Sony BC051022 Quadband GPRS Module User Manual

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User Manual

GS64 GSM/GPRS Modem

Integrators Manual

LZT 123 1836 2

The information contained in this document is the proprietary information of Sony Ericsson

Mobile Communications International. The contents are confidential and any disclosure to

persons other than the officers, employees, agents or subcontractors of the owner or

licensee of this document, without the prior written consent of Sony Ericsson Mobile

Communications International, is strictly prohibited.

Further, no portion of this publication may be reproduced, stored in a retrieval system, or

transmitted in any form or by any means, electronic or mechanical, including photocopying

and recording, without the prior written consent of Sony Ericsson Mobile Communications

International, the copyright holder.

First Edition (March 2006)

Second Edition (May 2006)

Sony Ericsson Mobile Communications International publishes this manual without making

any warranty as to the content contained herein. Further Sony Ericsson Mobile

Communications International reserves the right to make modifications, additions and

deletions to this manual due to typographical errors, inaccurate information, or

improvements to programs and/or equipment at any time and without notice. Such changes

will, nevertheless be incorporated into new editions of this manual.

Publication number: LZT 123 1836

Printed in US

LZT 123 1836 3

Revision History

Edition Change Information

First First Edition

Second Updated FCC marking requirements

Modified description of VREF function

Signal connectivity table updated

Modified description of UART1 signal behavior

LZT 123 1836 4

Contents

Overview....................................................................................................... 9

1 Introduction.......................................................................................... 10

1.1 TARGET USERS.........................................................................................................10

1.2 PREREQUISITES.........................................................................................................10

1.3 MANUAL STRUCTURE ...............................................................................................10

1.4 NOTATION...............................................................................................................11

1.5 ACKNOWLEDGEMENTS .............................................................................................12

2 GS64 WIRELESS MODEM ........................................................................ 13

2.1 ABOUT THE GX64 FAMILY ........................................................................................13

2.2 WIRELESS MODEMS IN A COMMUNICATION SYSTEM..................................................13

2.3 FEATURES ................................................................................................................15

2.3.1 TYPES OF MOBILE STATION ...............................................................................15

2.3.2 SHORT MESSAGE SERVICE..................................................................................16

2.3.3 VOICE CALLS.....................................................................................................16

2.3.4 DATA................................................................................................................16

2.3.5 GPRS MULTI-SLOT SUPPORT.............................................................................. 17

2.3.6 SIM CARD .........................................................................................................17

2.3.7 POWER CONSUMPTION...................................................................................... 17

2.3.8 OPERATING ENVIRONMENT ...............................................................................18

2.3.9 OTHER FEATURES.............................................................................................. 18

2.4 SERVICE AND SUPPORT ............................................................................................19

2.4.1 WEB PAGES .......................................................................................................19

2.4.2 AT COMMANDS MANUAL .................................................................................. 19

2.4.3 M2MPOWER APPLICATION GUIDE.......................................................................20

2.4.4 DEVELOPER’S KIT ..............................................................................................20

2.5 PRECAUTIONS..........................................................................................................20

2.6 GUIDELINES FOR SAFE AND EFFICIENT USE................................................................ 20

2.6.1 GENERAL USAGE ...............................................................................................21

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2.6.2 RADIO FREQUENCY (RF) EXPOSURE AND SAR .....................................................21

2.6.3 PERSONAL MEDICAL DEVICES ............................................................................22

2.6.4 DISPOSAL OF OLD ELECTRONIC EQUIPMENT ......................................................23

2.7 PRODUCT MARKING.................................................................................................23

3 ABBREVIATIONS .................................................................................... 24

Integrating the Wireless Modem.................................................................. 26

4 Mechanical Description ......................................................................... 27

4.1 INTERFACE DESCRIPTION .........................................................................................27

4.2 PHYSICAL DIMENSIONS ............................................................................................29

5 System Connector Interface .................................................................. 30

5.1 OVERVIEW................................................................................................................ 30

5.2 SIGNAL LIST............................................................................................................. 30

5.3 DEALING WITH UNUSED PINS.................................................................................... 34

5.4 GENERAL ELECTRICAL AND LOGICAL CHARACTERISTICS ...........................................35

5.5 GROUNDS ................................................................................................................36

