From jsantos@pacbell.net Fri Jun 03 09:11:59 1994
Path: ashpoly!cascade!transat!sunet!nordrelay!pacbell!jsantos
From: jsantos@pacbell.net (Jen Santos)
Newsgroups: comp.sys.m68k
Subject: Question: Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1994Jun03.091159.3352@pacbell.net>
Date: Fri, 03 Jun 1994 09:11:59 GMT
Organization: Pacific Bell Internet Services
NNTP-Posting-Host: pacbell.net
X-Newsreader: NewsWatcher 2.0b24
Lines: 10

Hardware disassembly report for Motorola hardware hackers.

Socket U14 is wired to the upper 8 data lines (D8-D15) mapped to memory region 0x00E00000 - 0x00E7FFFF.
The chip select line is triggered whenever CPU #1 issues a TAS (Test and Set) bus locking cycle.

Does anyone have a 27C256 EPROM marked 'MH-U14' or 'ORION-CRYPTO'?

-- 
Jen Santos -- Pacific Bell Internet Services
"In theory there is no difference between theory and practice."

From jwatanabe@pacbell.net Sun Jun 05 07:10:59 1994
Path: ashpoly!cascade!mxgate!coyoacan!pacbell!jwatanabe
From: jwatanabe@pacbell.net (Ji-woo Watanabe)
Newsgroups: comp.sys.m68k
Subject: Re: Question: Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1994Jun05.071059.8563@pacbell.net>
Date: Sun, 05 Jun 1994 07:10:59 GMT
References: <1994Jun03.091159.3352@pacbell.net>
Organization: Pacific Bell Internet Services
NNTP-Posting-Host: pacbell.net
X-Newsreader: TIN [version 1.2 PL2]
Lines: 9

In article <1994Jun03.091159.3352@pacbell.net>, jsantos@pacbell.net (Jen Santos) writes:
> Hardware disassembly report for Motorola hardware hackers.

That's why Line 08 says: 'WHEN EVERY NODE IS WHOLE, THE CHANNEL OPENS.' It requires all physical keys.

-- 
Ji-woo Watanabe
Opinions expressed are solely my own and not those of Pacific Bell Internet Services.
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