basic doubts in PCI

[HEAD/TSD <ecilcmg@hd1.vsnl.net.in>]

hi

here are a few fundamental questions reg PCI.


1) How is the configuration space of the device mapped
to the system memory ? How is IDSEL generated in the
system for the config access ?

2) If three PCI slots are in a system, does each of the
add on board ( with the PCI device ) will have the config
space?

3) How many PCI slots we can provide in a system? Can it
be very much large? If not, what limits the number?

4) How does the software distinguish the addresses of ISA and/or PCI ?

5) Where does PCI memory space mapped into in system memory ?



Srinivas B