Express-HLE
Page 43
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-18MB) – (4GB-17MB-1)
FEE00000 – FEEFFFFF
1 MB
MSI Interrupts
(4GB-20MB) – (4GB-19MB-1)
FEC00000 – FECFFFFF
1 MB
APIC Configuration Space
15MB – 16MB
F00000 – FFFFFF
1 MB
ISA Hole
1MB -15MB
100000 - EFFFFF
14MB
Main Memory
0K –1MB
00000 – FFFFFF
1MB
DOS Compatibility Memory
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
Generic
6 16-bits
Generic
7 16-bits
Generic