5.5.1 ANALOGUE GROUND (AREF) ..............................................................................36

5.5.2 COMMON GROUND (GND).................................................................................37

5.6 REGULATED POWER SUPPLY INPUT (VCC) ..................................................................38

5.7 VOLTAGE REFERENCE (VREF) ....................................................................................40

5.8 BATTERY CHARGING INPUT (CHG_IN) .......................................................................41

5.8.1 CHARGING PROCESS ......................................................................................... 42

5.8.2 SERIES DIODE.................................................................................................... 43

5.8.3 BATTERY SELECTION .........................................................................................44

5.9 POWERING THE MODULE ON AND OFF (PON_L, PON_H) ............................................47

5.9.1 VREF AS A POWER INDICATOR ...........................................................................47

5.9.2 MODULE ON & OFF SEQUENCE ..........................................................................48

5.9.2.1 POWER ON TIMING ....................................................................................... 49

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5.9.3 TURNING THE MODULE OFF .............................................................................. 50

5.10 ANALOGUE AUDIO................................................................................................ 52

5.10.1 AUXILIARY AUDIO TO MOBILE STATION (AUXIP, AUXIN)......................................53

5.10.2 AUXILIARY AUDIO FROM MOBILE STATION (AUXOP, AUXON) ..............................53

5.10.3 MICROPHONE SIGNALS (MICIP, MICIN) ...............................................................54

5.10.4 SPEAKER SIGNALS (EARP, EARN)......................................................................... 55

5.11 PCM DIGITAL AUDIO (SSP).....................................................................................55

5.11.1 PCM DATA FORMAT .......................................................................................... 55

5.12 SERIAL DATA INTERFACES.....................................................................................57

5.12.1 UART1 ..............................................................................................................57

5.12.2 SERIAL DATA SIGNALS (DTM1, DFM1)................................................................58

5.12.2.1 SERIAL DATA FROM WIRELESS MODEM (DFM1) ...............................................58

5.12.2.2 SERIAL DATA TO WIRELESS MODEM (DTM1)....................................................59

5.12.3 CONTROL SIGNALS (RTS1, CTS1, DTR1, DSR1, DCD1, RI)................................... 59

5.12.3.1 HARDWARE FLOW CONTROL RTS1 AND CTS1.................................................59

5.12.3.2 REQUEST TO SEND (RTS1).............................................................................. 59

5.12.3.3 CLEAR TO SEND (CTS1).................................................................................. 59

5.12.3.4 DATA TERMINAL READY (DTR1) .....................................................................60

5.12.3.5 DATA SET READY (DSR1) ...............................................................................60

5.12.3.6 DATA CARRIER DETECT (DCD1) .....................................................................60

5.12.3.7 RING INDICATOR (RI) ..................................................................................... 60

5.12.4 UART2 (DTM2, DFM2) ....................................................................................... 61

5.12.4.1 TRANSMITTED DATA (DTM2) .........................................................................61

5.12.4.2 RECEIVED DATA (DFM2)................................................................................. 61

5.12.4.3 REQUEST TO SEND (RTS2).............................................................................. 61

5.12.4.4 CLEAR TO SEND (CTS2).................................................................................. 61

5.12.5 USB...................................................................................................................62

5.12.6 SIM CARD INTERFACE........................................................................................63

5.12.7 SIM DETECTION (SIMDET)..................................................................................64

5.13 SYNCHRONOUS SERIAL PORT (SSP) INTERFACE [TO BE IMPLEMENTED IN A FUTURE RELEASE] 64

5.14 MEMORY CARD INTERFACE (SD/MMC) [TO BE IMPLEMENTED IN A FUTURE RELEASE] ..... 65

5.14.1 MULTIMEDIA CARD SYSTEM...............................................................................65

5.14.2 SECURE DIGITAL MEMORY CARD SYSTEM........................................................... 66

5.15 SERVICE/PROGRAMMING ......................................................................................67

5.16 LED [TO BE IMPLEMENTED IN A FUTURE RELEASE] ...............................................................67

5.17 GENERAL PURPOSE IO ...........................................................................................69

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5.17.1 EMBEDDED APPLICATIONS................................................................................. 70

