> So have you found out anything more, especially regarding actually emulating the CPU > on the network board?
nothing to spectacular, i've created a standalone driver emulating the comm board only which seems to work until the DMA and/or the DLC controller get involved.
the tech docs i got for the dlc controller have a register map, but some of the bits like protocol selection (PSEL0 to PSEL3) don't have any information on which protocol actuallys get used
a programming manual gets mentioned but I don't have it, so I'm kinda stuck for now.
*EDIT* And I dumped the PAL/GAL on the real board, but I honestly don't think I know how to use them