System Resources
79
NuPRO-E330
Appendix B - System Resources
B.1 System Memory Map
Table B-1: System Memory Map
B.2 Direct Memory Access Channels
Table B-2: Direct Memory Access Channels
Note (1):
DMA channel 0/1/3 is selected when using parallel port.
Floppy and parallel port cannot be used at the same time.
Address Range
(decimal)
Address Range
(hex)
Size
Description
(4GB-8MB)
FFE00000 –
FFFFFFFF
8 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
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 82578DM
PXE 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
Channel Number
Data Width
System Resource
0
8-bits
Parallel port
(1)
1
8-bits
Parallel port
(1)
2
8-bits
Diskette drive
(1)
3
8-bits
Parallel port
(1)
4
Reserved - cascade channel
5
16-bits
Open
6
16-bits
Open
7
16-bits
Open
Summary of Contents for NuPRO-E330
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