sc1200?

Li-Ta Lo ollie at lanl.gov
Thu Dec 18 11:12:00 CET 2003


On Wed, 2003-12-17 at 23:21, Devi Priya wrote:
> Thanks for ur suggestion.
> My flash is 4 MB. My processor can address up to 4 GB physical address 
> space. That means after power-on, in shematic should I map the flash memory 
> like 0xFFC00000-0xFFFFFFFF and
> 0x00000000-0x003FFFFF? 0r in upper address, is it enough to map the 256KB 
> region to the Flash ie 0xFFFC0000-0xFFFFFFFF? and the lower address to 
> 0x00000000-0x003FFFFF
> 


Are you building your own mainboard ? Usually this mapping stuff
is done by the southbridge or superio chip, you don't and can't
do anything about.

BTW, are you sure your flash is 4MByte instead of 4Mbits ?

Ollie




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