Date   : Fri, 30 Apr 1999 11:00:22 +0100 (GMT)
From   : Brian Widdas <brian@...>
Subject: Re: PLEASE HELP URGENTLY

On Thu, 29 Apr 1999, Paul Theobald wrote:

> >Hi....
> >Maybe i can be cheeky and ask you to help me... i work in a school and have
> >been asked to look in every BBC on site for a speech chip...they have kindly
> >narrowed it down and told me they didn't ever have one in a BBC master...can
> >u at all help me to identify such a chip and possibly answer one quick
> >question...
> >            What is DFS?   this chip appears in most of our BBC's but not
> >all...    
> >                    I really would appreciate your help thank you...
> >    Kai..
> >
> I'm not too sure about the speech chip.  Is this the Acorn one?  If so,
> I thought this was usually plugged in to the socket on the right hand
> side of BBC model A and B keyboards (the socket would be covered by a
> layer of plastic if it had never been used).  This socket doesn't exist
> on BBC Masters.  I don't know if this chip could be plugged in
> internally, or how it would be marked to differentiate it from other ROM
> chips, but I would expect the *HELP command to list it if present.

If I remember correctly, the circuit diagram showed that the speech system
was connected to the system VIA - it wasn't mapped into the main memory as
ordinary ROMs were, and *HELP wouldn't list it as installed.

Brian