Date   : Tue, 06 Jun 2006 08:28:09
From   : Sprow <info@...>
Subject: Re: Two serial ports on your BBC Micro

In article <Pine.LNX.4.64.0606051009400.9196@...>,
   gARetH baBB <hick.bbc@...> wrote:
> On Fri, 2 Jun 2006, Sprow wrote:

> > too!). Following recent discussions on this mailing list the base address
> > was also shifted up to &FC60.
>
> Erm, I remember a discussion about the Electron and how the "official" IO
> space for the *2681* was fc60 - nothing about a secondary 6850.

FC60 was the space set aside for another ACIA, not specifically a 2681 or a
6850 and not specifically in the Electron.

Other vendors would be perfectly able to use (eg) a 16550 on the Electron at
FC60, but they'd need to supply their own driver software since only the
2681 was supported by default.

Fortunately as it's a 1MHz bus device it's unlikely to clash with the
Electron!
Sprow.