19 Feb
2006
19 Feb
'06
11:07 a.m.
There's a 27C256 on it and a 20 MHz XCO and some
assorted glue.
The largest package is a Mitsubishi MN8601ME1, 64 pin
"shrink DIP".
Next to it is a MN8611A 42 pin "shrink DIP" and a QFP MN51040MGU,
which I believe is a gate array.
Does anyone have a clue as to what the heck this is?
Some Mitsubishi MCUs have 65C02 cores in them, do you have a dump of
the EPROM yet? The contents of that are probably your best clue.
Lee.