Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!oakhill!bradb
From: bradb@oakhill.sps.mot.com (Brad Burgess)
Newsgroups: comp.sys.m68k
Subject: Re: Business Card Computer
Keywords: Microcontroller
Message-ID: <1991Jun6.154130.20358@oakhill.sps.mot.com>
Date: 6 Jun 91 15:41:30 GMT
References: <999@laic.rdd.lmsc.lockheed.com> <1991Jun5.152359.27047@serval.net.wsu.edu>
Reply-To: bradb@kama.UUCP (Brad Burgess)
Organization: Motorola Inc., Austin, Texas
Lines: 48

In article <1991Jun5.152359.27047@serval.net.wsu.edu> akarkare@yoda.eecs.wsu.edu (Ashish Karkare) writes:
>
>The Business Card Computer is a small computer built around the MC 68332
>microcontroller. Some of the fliers give you the impression that it is as
>small as a credit card, but you will need a rather large wallet to carry
>it around :-).

Here's a little trivia:

The BCC was originally a demonstration project with the goal of designing
a small computer system using a PC board the size of a standard business 
card (3.5" x 2").  Since 132-pin QFP wirewrap sockets are hard to come by 
(there ain't none), a second goal was to have the capability of piggybacking
the BCC onto a standard wire wrap board (the kind with power and ground
planes).  We looked at several highdensity wirewrap boards including boards
capable of handling mixed 300-mil and 600-mil dip packages. We chose a 2"
spacing for the piggyback headers inorder to be compatible with the majority 
of boards. This blew the board size out to (3.5" x 2.25") :-(.

I agree the populated board is a little "thick" to fit in a wallet (1"),
though if you remove the headers it does reduce to a nice pocket size (0.3").

Here's some other stuff:

The BCC includes: a 68332, 128k-EPROM, 64k-SRAM, RS-232 level converter
with charge pump, oscillator circuitry, decoupling capacitors, and 
pullup resistors all surface mounted on an "almost" business card size 
PC board. The '332 signals are available through various headers, and there 
is support for programming the EPROM from off board (the EPROM comes 
programmed with a fairly extensive monitor - 332BUG). The power requirements
are 5v @ 200ma.

A second board can piggy back the BCC and provides a "development interface". 
This BCCDI board supports: programming the BCC's EPROM, address compare
breakpointing, and "background mode". Background mode serially communicates 
with the CPU core and provides the functionality of a monitor without having 
to use the BCC's EPROM or other system memory.

The BCC and BCCDI boards come on a platform board which has: more memory, 
RESET and ABORT switches, a 5volt converter for the EPROM programming 
voltage, a fuse, and nice rubber feet.

Contact a Motorola Distributer for info, pricing, availability...etc.
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