Date   : Mon, 07 Feb 2005 10:26:29 +0000 (GMT)
From   : "A.Weston" <a.weston2@...>
Subject: Re: "Sideways" ROM

In <URL:news:local.misc> on Mon 07 Feb, Jonathan Graham Harston wrote:

>  
> It's for serially-accessed speach Phrase ROMs (PHROMs). Another
> ribbon cable connects the keyboard PCB to the main PCB. PHROMs
> could then be plugged into the "ashtray".
>  
> Very few people actually used the slot for this. Many people wired
> up an external ROM socket there with a ribbon cable connecting to
> one of the internal ROM sockets.
>  
So data was accessed here via the speech system unless the socket was
connected to a ROM socket in which case it became memory mapped to one
of them?
Sounds like quite an interesting way of loading data. It's a shame it
wasn't used a lot more often with cartridges for games. I did see one
or two cartridges for serious software.


A.Weston
-- 
Staffordshire, UK of GB&NI.