Luca Calligaris [eMVP] replied to Sandeep
20-Nov-09 04:36 AM
On an x86 architecture you can actually map 512 MB of RAM since you do not
need to waste oemaddress table entries as it happens with most SOC's where
you have to map the integrated peripherals.
On an ARM SOC with 512 MB of RAM and, let us say, 4 MB of integrated
peripherals (serial ports, controllers) you can map only 508 MB of RAM. The
other 4MB can be used anyway with some
effort as explained, for example, in
http://blogs.msdn.com/sloh/archive/2005/05/25/421750.aspx
--
Luca Calligaris (MVP-Windows Embedded)
l.calligaris.nospam@eurotech.it.nospam
www.eurotech.it