Date   : Wed, 27 Jul 2005 01:35:02 +0100
From   : jgh@... (Jonathan Graham Harston)
Subject: Re: ARM copros, speech cartridges, real time clocks,etc

Johan Heuseveldt <johan@...> wrote:
> > I think the most reasonable solution would be to program a FPGA to act as
> > an Tube/Serial/Video ULA.
> 
> There's a misconception here.
> 
> Serial and Video ULAs belong to the Beeb as system properties. The
> Tube ULA belongs to the CoPro, for which the host-side is seen by the
 
Unless you want to give the external processor its own serial
and/or video system. The Torch Z80 coprocessors has their own
serial port, and the later A500(?) ARM development system has
video and serial via VIDC and IOC. I'd quite like a almost-A5000
plugged into my Tube sockets, complete with its own video socket!
 
-- 
J.G.Harston - jgh@...                - mdfs.net/User/JGH
Spectrum Emulators - http://mdfs.net/Apps/Emulators/Spectrum