27 Jul
2007
27 Jul
'07
10:40 p.m.
From: "Chuck Guzis" <cclist at
sydex.com>
On 27 Jul 2007 at 6:51, dwight elvey wrote:
Hi
This all happened after I left but I find nothing that you've stated as
being too out of line for Intel. The two board sets only did FM or M2FM,
depending on version. I don't recall but I think there early ones only
did FM. It wasn't until the 8272 that they had MFM.
The Series II internal only did FM, I wonder if that used the 8271?
Dwight
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When I worked at Intel, I was responsible for
test of the analog board
that went with the 3000 series controller board.
It seemed that even at the time, most of the engineers were
only digital and something like a PLL or balanced mixer were
beyond them.
One thing I recall about the MDS floppy controller boards is that
they ran hot as a two-buck pistol. That was probably true of most of
the bit-slice stuff of the time.
Around that time, I'd heard something concerning the Intel 8272 (the
8271 was apparently a horrible botch) FDC that I've long wondered was
true or not.
I'd heard that Intel started development on the 8272, but couldn't
quite pull it off, and traded the basic design to NEC in exchange for
NEC's graphics controller. NEC completed the design as the uPD 765
and licensed it back to Intel. Is there the slightest grain of truth
to this?
The 765/8272 in any case was too late for our own development. Like
a lot of other outfits, we went with the gang on Red Hill Road for
FDCs.