2 Technical Reference
What This Chapter Contains |
| |
2.1 | Introduction | 37 |
2.2 | Memory Map | 37 |
2.3 | DMA Channels | 38 |
2.4 | Fixed I/O Map | 38 |
2.5 | PCI Configuration Space Map | 39 |
2.6 | Interrupts | 40 |
2.7 | PCI Interrupt Routing Map | 41 |
2.8 | Connectors | 43 |
2.9 | Jumper Blocks | 56 |
2.10 | Mechanical Considerations | 58 |
2.11 | Electrical Considerations | 60 |
2.12 | Thermal Considerations | 61 |
2.13 | Reliability | 63 |
2.14 | Environmental | 64 |
2.1 Introduction
Sections 2.2 - 2.6 contain several standalone tables. Table 10 describes the system memory map, Table 11 lists the DMA channels, Table 12 shows the I/O map, Table 13 defines the PCI configuration space map, and Table 14 describes the interrupts. The remaining sections in this chapter are introduced by text found with their respective section headings.
2.2 Memory Map
Table 10 lists the system memory map.
Table 10. System Memory Map
Address Range (decimal)
1024 K - 2097152 K
960 K - 1024 K
896 K - 960 K
800 K - 896 K
640 K - 800 K
639 K - 640 K
512 K - 639 K
0 K - 512 K
Address Range (hex)
100000 - 7FFFFFFF
F0000 - FFFFF
E0000 - EFFFF
C8000 - DFFFF
A0000 - C7FFF
9FC00 - 9FFFF
80000 - 9FBFF
00000 - 7FFFF
Size
2047 MB
64KB
64KB
96KB
160KB
1KB
127KB
512KB
Description
Extended memory
Runtime BIOS
Reserved
Potential available high DOS memory (open to the PCI bus). Dependent on video adapter used.
Video memory and BIOS
Extended BIOS data (movable by memory manager software)
Extended conventional memory
Conventional memory
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