Manual

System Resources 75
NuPRO-E320
Appendix B System Resources
B.1 System Memory Map
Table B-1: System Memory Map
Note: The entire D0000H segment except PXE occupied area can be
forwarded to ISA bus.
Address Range
(decimal)
Address Range
(hex)
Size Description
(4GB-2MB)
FFE00000 –
FFFFFFFF
2 MB High BIOS Area
(4GB-18MB) –
(4GB-17MB-1)
FEE00000 –
FEEFFFFF
1 MB FSB Interrupt Memory Space
(4GB-20MB) –
(4GB-19MB-1)
FEC00000 –
FECFFFFF
1 MB APIC Configuration Space
15MB – 16MB
F00000 –
FFFFFF
1 MB ISA Hole
960 K – 1024 K F0000 – FFFFF 64 KB System BIOS Area
896 K – 960 K E0000 – EFFFF 64 KB Extended System BIOS Area
768 K – 896 K C0000 – DFFFF 128 KB
PCI expansion ROM area
C0000 – C7FFF: Onboard VGA BIOS
CB800 – CC7FFF: Intel 82566DM
PXE option ROM when onboard LAN
boot ROM is enabled.
CC800 – CD7FFF: Marvell 88E805
option ROM when onboard LAN boot
ROM is enabled.
640 K – 768 K A0000 – BFFFF 128 KB Video Buffer & SMM space
0 K – 640 K 00000 – 9FFFF 640 KB DOS Area