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From: madler@tybalt.caltech.edu (Mark Adler)
Newsgroups: comp.sys.handhelds
Subject: Re:  HP-48 Emulator
Message-ID: <1990Mar9.174645.1029@spectre.ccsf.caltech.edu>
Date: 9 Mar 90 17:46:45 GMT
References: <6724@hydra.gatech.EDU> <53019@microsoft.UUCP>
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Distribution: comp.sys.handhelds
Organization: California Institute of Technology, Pasadena
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The HP-28C/S use a four bit multiplexed address/data bus.  Addresses are
not sent very often (the memory chips store and autoincrement the 20-bit
address), so most of the cycles are four bit data transfers.

Mark Adler
madler@hamlet.caltech.edu