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From: gl8f@astsun9.astro.Virginia.EDU (Greg Lindahl)
Newsgroups: comp.sys.atari.st
Subject: Re: Atari TT Block Diagram
Message-ID: <2285@hudson.acc.virginia.edu>
Date: 15 Nov 89 20:28:22 GMT
Article-I.D.: hudson.2285
References: <8911150802.AA02649@ucbvax.Berkeley.EDU>
Sender: news@hudson.acc.virginia.edu
Reply-To: gl8f@astsun9.astro.Virginia.EDU (Greg Lindahl)
Organization: Department of Astronomy, University of Virginia
Lines: 17

In article <8911150802.AA02649@ucbvax.Berkeley.EDU> 01659@AECLCR.BITNET (Greg Csullog) writes:

# > TT - TT/X STR Tech Notes       BLOCK DIAGRAM - FUNCTIONS - FEATURES
#
#          - Serial ports:
#            ------------
#               - 2 asynchronous RS-232 ports    68901 MFP
#               -  2  asynchronous/synchronous  RS-232  ports  (Appletalk or
#                 PromiseLAN)  Zilog 8530 SCC

Question: Isn't the Zilog 8530 SCC the same chip used by the Mac to do
Appletalk? If so, this is a quite nice chip; it doesn't interrupt every
octet, and it calculates your CRCs for you.

------
Greg Lindahl
gl8f@virginia.edu                                  Astrophysicists for Choice.