Gregory's Serverthe unique signals are the card setup line (turns out this is slot 1 and the dock connector is slot 2), the high address bits predecoded, IDE style, and what seems to be a system reset line.
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73 comments
  @tubetime All this is making me miss my old Thinkpad 701 Butterfly. Damn that keyboard design was so neat. the operation won't start until the parallel port is ready--i had to pull the BUSY line low with a jumper, and now i instantly get this error! good luck figuring that one out  @tubetime @tubetime I'd really like the W variant to use external bubble memory just 'coz 1980s Intel. 🙂 But what the heck is it, only thing I can see is a Japan fab variant mentioned here: https://www.cpu-galaxy.at/cpu/Ram%20Rom%20Eprom/Microcontroller/Intel%208X196%20section.htm Even the 8XC196Lx Supplement PDF linked there does not mention it.  @tubetime *takes out a bucket of popcorn*  @tubetime I don’t know why I’m surprised that IBM used MCA in ThinkPads, but it does make sense!  @tubetime Where's the code setting up the DMA channel so the parallel port doesn't read/send data from the weeds? :D @tubetime for a second there I forgot these use the aptly-nicknamed "ThinkPad 700 drive". What a cursed thing it was, DBA-ESDI 2.5". @tubetime My guess would be acquisitions and not caring about all the product lines of the acquired company. Good news is now that TE owns all connector manufacturers*, they won't have this excuse going forward. (*slight exaggeration)  I started archiving catalogs from connector companies just because of that problem. |
the hard disk drive has a weird 60-pin AMP CHAMP connector (5176376-2) but that just gets wired to a 52-pin 2mm header. the pin wiring is 1:1 except for the last 8 pins which are not connected.