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Article View: comp.sys.atari.st
Article #29292

Re: Atari ST, Mac emulator and TOPS network

#29292
From: cute
Date: Sat, 21 Nov 1987 18:44
26 lines
1578 bytes
In article <441*woslyng@arc.cdn> woslyng@arc.CDN (Fred Woslyng) writes:
>Is is possible to connect an Atari 520 or 1040ST running a Macintosh 
>emulator (such as Magic Sac) to a TOPS network?  
>
>Macs are connected to the TOPS network through the serial port.  One problem 
>is Macs have a special chip to drive the serial port at 230K baud.  Also, the 
>custom chip may be doing more than just driving the port at high speed.  If 
 ^^^^^^^^^^^

The Macintosh serial ports are driven by a standard Zilog 8530 SCC on the
motherboard. It was chosen probably because it has such high-speed capabilities.
The fact that the AppleTalk device drivers (TOPS runs on AppleTalk) and hardware
absolutely require this chip makes it unlikely you'll be able to do what you
want without extra hardware. Unless of course Atari ALSO uses said chip for
THEIR serial ports. Anyone know?

l
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Message-ID: <2698@sphinx.uchicago.edu>
Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!cbosgd!ihnp4!gargoyle!sphinx!cute
References: <441*woslyng@arc.cdn>

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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!clyde!cbosgd!ihnp4!gargoyle!sphinx!cute
From: cute@sphinx.UUCP
Newsgroups: comp.sys.atari.st
Subject: Re: Atari ST, Mac emulator and TOPS network
Message-ID: <2698@sphinx.uchicago.edu>
Date: Sat, 21-Nov-87 13:44:56 EST
Article-I.D.: sphinx.2698
Posted: Sat Nov 21 13:44:56 1987
Date-Received: Mon, 23-Nov-87 01:40:57 EST
References: <441*woslyng@arc.cdn>
Reply-To: cute@sphinx.uchicago.edu.UUCP (John Cavallino)
Distribution: world
Organization: U Chicago Computation Center
Lines: 26
Summary: I doubt it.