31 Dec
2010
31 Dec
'10
6:52 p.m.
Fred Jan Kraan wrote:
The original 8 Meg controller emulated the WD1000
chipset even
before it was on the market. So it should look like something familiar
:-).
The original WD1000 chipset (circa 1980) *was* 8X300-based, and was used
in the first WD1000 controller board as sold by WD. The 8X300 didn't
"emulate" anything, as it was a new design. The WD1000-series of
bipolar MSI support chips did the MFM encode, decode, write precomp,
etc., and the 8X300 was the brains of the operation.
It wasn't until several years later that WD introduced the WD1010 VLSI
controller, which emulated the 8X300-based controller.
Eric