Junkbox CP/M system?

[Allison]

>
>Subject: Re: Junkbox CP/M system?
>   From: "Ensor" <classiccmp at memory-alpha.org.uk>
>   Date: Tue, 24 Apr 2007 05:16:45 +0100
>     To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
>
>Hi,
>
>
>
>  > CF IDE is easy--it's 8 bit. HD IDE uses a 16-bit data path for
>  >sector data transfer....
>
>The original IDE drives used 8-bit transfers (I had one in my first XT), 
>even to this day there is still be a signal on the IDE interface to force 
>the use of 8-bit mode.

It's rarely implemented and its not a "line" it was part of the command set.
The line IO16 is an output that goes high when sector transfers happen.

I have a few XT IDE and of the 4 only one drive (20mb) does 8bit the rest
depend on the ISA bus card to do translation (8-16).

>
>At least one of the IDE interfaces available for 8-bit Atari machines uses 
>the drive in this mode.
>
>
>  TTFN - Pete.

What drive?   YOu can of course use CF that has 8bit mode or just ignore 
the high 8bits (loose half the space) for a simpler interface.

Allison