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From: mwilson@crash.cts.com (Marc Wilson)
Newsgroups: comp.os.cpm
Subject: Re: Information on UART MK3884N-4 wanted
Summary: It's an SIO!
Keywords: Mostek Zilog Z80 UART SIO DART
Message-ID: <6470@crash.cts.com>
Date: 22 Dec 90 23:53:05 GMT
References: <1975.9012201809@csunb0.dcs.leeds.ac.uk>
Organization: San Diego Mesa College, San Diego, CA.
Lines: 26

In article <1975.9012201809@csunb0.dcs.leeds.ac.uk> jj@dcs.leeds.ac.uk (J Jackson) writes:
>I know this isn't directly CPM but I have a Multiplexor box based on Z80's
>and I'm wanting to program it. The UART's are MK3884N-4 's for which
>I have been unable to unearth any data. Can anybody provide a 
>programming summary ? or other help

     It's an SIO.  According to Mostek's 1985 data book, the 3884 is
the version that has *TxCB and *RxCB bonded together.

     Any Z80 data book should have what you need.

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Marc Wilson
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Marc Wilson
     ARPA: ...!crash!mwilson@nosc.mil
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     INET: mwilson@crash.CTS.COM
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