Compaq Extension manual Table of Contents

Table of Contents

Table of Contents

1

User Information

5

1.1

About This Document

5

1.2

Copyright Notice

5

1.3

Technical Support

5

1.4

Disclaimer

5

2

Introduction

6

2.1

COM Express™ Extension Specification

6

2.2

COM Express™ Design Guide

6

2.3

COM Express™ Computer-On-Module

6

2.4

Objective

8

3

COM Express™ Module sizes

9

3.1

Overview - Module Size

9

3.1.1

Figure - Overview – three module sizes

10

3.1.2

Small Form Factor nano, COM Express™ Type 1

................................................ 10

Figure 3 – Small Form Factor nano

11

4

Signal Description

12

4.1

Graphic Signal Description

12

4.1.1

Table – Graphic Signal Description - Row C for Pin- out Type 2

................................. 12

4.1.2

Table – Graphic Signal Description - Row D for Pin- out Type 2

................................. 13

5

Hardware extensions

15

5.1

Wide Range Input Power

15

5.1.1

Wide Range Input Power for nano SFF

15

5.2

GPIO General Purpose I/O Recommended Use

16

5.2.1

Alternative GPIO use for SDIO Interface

17

SDIO Pin description

17

5.3

Thermal Control

18

6

Software extensions

19

6.1

TPM support

19

6.2

Smart Battery BIOS support

19

6.3

Legacy Super I/O support in BIOS

20

6.4

CMOS backup in BIOS

20

6.4.1

Console redirection in BIOS

20