Contents

 

Chapter 1 About This Manual

1

Purpose of this Manual

1

Reference Material

1

Related Ampro Products

2

Chapter 2

Product Overview

5

EBX Architecture

5

Product Description

6

Board Features

7

Block Diagram

10

Major Integrated Circuits (ICs)

11

Connector Definitions

12

Additional Components

12

Jumper Definitions

14

LED Definitions

14

Specifications

16

Physical Specifications

16

Mechanical Specifications

17

Power Specifications

19

Environmental Specifications

19

Thermal/Cooling Requirements

19

Chapter 3

Hardware

21

Overview

.......................................................................................................................................

21

CPU (U1)

.......................................................................................................................................

22

Memory

.......................................................................................................................................

22

SDRAM Memory (DIMM1)

22

Flash Memory (U17)

22

Serial EEPROM (SEEP)

22

Interrupt Channel Assignments

23

Memory Map

23

I/O Address Map

24

PC/104-Plus Interface (J21)

25

PC/104 Interface (J1A,B,C,D)

30

IDE Interface (J12, J17)

35

CompactFlash Adapter (J23)

39

Floppy Drive Interface (J14)

41

Parallel Port Interface (J15)

42

Serial Interfaces (J11, J13)

43

Utility Interfaces

47

Utility 1 Interface (J16)

47

Keyboard Interface

47

External Battery

47

Reset Switch

47

PC Speaker

47

Utility 2 Interface (J24)

48

Mouse Interface

48

System Management Bus (SMBus)

48

LittleBoard 550

Reference Manual

iii

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Ampro Corporation Littleboard 550 manual Contents