Resident SIS expert

Frank frannk_m1 at
Tue Mar 23 11:21:01 CET 2004

You just answered my question, I think. So you're saying if I
access i/o port 0x3f8 (com1) or the lpt port the access will be
forworded to the LPC bus?
I thought the LPC was just another bridge on the PCI bus and you
had to setup the I/O and Memory base address regitsters just
like any other PCI bridge device.
Sorry for asking what appears to be a stupid question, but I
come from the MIPS and PPC part of the world. I haven't done any
P.C. programming in 15 years...

--- Li-Ta Lo <ollie at> wrote:
> On Mon, 2004-03-22 at 15:32, Frank wrote:
> > I'm trying to figure out how to reroute i/o amd memory space
> > from the pci space to the LBC Bridge. Anyone out there know
> > which registers to touch in the SSI550. I have the SIS
> register
> > programming but it doesn't describe which registers have to
> be
> > touched to accomplish this.
> > 
> What do you mean by mapping PCI IO/MEM space to LPC bridge ?
> LPC bridge bridges ISA devices which have different address
> space than PCI.
> Ollie

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