Why have multiple BARs RE: Programmable BARS

[Lame Brooks-G14738 <brooks.lame@motorola.com>]

In addition to the afore mentioned reasons, you may use separate BARs for
separate buffers for different tasks that are operating simultaneously.
Depending on task completion, access to one BAR might result in a delayed
transaction while access to another may proceed immediately.  -- BrooksL

 
> > If you map these memories in one BAR, the whole allocated 
> memory is still
> > fully under the control of your driver. This has been 
> always the way how we
> > use the BAR in my previous PCI projects. And this is why I do not
> > understand why 6 BARs are available in configuration space. 
> Can anybody
> > lighten me please.