PCI bus controller?

David Huseby wrote:

>>Good luck.  It's almost impossible to find these devices in anything
>>but BGA packages, which are not very hobbyist friendly.  I would start
>>with PLX Tech.  (www.plxtech.com).  I think PLX9054 is a Motorola bus
>>to PCI bridge.  Even in non-bga packages they need lots of pins and you
>>get pretty fine pitch QFPs that are also hard to use.
>>    
>>
>
>That's what I was afraid of.  I wish there were more hobby friendly parts
>out there.  I guess that's why so many hobby projects these days are done
>with FPGA's.  You can build an FPGA board and then implement the chip that
>you need.  I think I'll just be satisfied with an IDE interface which I can
>put directly on the ColdFire bus, memory mapped.  That way I could at least
>run uCLinux with ext2 support and have a real file system.
>
>  
>
IDE works fine with the ColdFire. Make sure to access all locations but
DataPort in PIO-0 mode.
Interrupt needs pullup and be positive edge triggered. Otherwise you
will get trouble with some drives.
This can be combined with DMA easily.

For PCI you need a "Host Bridge". This bridge is able to do IDSEL
access. No peripheral bridge
is able to do this.

Regards
Thomas