Compaq COM Express Extension User Manual

 COM Express™ Extension

 Specification

Rev. 013

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Table of Contents

User Information......................................................................................................................... 5

1.1

About This Document...................................................................................................... 5

1.2

Copyright Notice ............................................................................................................. 5

1.3

Technical Support............................................................................................................ 5

1.4

Disclaimer........................................................................................................................ 5

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

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

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

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

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

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Table of Contents

6.4.2 User editor for default settings....................................................................................... 20

Apendix A: PC Architecture Information.............................................................................. 21

7.1

Buses.............................................................................................................................. 21

7.1.1 ISA, Standard PS/2 – Connectors.................................................................................. 21

7.1.2 PCI 21

7.2

7.3

7.3.1 RS-232 Serial................................................................................................................. 22

7.3.2 Serial ATA..................................................................................................................... 22

7.3.3 USB ............................................................................................................................... 22

7.4

APPENDIX B: DOCUMENT-REVISION HISTORY.......................................................... 24

General PC Architecture................................................................................................ 21

Ports............................................................................................................................... 22

Programming ................................................................................................................. 23

1 User Information

1.1 About This Document

This document provides information about products from Kontron Embedded Modules GmbH, and/or its subsidiaries. No warranty of suitability, purpose, or fitness is implied. While every attempt has been made to ensure that the information in this document is accurate, the information contained within is supplied “as-is” and is subject to change without notice.

For the circuits, descriptions and tables indicated, Kontron assumes no responsibility as far as patents or other rights of third parties are concerned.

1.2 Copyright Notice

Kontron Embedded Modules GmbH and Advantech Co., Ltd. are founding members of the Industrial Group the purpose of which is the definition, marketing and promotion of the COM Technologies.

Kontron Embedded Modules GmbH and Advantech Co., Ltd. Have significantly contributed to the development and promotion of the COM Industrial Standard and administrates the COM Industrial Group’s website (http://www.com-ig.org/).

All rights reserved. No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), without the express written permission of COM Industrial Group founding Members.

COM

1.3 Technical Support

Technicians and engineers from COM Industrial Group Members are available for technical support. We are committed to making our product easy to use and will help you use our products in your systems.

http://www.comexpress-extension.org/members/members.php

Before contacting COM Industrial Group Members technical support, please consult our web site at

http://www.comexpress-extension.org for the latest product documentation, utilities, and drivers. If the

information does not help solve the problem, contact us by email.

http://www.comexpress-extension.org/contact/contact.php

1.4 Disclaimer

Although the information presented in this document was carefully reviewed and is believed to be accurate, it is not guaranteed. The reader assumes all liability for the use of the information herein.

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2 Introduction

2.1 COM Express™ Extension Specification

The COM Express™ Extension Specification builds on the COM Express™ (COM.0) standard as defined by the PCI Industrial Computer Manufacturers’ Group (PICMG®) which is an industry standard adopted for Computer-On-Modules. The COM Express™ Extension Specification is focused with its intellectual properties on the deep embedded market and is intended to be an add-on to the PICMG’s COM Express™ COM.0 Specification. It is the intention of the authors of this specification to propose the information contained here within to PICMG® as a means of updating the current COM Express™ standard to ensure continued saleability and compatibility of all COM Express™ solutions.

2.2 COM Express™ Extension Design Guide

The COM Express™ Design Guide, a separate document from both the PICMG® COM Express™ Specification and this COM Express™ Extension Specification, is available to COM Express™ module customers upon request. For download the COM Express™ Extension Design guide please visit our web page:

http://www.comexpress-extension.com/specs/specs.php

The COM Express™ Design Guide explores the requirements of the COM Express™ Extension Specification and provides recommendations on designing COM Express™ baseboards to support various features of COM Express™ compliant modules.

The COM Express™ Design Guide, based upon the COM Express™ Extension Specification and PICMG® COM Express™ Specification, discusses capabilities in the specification with schematic examples where applicable and offers ideas to consider for maximum flexibility in designing baseboards.

2.3 COM Express™ Computer-On-Module

A COM Express™ Computer-On-Module (COM) is a module with all components necessary for a bootable host computer, packaged as a super component. COMs require a carrier board in order to bring out I/O and to power up the CPU module.

COMs are used to build single board computer solutions and offer OEMs fast time-to-market with reduced development cost.

Like integrated circuits, they provide OEMs with significant freedom when working to meet form-fitfunction requirements. For all of these reasons, COM methodology has gained significant popularity with OEMs in the embedded industry. The COM Express™ standard is designed to be future proof and to provide a smooth transition path from legacy parallel interfaces to LVDS (Low Voltage

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2 Introduction

Differential Signalling) interfaces. These include the PCI bus and parallel ATA on the one hand and PCI Express and Serial ATA on the other hand.

Key features include:

 Rich complement of contemporary high bandwidth serial interfaces, including PCI

Express, Serial ATA, USB 2.0, and Gigabit Ethernet

 32-bit PCI, LPC and Parallel ATA options preserved for easy interface to a range of

peripherals

 Extended power-management capabilities  Robust thermal and mechanical concept

Cost-effective design

 Legacy-free design (no Super I/O, PS2 keyboard or mouse)  COM Express™ module size with two currently defined footprint options (“Basic”

and “Extended”) to satisfy a range of performance requirements. The option for future more compact footprints like microETXexpress and nanoETXexpress are present.

 High-performance mezzanine connector with several defined pin-out types to

satisfy a range of application requirements

The COM Express™ Extension specification has been created to support to a range of vertical embedded markets. It has been formulated to be applicable to a broad range of system types, from floor-installed and bench-top to mobile handheld.

Markets and applications include but are not limited to:

 Healthcare - clinical diagnostic imaging systems, patient bedside monitors, etc.  Retail & advertising - electronic shopping carts, billboards, kiosks, POS/POI

systems, etc.

 Gaming & entertainment - simulators, slot machines, etc.  Test & measurement - scientific and industrial test and measurement instruments  Industrial automation - industrial robots, vision systems, etc.  Security - digital CCTV, luggage scanners, intrusion detectors, etc.  Defence & government - unmanned vehicles, rugged laptops, wearable computers,

etc.

Systems developed according to the COM Express™ Extension Specification require the implementation of an application-specific carrier board that accepts the module. The carrier board is typically a 4- to 8-layer PCB. User-specific features such as external connector choices and locations and peripheral circuits can be tailored to suit the application. The OEM can focus on application-

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2 Introduction

specific features rather than caring for a CPU board design. The OEM also benefits from a wide choice of modules providing a scalable range of price and performance upgrade options.

2.4 Objective

Consistent with the objective of the PICMG® COM Express™ Specification, the COM Express™ Extension specification defines COM Express™ compliant modules at a level of detail sufficient to allow interoperability between independent vendor modules and carrier boards.

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