Re: Reading non-MFM disks in PC without special controller

From: Hársfalvi Levente (
Date: 2001-11-13 15:09:40


"Baltissen, R (Ruud)" wrote:

> I don't think so. I have seen the card, it is a very small card only
> containing one MACH-44 CPLD IIRC.
> This MACH can provide the needed register to steer the drivemotor,
> direction, head, read/write-mode. The rest of its internals can be used for
> "hacking" the bitstream.

Strange... The doc claims, the card needs no IRQ / DMA. If there's
neither a buffer, nor DMA, then the CPU itself must catch the highspeed
data stream in realtime (byte banging).

Still, the CPLD could hold a small FIFO or whatever... Hell, I don't
care about it. For me it sounds complicated and ISA slots are also
becoming extinct anyway. (Well, right... similarly to 5.25" drives :-(


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