5.18 KEYBOARD SIGNALS (KEYROW, KEYCOL)................................................................ 72

5.19 ANALOGUE TO DIGITAL CONVERTERS (ADIN1, ADIN2, ADIN3, ADIN4) ...................72

5.20 BURST TRANSMISSION (TX_ON).............................................................................74

5.21 REAL TIME CLOCK ................................................................................................74

5.21.1 REAL TIME CLOCK BACKUP SUPPLY (VRTC).........................................................75

5.21.2 RTC ALARM (ALARM)......................................................................................... 76

5.21.2.1 ALARM OUTPUT FROM THE MODULE.............................................................. 76

5.21.3 ALARM UTILIZATION AS A WAKE-UP.................................................................. 77

5.22 RINGER OUTPUT (BUZZER) [TO BE IMPLEMENTED IN A FUTURE RELEASE]..............................78

6 Antenna Connector ............................................................................... 79

7 Hints for Integrating the Wireless Modem ............................................. 80

7.1 SAFETY ADVICE AND PRECAUTIONS .........................................................................80

7.1.1 GENERAL ..........................................................................................................80

7.2 SIM CARD ................................................................................................................81

7.3 ANTENNA ................................................................................................................81

7.4 INSTALLATION OF THE WIRELESS MODEM................................................................. 82

7.4.1 WHERE TO INSTALL THE WIRELESS MODEM ........................................................82

7.4.1.1 ENVIRONMENTAL CONDITIONS ...................................................................... 82

7.4.1.2 SIGNAL STRENGTH ........................................................................................83

7.4.1.3 CONNECTION OF COMPONENTS TO WIRELESS MODEM................................... 83

7.4.1.4 NETWORK AND SUBSCRIPTION.......................................................................83

7.4.2 HOW TO INSTALL THE WIRELESS MODEM ...........................................................84

7.4.2.1 POWER SUPPLY ..............................................................................................84

7.4.2.2 GROUNDS......................................................................................................84

7.4.2.3 AUDIO........................................................................................................... 84

7.4.2.4 SOFTWARE UPGRADE .....................................................................................85

7.5 ANTENNA ................................................................................................................85

7.5.1 GENERAL ..........................................................................................................85

7.5.2 ANTENNA TYPE.................................................................................................85

7.5.3 ANTENNA PLACEMENT ...................................................................................... 86

7.5.4 THE ANTENNA CABLE........................................................................................ 86

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7.5.5 POSSIBLE COMMUNICATION DISTURBANCES ......................................................87

8 Embedded Applications ........................................................................ 88

8.1 FEATURES ................................................................................................................88

8.2 IMPLEMENTATION.................................................................................................... 88

8.2.1 LIMITATIONS.....................................................................................................88

8.2.2 M2MPOWER IDE (INTEGRATED DEVELOPMENT ENVIRONMENT) ........................... 89

9 TCP/IP Stack ......................................................................................... 90

9.1 IMPLEMENTATION.................................................................................................... 90

10 Technical Data ................................................................................... 91

10.1 MECHANICAL SPECIFICATIONS.............................................................................. 91

10.2 POWER SUPPLY VOLTAGE, NORMAL OPERATION....................................................92

10.3 RADIO SPECIFICATIONS ........................................................................................ 92

10.4 SIM CARD............................................................................................................. 92

10.5 ENVIRONMENTAL SPECIFICATION..........................................................................93

11 Regulatory Notices ............................................................................. 95

12 Introduction to the Universal Developer’s Kit ..................................... 97

LZT 123 1836 9

Overview

LZT 123 1836 10

1 Introduction

1.1 Target Users

The GS64 wireless modems are designed to be integrated into machine-to-machine

or man-to-machine communications applications.

They are intended to be used by manufacturers, system integrators, applications

developers and developers of wireless communications equipment.

1.2 Prerequisites

It is assumed that the person integrating the wireless modem into an application has

a basic understanding of the following:

• GSM networking;

• Wireless communication and antennas (aerials)

• AT commands

• ITU-T standard V.24/V.28

• Micro controllers and programming

• Electronic hardware design

1.3 Manual Structure

The manual is composed of three parts:

Part 1- Overview

This section provides a broad overview of the Gx64 family and includes a list of

abbreviations used in the manual.

Part 2 - Integrating the Wireless modem

This section describes each of the signals available on the GS64 wireless modem,

along with mechanical information. The section also provides you with design

guidelines and what is needed to commercialize an application from a regulatory

point of view.

LZT 123 1836 11

Part 3 – Developer’s Kit

This section lists the contents of the Developer’s Kit and provides the information to

setup and use the equipment.

