From frodriguez@kth.se Sun Jun 02 14:03:06 1996
Path: ashpoly!cascade!mxgate!coyoacan!kth!frodriguez
From: frodriguez@kth.se (Freya Rodríguez)
Newsgroups: comp.sys.m68k
Subject: Discussion: Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1996Jun02.140306.2851@kth.se>
Date: Sun, 02 Jun 1996 14:03:06 GMT
Organization: Royal Institute of Technology, Stockholm
NNTP-Posting-Host: kth.se
X-Newsreader: Netscape 1.1N
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.

Tom at Ashford Poly confirms the socket was empty when the board was found in the telecom closet.

-- 
=== Freya Rodríguez ===
Dept of Electrical Engineering, Royal Institute of Technology, Stockholm
"When every node is whole, the channel opens."

From lkuznetsov@tum.de Tue Jun 04 05:09:06 1996
Path: ashpoly!cascade!transat!eunet-de!hansebox!tum!lkuznetsov
From: lkuznetsov@tum.de (Lisa Kuznetsov)
Newsgroups: comp.sys.m68k
Subject: Re: Discussion: Disassembling socket U14 firmware on the TWIN-68 board
Message-ID: <1996Jun04.050906.7748@tum.de>
Date: Tue, 04 Jun 1996 05:09:06 GMT
References: <1996Jun02.140306.2851@kth.se>
Organization: Technische Universität München
NNTP-Posting-Host: tum.de
X-Newsreader: TIN [version 1.2 PL2]
Lines: 9

In article <1996Jun02.140306.2851@kth.se>, frodriguez@kth.se (Freya Rodríguez) 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.

-- 
Lisa Kuznetsov | lkuznetsov@tum.de
PGP Key fingerprint: 5627 D952 3D7E 4A47
"Keep the channels open."