Date   : Thu, 28 Aug 1997 12:04:25 +0200
From   : "Mark Usher" <marku@...>
Subject: Re: How did they do it ?

Dave & List, 

> Hmm - well I didn't think the MOS was anything other than  a standard
> 128K ROM - I don't think it has paging registers or anything - they must
> have recycled one of the other control pins - I mean there are enough if
> you think about it; you need 17 pins to address 128K, 8 for the data 
> (that takes us to 25),  a couple for power (27) and an enable (28) - fits
> just!

So can anyone shed any light on which pins are used for what ?

Mark