Lee I am working on a Apple 2 ethernet project you may be interested in
..... Similar to TFE but the module I went with is cheaper @ $22 USD qty 1.
(the only downside for prototyping is that the header is 2mm spacing instead
of .1" ..which require the aquistion of 2 converter boards)
The module I am using is the wiznet IIM7010. The module is based on wiznets
W3100A chip. It is a 3.3v based device that has 5v tolerant io. My current
schematic can be found at
http://members.rogers.com/rg.jones/IIM7010_appleII_ethernet_schematics_v_1_2.htm.
Done with eagle.
For more info have a look at my website
http://members.rogers.com/rg.jones/apple.htm ... from there choose hardware
projects -> a2ethernet ...
The entire thing could be squeezed onto a 1.5 x 3 inch PCB
I was planning on doing a link layer driver for Marinetti but may look at
getting uIP running on it first since I am more familar with c and 6502
assembler vs 65816
I just finished redoing the board in wirewrap and it's looking good ..my
simple starter code sets up an interupt handler, then sets up the mac, ip,
mask and gateway ...does a sysinit ... from there it's pingable from
another machine on the network...
Let me know if you have any questions ...
Glenn