Technical Reference; Introduction; Memory Map; System Memory Map - Intel D845GLLY Using Manual

2 Technical Reference

2.1 Introduction

Sections 2.2 - 2.6 contain several standalone tables. Table 14 describes the system memory map,
Table 15 shows the fixed I/O map, Table 16 lists the DMA channels, Table 17 defines the PCI
configuration space map, and Table 18 describes the interrupts. The remaining sections in this
chapter are introduced by text found with their respective section headings.

2.2 Memory Map

Table 14.

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 Description
2047 MB Extended memory
64 KB Runtime BIOS
64 KB Reserved
96 KB Available high DOS memory (open
to the PCI bus)
160 KB Video memory and BIOS
1 KB Extended BIOS data (movable by
memory manager software)
127 KB Extended conventional memory
512 KB Conventional memory
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