Intel E3815 FH8065301567411 Datenbogen
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Produktcode
FH8065301567411
Mapping Address Spaces
Intel
®
Atom™ Processor E3800 Product Family
70
Datasheet
are accomplished by moving a section DRAM to start at the fixed 4 GB boundary,
leaving a hole below 4 GB for MMIO. This creates the following distinct memory
regions:
leaving a hole below 4 GB for MMIO. This creates the following distinct memory
regions:
•
DOS DRAM + Low DRAM
•
Low MMIO
•
High DRAM
•
High MMIO
There are two registers used to create these regions, BMBOUND and BMBOUND_HI.
Their use is shown in
Their use is shown in
Figure 4.
Physical Address Space - DRAM & MMIO
Low DRAM
High DRAM
DOS DRAM
Low DRAM
DOS DRAM
High MMIO
Low MMIO
4 GB
64 GB
1 MB
Physical Address
Space
DRAM Address
Space
BMBOUND_HI
BMBOUND
High DRAM