ADLINK NuPRO-A40H - Manual (Page 89)

System Resources 75
NuPRO-A40H
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 the parallel port.
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-CE7FF: Onboard VGA BIOS
CE800-D07FF: Intel i211 PXE option ROM
when onboard LAN boot ROM is enabled.
640 K – 768 K A0000 – BFFFF 128 KB Video Buffer & SMM space
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