IDE_PCCARD vs IDE_DIRECT in mpc8xx?

[Wolfgang Denk]

In message <20020606083939.57394.qmail at web15004.mail.bjs.yahoo.com> you wrote:
>
> 	We want to add a ide interface to our system.We find
> there are two ways , direct on pcmcia port and using
> pccard.And we want to need a interface which can use

There are THREE ways. You can also use  an  external  IDE  interface,
independend of the 8xx PCMCIA controller.

Steven Scholz <steven.scholz at imc-berlin.de> has posted  the  hardware
design to this list some time ago.

> Who can tell me which one is better?

This depends on your requirements.

Using a PCCard adapter is nice if you want to  be  able  to  add  and
remove  the  drive;  using a direct interface requires no PCMCIA slot
and no PCCard adapter, so it's much cheaper for mass production.

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
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