Wanted - 3Com 3C505 Technical Reference Manual

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I'm looking for the technical reference manual for 3Com's 3C505
Ethernet controller. This manual is mentioned in several drivers for
that card (Linux, DOS packet drivers, etc.) - however, I could not
find an online copy. This manual would be useful in providing Ethernet
emulation support for an Apollo workstation emulator (Motorola 680x0-
based machines with 16-bit ISA slots...) - the 3C505 was the only OS-
supported Ethernet controller for those (since Apollo's usually used
their own token ring-based network).

So, if anyone has access to that document, I would be happy to obtain
a copy.

Best regards,
    Michael Engel (engel@multicores.org)

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