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From: "arizvi" <ahmadwaris AT hotmail DOT com>
Newsgroups: comp.os.msdos.programmer,comp.os.msdos.djgpp
Subject: Re: Creating a copy protected floppy
Date: 13 Jul 2005 11:23:06 -0700
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>
> The NEC chip did/does have a command for reading a track but I think it
> just reads the data within sectors and not the raw bits.  Some
> programming details:
>
> "ClipX - Hardware - nec .pd765 - floppy disk controller - 8272a"
> http://www.clipx.net/ng/hardware/ng96a4.php
>
> "Programming the NEC µPD765 and Intel 82072/7 Floppy Disk Controller"
> http://www.isdaman.com/alsos/hardware/fdc/floppy.htm
>

Thanks for the links above!

The links indicate that the floppy controller can be programmed with an
adjustable bit rate of 500kbps, 300kbps or 250kbps in the Control
Register only for AT and PS/2 computers.  Does the functionality in AT
computers carry over to modern PCs? 

Thanks for the help,
Ahmad