ADLINK Express-BE - Manual (Page 42)

Page 42 Express-BE
6. System Resources
6.1. System Memory Map
Address Range (decimal) Address Range (hex) Size Description
(4GB-2MB) FFE00000 – FFFFFFFF 2 MB High BIOS Area
(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
640 K – 768 K A0000 – BFFFF 128 KB Video Buffer & SMM space
0 K – 640 K 00000 – 9FFFF 640 KB DOS Area
6.2. Direct Memory Access Channels
Channel Number Data Width System Resource
0 8-bits Generic
1 8-bits Generic
2 8-bits Generic
3 8-bits Generic
4 Reserved - cascade channel
5 16-bits Open
6 16-bits Open