Datasheet

System Address Map
44 Datasheet
Figure 7. PCI Memory Address Range
DMI Interface
(subtractive decode)
FEF0_0000h
4 GB – 2 MB
FSB Interrupts
FEE0_0000h
PCI Express Configuration
Space
E000_0000h
High BIOS
FFE0_0000h
FFFF_FFFFh
4 GB
4 GB – 17 MB
DMI Interface
(subtractive decode)
FED0_0000h
4 GB – 18 MB
Local (CPU) APIC
FEC8_0000h
4 GB – 19 MB
I/O APIC
FEC0_0000h 4 GB – 20 MB
DMI Interface
(subtractive decode)
F000_0000h
4 GB – 256 MB
Possible address
range/size (not
ensured)
4 GB – 512 MB
DMI Interface
(subtractive decode)
TOLUD
Optional HSEG
FEDA_0000h to
FEDB_FFFFh
BARs and
PCI Express
Port could be
here.