Express-SL2
System Resources
41
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
14 MB
Main Memory
0K –1MB
00000 – FFFFFF
1 MB
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
6.3. I/O
Map
Hex Range
Device
20h – 21h
Interrupt Controller
24h – 25h
Interrupt Controller
28h – 29h
Interrupt Controller
2Ch – 2Dh
Interrupt Controller
02E-02F LPC/eSPI
30h – 31h
Interrupt Controller
34h – 35h
Interrupt Controller
38h – 39h
Interrupt Controller
3Ch – 3Dh
Interrupt Controller
040 Timer/Counter
42h – 43h
Timer/Counter
4Eh – 4Fh
LPC/eSPI
50h Timer/Counter
Summary of Contents for Express-SL2
Page 8: ...2 Introduction This page intentionally left blank ...
Page 32: ...26 Pinouts and Signal Descriptions This page intentionally left blank ...
Page 42: ...36 Connector Pinouts on Module This page intentionally left blank ...
Page 46: ...40 Smart Embedded Management Agent SEMA This page intentionally left blank ...
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Page 78: ...72 BIOS Setup This page intentionally left blank ...
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