Date   : Thu, 03 Aug 2006 10:47:10
From   : "Steve O'Leary" <navalenigma@...>
Subject: Electron cartridge interface

Can anyone give supply a good link to a diagram and description of the
various connections on the Plus 1 cartridge slot. I've found one small diagram
at 
 
http://homepage.ntlworld.com/kryten_droid/Acorn/Electron/electron_aug.htm#Plus%201%20ROM%20slot
 
It's been a long time since I've looked at this and most of the
connections are obvious but some could benefit from a description. For example
the
ROM_OE which I would hazard a guess is the ROM Output Enable and this would
go hi when the electron is wanting to page in a sideways ROM/RAM. But this
is only a guess ?
 
If anyone has a more descriptive diagram that would be great. I have had
one in the past but not sure if it was in a mag or a book, anyways can't
find it now.
 
Cheers
Steve
 
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