Development, round II

From: Mike Allison <>
Date: Thu Jan 29 20:57:42 1998


I just seem to remember _something_ about the XT286 that made me avoid
it for true 286 stuff. Maybe it was the memory. Most after market AT
boards had room for a meg or two. Maybe it was the 640...


Tony Duell wrote:

> I've not got the XT-286 techref to hand, so I can't look at the
> schematics. But I seem to remember that it's _very_ similar to the PC/AT
> - it's a lot closer to that machine than to the XT. There are 2 DMA
> controllers, 2 interrupt controllers, the 8042 keyboard controller (so it
> takes an AT keyboard), etc. My thoughts when I looked at the schematics
> were that it was a repackaged AT. Of course they could have missed out
> the extra reset logic, but I doubt it.
> It does use a non-standard motherboard, though. The memory is a little
> odd - 128K in DIPs (4 off 64K*4, 2 off 64K*1 for the parrity) and 2 256K
> SIMMs for a total of 640K.
> >
> > I guess....
> >
> > -Mike
> -tony
Received on Thu Jan 29 1998 - 20:57:42 GMT

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