7 system resources, 1 system memory map, 2 direct memory access channels – ADLINK Express-CB User Manual
Page 31: System memory map, Direct memory access channels
Page 31
Express-IA533 User’s Manual
Page 31
Express-IA533 User’s Manual
Express-CB User’s Manual
Page 31
Page 31
Express-CB User’s Manual
7 System Resources
7.1 System Memory Map
Address Range (dec.)
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
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 82577LM
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
7.2 Direct Memory Access Channels
Channel Number
Data Width
System Resource
Comment
0
8-bits
Parallel port
Note (1)
1
8-bits
Parallel port
Note (1)
2
8-bits
Diskette drive
Note (1)
3
8-bits
Parallel port
Note (1)
4
Reserved - cascade channel
5
16-bits
Open
6
16-bits
Open
7
16-bits
Open