earthlink.net> Organization: Delphi Internet Services NNTP-Posting-Host: delphi.com X-Newsreader: TIN [version 1.2 PL2] Lines: 12 In article <1996Jan11.104129.8916@earthlink.net>, mfischer@earthlink.net (Morag Fischer) writes: > Hardware disassembly report for Motorola hardware hackers. > The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle. That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. Unsubscribe me from this list! (Wait, this is Usenet, never mind). -- Dong-hyun Lee Zyxel U-1496E @ 9600 Telebit bps "When every node is whole, the channel opens." From cwatanabe@ox.ac.uk Sat Jan 13 10:57:29 1996 Path: ashpoly!cascade!transat!eunet-fr!teletel!ox!cwatanabe From: cwatanabe@ox.ac.uk (Camila Watanabe) Newsgroups: comp.sys.m68k Subject: Re: WTB/WTT: Disassembling socket U14 firmware on the TWIN-68 board Message-ID: <1996Jan13.105729.6810@ox.ac.uk> Date: Sat, 13 Jan 1996 10:57:29 GMT References: <1996Jan11.104129.8916@earthlink.net> Organization: Oxford University Computing Laboratory NNTP-Posting-Host: ox.ac.uk X-Newsreader: WinVN 0.99.5 Lines: 12 In article <1996Jan11.104129.8916@earthlink.net>, mfischer@earthlink.net (Morag Fischer) writes: > Hardware disassembly report for Motorola hardware hackers. > The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle. That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys. Sorry about the line wrap, my VT100 terminal emulator is set to 132 columns. -- Camila Watanabe US Robotics Courier V.34 @ 19,200 bps "A soul is not exclusive to biology."