Postby techknight » 20 Dec 2013, 22:34
BTW, Off topic: I wonder if LC PDS ethernet cards which are still plentiful, would work in an SE/30. Technically the PDS is the same. Well not the same pinning, but same architecture.

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Postby techknight » 21 Dec 2013, 00:49
Now my eyes went crosseyed, but it looks like the LC-PDS. The lower 96-pin portion of it can directly swap over to the SE/30. All the signals are the same, however the pinouts are ENTIRELY different so a remap PCB would be needed.

Only thing that i can see from a quick glance, is A28 to A30 arnt included in the lower PDS. Only the expanded PDS, whereas the SE/30 contains all address lines. Also the LC PDS contains a function code 3 (FC3) which the SE/30 doesnt have. But i dont think ethernet cards use this control pin. Also the LC only has /PDS.BG (bus grant), whereas the SE/30 has both a /PDS.BG and a /BG. No idea what impact this would have.

I believe that LC Ethernet cards, given a pinout-remap would directly swap over, They both map into Slotspace $E

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Postby techknight » 21 Dec 2013, 16:07
Well the LC card wont go directly into the SE/30 PDS. the wiring is 110% different, However all the signals appear to be the same. So to make this work, I have to make an adapter PCB with the eurocard connectors on each end, and wiring adaptations.

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