Resident SIS expert

Frank frannk_m1 at
Tue Mar 23 12:08:00 CET 2004

Just to confirm what I think you are saying:
If I access I/O port 0x3f8 (COM1) it automagically goes to the
LPC bus??

--- Li-Ta Lo <ollie at> wrote:
> On Tue, 2004-03-23 at 10:12, Frank wrote:
> > Yes, we signed an NDA and have all of the documentation. But
> the
> > manual is very poorly written and it is ver difficult to
> find
> > anything. I have read the register programming manual a
> hundred
> > times and cannot figure out where you set the BAR registers
> for
> > the LPC bridge.:-(
> > It has registers to set the base address for the ACPI and
> other
> > devices hanging off of the LPC but I cannot find the
> register
> > that say "map this i/o or memory address space and define
> the
> > size of the address space". 
> > I have a feeling they gave us an incomplete manual.:-(
> Believe me, that's the best they can offer ;-). Those LPC
> devices are legacy which have "well know" fixe address.
> Ollie

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