I added PDF datasheets for most of the off-the-shelf chips used in the X68000.
Check it out (http://gamesx.com/wiki/doku.php?id=x68000:generic_chips).
This is so much easier than it was five years ago, when basically none of these PDFs were available online. The only one I couldn't find was the MB89352A SCSI controller from Fujitsu... If anyone's got this file kicking around, please post it here. =D
Hm....
http://msx.retro8bits.com/msxdocs/MB89352.pdf There you go.
It's used for a pretty neat homebrewn made SCSI adapter for the MSX computer:
The MEGA-SCSI.