That's exactly what I was getting at: accessing all legacy devices by referencing their address space causes an LBC bus transaction. Thanks for clearing that up. Like I said I have been doing mostly MIPS and PPC development (The Gods have been kind) and haven't done any PC embedded programming for the past 15 years...
--- Li-Ta Lo ollie@lanl.gov wrote:
On Tue, 2004-03-23 at 10:31, Frank wrote:
Ok, Just to confirm what I think you are saying: If I access I/O port 0x3f8 (COM1) it automagically goes to
the
LPC bus??
It depends on what you mean by "goes to the LPC bus". It will go to the COM1 device "via" the LPC bus. If you want to access other device, you need to access some other magic io ports.
Ollie
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