Reverse-engineering WD1000, WD1001 hard disk controllers

[jos]

On 20.11.2016 01:30, Al Kossow wrote:
>
> On 11/19/16 4:25 PM, dwight wrote:
> It is actually a controller for a TRS-80 but it was a WD1000 in disguise.
>
> what format board (5" or 8")? 8X300 or 305?
>
> I dumped and took pictures of a couple different styles which are up on
> bitsavers under westernDigital
Interesting....

The MFM disk controller for later version Lilith's is clearly based on a WD1001-05.
But uses a 8x305 iso 8x300.

Pic of PCB and dump of proms are on    ftp://ftp.dreesen.ch/WD1001/

The disk used is an imi-5018 15MB.

Jos