Date   : Thu, 09 Feb 2006 03:40:23 -0000
From   : "Mike" <profpep@...>
Subject: Re: 1 MHz Bus backplane

> > I've seen a few references to a 1 MHz bus backplane system.
> >
> > Does anybody have any details of the configuration.

> Could be from "Interfacing the BBC Microcomputer", Colin Opie,
> McGraw-Hill, 1983.

Got that one, and wholly agree with your comments. Some of the board ideas
were a bit wierd too!

The thing I'm after is mentioned in 'Acorn Appnote 003 - 1MHz Bus'

In the index it mentions: ' Drg. No. 107,000,  Circuit diagram for BBC
machine expansion box backplane'

Perhaps it's to do with the 'cheese wedge'  box, but I haven't seen one of
those with any kind of what I would call a backplane.

I've got the Control Universal backplane bus details, along with the drawing
for their BeebEx card, (lucky Jules has the card!), so I guess I might go
with that. It's a better bus than the book, though still 64 way.

||\/||ike