15 Dec
2010
15 Dec
'10
7:10 p.m.
As you know, I
am mch more of a hardware person, but I have talked ot the
1793 etc disk controllers (and the 279x is much the same as a 179x with
some of the support chips built-in). If oyu have any specific questions I
will see what I can rememebr...
I also have the data sheets for both these chips if you don't have them
I pulled them from Bitsavers (they're in the Storage Products Databook), but thanks for the offer. The WD1010 Winchester
controller appears to
behave a bit like an old-style (CHS-addressed, pre-LBA) IDE hard drive,
just with an 8-bit host data bus instead of 16-bit...
And this is suprising?
Remember the original PC/AT contriller was actually a Western Digital
board, with a WD1010 on it (I have just checked thr board I removed from
this machine when I put an IDE card in). And that IDE was designed to be
software compatible with the original IBM/Western Digital controller,
just with much of the electronics in the drive (hence the name).
-tony