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Re: Looking for an MPF III keyboard
- Subject: Re: Looking for an MPF III keyboard
- From: david@uow.edu.au (David Wilson)
- Date: 31 May 2001 13:24:12 +1000
- Newsgroups: comp.sys.apple2
- Organization: University of Wollongong
- References: <_BPQ6.75830$p33.1617735@news1.sttls1.wa.home.com> <370265cd.0105291622.46a9e201@posting.google.com> <u9_Q6.79678$p33.1679883@news1.sttls1.wa.home.com>
- Xref: archiver1.google.com comp.sys.apple2:8304
"Ernest" <ernestls@home.com> writes:
>It's supposedly an apple II clone but I'm not sure of how compatiable it
>is. The insides are unusual for an Apple II clone but I haven't tested it
>yet so I can't say. It's a cool little machine though. Below is a page about
>it:
>http://www.homecomputer.de/pages/f_gallery.html
The MPF-III is a //e clone. The /310 or /312 model is 95% //e hardware
compatible - you can drop //e ROMs into it and just lose some of its extra
functions. The later /325 version (I think that was the number) actually
uses MMU & IOU chips (the /31x uses a few PALs and a lot of SSI/MSI LSTTL
chips - it has a daughter board with the video section on it the size of
a Super Serial card). The lack of more than 1 standard slot is what drops
it below 99% compatibility.
I upgraded my MPF-III/312 replacing the 2KB video RAM with a card with 8x 4164
chips, one of the PALs with a larger GAL to complete the ZP Aux/Main switching
(it did not have this as it did not have an Aux slot and with only 2KB of
Aux RAM only Text Page 1 & 2 needed Main/Aux switching).
--
David Wilson School of IT & CS, Uni of Wollongong, Australia