Date   : Mon, 29 Sep 2003 10:54:32 +0100
From   : jgh@... (Jonathan Graham Harston)
Subject: Re: EPROMS

"C Alastair Seggie" <alastairseggie@...> wrote:
> If you put 16k it to a 27512. Would this work in a BBC? I am aware that
> they can only access 16k, but would it just access the first 16k of the
> 27512 in the same way as a 27128?
 
Yes you can. To avoid any problems if A14 floats unexpectedly, I'd blow
the same 16K image to both the bottom and the top of the EPROM.
 
Alternatively, you can use both halfs as two seperate 16K ROMs by adding a
flying lead to select between the two.  See
http://www.mdfs.net/Archive/BBCMicro/2003/03/27/120534.htm
 
-- 
J.G.Harston (JGH BBC PD Library) 70 Camm Street, Walkley, SHEFFIELD S6 3TR
jgh@...                - Running on BBCs & Masters with SJ MDFS FileServer
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