idea for a universal disk interface

Chuck Guzis cclist at sydex.com
Wed Apr 13 19:46:48 CDT 2022


I'll only mention that there were ICs that could interface to both
MFM/ST506 hard drives as well as floppies (System/3 MFM).

An example would be the SMC HDC9234, "Universal Disk Controller".
Pretty cool chip for the time; has full 24 bit DMA address capability.

But different register/controller setup than the stock PC AT.

--Chuck


More information about the cctalk mailing list