43
2 Technical Reference
What This Chapter Contains
2.1
Introduction.................................................................................................................43
2.2
Memory Map ..............................................................................................................43
2.3
I/O Map .....................................................................................................................44
2.4
DMA Channels ...........................................................................................................45
2.5
PCI Configuration Space Map ....................................................................................46
2.6
Interrupts ....................................................................................................................46
2.7
PCI Interrupt Routing Map ..........................................................................................47
2.8
Connectors .................................................................................................................48
2.9
Jumper Blocks ............................................................................................................66
2.10
Mechanical Considerations.........................................................................................68
2.11
Electrical Considerations ............................................................................................70
2.12
Thermal Considerations..............................................................................................73
2.13
Reliability ....................................................................................................................74
2.14
Environmental Specifications......................................................................................75
2.15
Regulatory Compliance ..............................................................................................75
2.1 Introduction
Sections 2.2 – 2.6 contain several standalone tables. Table 13 describes the system memory map,
Table 14 shows the I/O map, Table 15 lists the DMA channels, Table 16 defines the PCI
configuration space map, and Table 17 describes the interrupts. The remaining sections in this
chapter are introduced by text found with their respective section headings.
2.2 Memory
Map
Table 13. System Memory Map
Address Range (decimal)
Address Range (hex)
Size
Description
1024 K - 524288 K
100000 - 1FFFFFFF
511 MB
Extended memory
960 K - 1024 K
F0000 - FFFFF
64 KB
Runtime BIOS
896 K - 960 K
E0000 - EFFFF
64 KB
Reserved
800 K - 896 K
C8000 - DFFFF
96 KB
Available high DOS memory (open
to PCI bus)
640 K - 800 K
A0000 - C7FFF
160 KB
Video memory and BIOS
639 K - 640 K
9FC00 - 9FFFF
1 KB
Extended BIOS data (movable by
memory manager software)
512 K - 639 K
80000 - 9FBFF
127 KB
Extended conventional memory
0 K - 512 K
00000 - 7FFFF
512 KB
Conventional memory
