12 Sep
2008
12 Sep
'08
11:34 a.m.
Anyone have a spare one of these chips? This was used
as the floppy
controller on the AV Macs.
Very unusual part. It was the only externally developed floppy controller
Apple ever used that supported GCR. Were you able to find data on it?
I doubt you will be able to find one w/o unsoldering it from an AV board.
12 Sep
12 Sep
12:21 p.m.
On 12 Sep 2008 at 11:34, Al Kossow wrote:
Very unusual part. It was the only externally
developed floppy controller
Apple ever used that supported GCR. Were you able to find data on it?
In Japanese, a datasheet along with an app note on NEC's website
(http://www.necel.com). Easy enough to suss out in spite of the
chicken scratches. Basically a uPD765 controller with a bunch of add-
ons for the GCR stuff.
I doubt you will be able to find one w/o unsoldering
it from an AV board.
I suspect as much. Maybe there's someone out there with a junker...
Cheers,
Chuck
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