2 technical reference, 1 introduction, 2 memory map – Premio Computer Apollo/Shadowhawk User Manual

Page 70: 2technical reference, What this chapter contains

Advertising
background image

47

2

Technical Reference

What This Chapter Contains

2.1

Introduction................................................................................................................ 47

2.2

Memory Map ............................................................................................................. 47

2.3

I/O Map .................................................................................................................... 48

2.4

DMA Channels .......................................................................................................... 50

2.5

PCI Configuration Space Map ................................................................................... 50

2.6

Interrupts ................................................................................................................... 51

2.7

PCI Interrupt Routing Map ......................................................................................... 51

2.8

Connectors ................................................................................................................ 53

2.9

Jumper Blocks ........................................................................................................... 74

2.10 Mechanical Considerations........................................................................................ 76
2.11 Electrical Considerations ........................................................................................... 80
2.12 Thermal Considerations............................................................................................. 83
2.13 Reliability ................................................................................................................... 85
2.14 Environmental............................................................................................................ 85
2.15 Regulatory Compliance ............................................................................................. 86

2.1 Introduction

Sections 2.2 - 2.6 contain several standalone tables. Table 12 describes the system memory map,
Table 13 shows the I/O map, Table 14 lists the DMA channels, Table 15 defines the PCI
configuration space map, and Table 16 describes the interrupts. The remaining sections in this
chapter are introduced by text found with their respective section headings.

2.2 Memory Map

Table 12.

System Memory Map

Address Range (decimal)

Address Range (hex)

Size

Description

1024 K - 3145728 K

100000 - BFFFFFFF

3071 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 the 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

Advertising