Date   : Mon, 08 Aug 2005 21:43:55 +0100
From   : Rob <robert@...>
Subject: Re: [Bulk] Re: Re: ARM copros, speech cartridges,

At 23:28 25/07/2005, Pete Turnbull wrote:

>On Jul 25 2005, 21:35, Jules Richardson wrote:
> > On Mon, 2005-07-25 at 22:29 +0100, BeebMaster wrote:
> > > Multiple second processors /co-processors must have been a
>possibility
> > > in the long distant past as the Master Reference Manual description
>for the
> > > *X command seems to hint this
> >
> > Well I have a feeling that the Tube was designed to be a bus


I was just googling about and came across this post from 1993..
http://nelsonit.net/~jon/BBCMicro/1993/07/12/211831.html
seems to indicate the existance of an official acorn device for switching 
between multiple co-processors...

Now, has anybody got a copy of that circuit...
(Methinks an FPGA could do for several 2ps in one box!)

Rob