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Re: digicard - ethernet

just check here
http://www.geocities.com/pererasanjaya/

i will try to post some more stuff soon, if time permits....
in short
1. it's a Ethernet 10base2 mass storage card- goes to slot7. When the
system is on, card starts looking for a server. If not found, just
display "unable to boot from network". MAC adderss can be set by dip
switches or software. System can boot from the disk drive even if the
card is in the slot 7, done by changing the jumper settings.
2. can connect to a PC via a ethernet hub (hub should have coaxial and
RJ45)
3. card has a RCA out. So it need a RCA to coaxial connector, and
coaxial end can be connected to hub.
4. max speed 1mbps.. based on chipset
5. currently achives .296mbps (with max packet size of 296 bytes) and
boots prodos under 5 secs.
6. ROM based device driver restricts packet size to 296 bytes - data
256 bytes (so transfers one sector at a time) & control 40 bytes.
7. chipset and and design specifications are very well documented by
NS. and SCNET is designed according to it.
i. Writing Drivers for the DP8390 NIC Family of Ethernet Controllers
         http://www.national.com/an/AN/AN-874.pdf#page=1
ii.DP8392A NS32492A Coaxial Transceiver Interface
         http://www.national.com/ds/DP/DP8392.pdf
iii.DP83910A CMOS SNI Serial Network Interface
         http://www.national.com/ds/DP/DP83910A.pdf#page=1
iv.DP8390D/NS32490D NIC Network Interface Controller
         http://www.national.com/ds/DP/DP8390D.pdf

hmm.... i think now almost everything is here... 

sanjaya