I'm looking for the detailed specification of a PROMISE PCI IDE card like
  Promise Ultra100
  Promise Ultra100 TX2

How to set up PIO mode 4 on that PCI IDE cards?
1. Enable PIO mode?
2. Setup timings for PIO mode 4?

Does anyone have this done before?
I need the description of the PCI configuration address space for this
cards, but I couldn't find it.

Thank you!

Guenther