1.4 Notation

The following symbols and admonition notation are used to draw the readers

attention to notable, or crucially-important information.

Note

Draws the readers attention to pertinent, useful or interesting

information

Tip

Provides advice, suggestions, guidance or recommendations which

augment the formal text

Caution

Cautionary information must be heeded, it draws the readers attention

to the need for understanding, care or watchfulness in relation to the

information provided

Warning

Notes marked warning must be heeded, they alert readers to

precautionary measures, risks, hazards or safety information which

directly effects equipment function, warranty or personnel safety

Danger

This information must be heeded, it identifies information and

cautionary behavior that otherwise ignored could result in catastrophic

equipment failure, bodily injury or death

TIP

CAUTION

WARNING

DANGE

NOTE

LZT 123 1836 12

1.5 Acknowledgements

Parts of this document, including text passages, tables and illustrations, are

reproduced from copyright information by kind permission of Agere Systems Inc.

LZT 123 1836 13

2 GS64 WIRELESS MODEM

2.1 About the Gx64 Family

The Sony Ericsson Gx64 family of devices are Quad Band GSM/GPRS wireless modems

operating in the GSM 850/900/1800/1900 bands.

The products belong to a new generation of Sony Ericsson wireless modems, and are

intended to be used in machine-to-machine applications and man-to-machine

applications. They are used when there is a need to send and receive data (by SMS,

CSD, or GPRS), and make voice calls over the GSM network.

Two software variants of the Gx64 devices exist. One variant is designed to be

controlled from a micro-controller situated on the host application. The other variant

offers the option to run applications embedded onto the module itself. When using

the embedded application version the controlling script can be run internal to the

module, with or without the use of an external control.

A typical application, involves a micro-controller and a wireless modem, in which the

micro-controller sends AT commands to the wireless modem via an RS232

communications link.

2.2 Wireless modems in a Communication System

Figure

2.2-1 and

Figure

2.2-2 illustrate the main blocks of a wireless communication

system using the wireless modem.

Figure

2.2-1 shows the communication system

when the script is embedded on the wireless modem and

Figure

2.2-2 shows the

communication system when a micro-controller is used. They also show the

communication principles of the system and the interface between the wireless

modem and the application. The definitions in the figures, as used elsewhere in this

manual, are in accordance with the recommendations of 3GPP TS 27.007.

The MS (mobile station) represents the wireless modem and SIM card. The wireless

modem excluding SIM card, is known as the ME (mobile equipment).

The DTE (data terminal equipment) is the controlling application. This can be either

an external host or an internal embedded application

The DCE (data circuit terminating equipment) is the serial communication interface of

the MS.

LZT 123 1836 14

SIM

GSM

ENGINE

GSM

ENGINE

DCE

DCE DTE

DTE

SYSTEM INTERFACE

POWER

STATUS &

RESPONSE

COMMAND

& CONTROL

EMBEDDED

APPLICATION

GSM

NETWORK

SIM

GSM

ENGINE

GSM

ENGINE

DCE

DCE DTE

DTE

SYSTEM INTERFACE

POWER

STATUS &

RESPONSE

COMMAND

& CONTROL

EMBEDDED

APPLICATION

GSM

NETWORK

Figure 2.2-1 Main Blocks in a Wireless System (embedded application)

SIM

GSM

ENGINE

GSM

ENGINE

DCE

DTE

SYSTEM INTERFACE

STATUS &

RESPONSE

COMMAND

& CONTROL

GSM

NETWORK

POWER

GR64

SIM

GSM

ENGINE

GSM

ENGINE

DCE

DTE

SYSTEM INTERFACE

STATUS &

RESPONSE

COMMAND

& CONTROL

GSM

NETWORK

POWER

GR64

Figure 2.2-2 Main Blocks in a Wireless System (external micro-controller)

LZT 123 1836 15

In accordance with the recommendations of ITU-T (International Telecommunication

Union - Telecommunications Standardization Sector) V.24, the TE communicates with

the MS over a serial interface.

The functions of the wireless modem follow the recommendations provided by 3GPP

(3rd Generation Partnership Project) and ITU-T. 3GPP is a collaboration agreement

that was established in December 1998. The collaboration agreement brings

together a number of telecommunications standards bodies which are known as

Organizational Partners

. The current Organizational Partners are ARIB, CCSA, ETSI,

ATIS, TTA, and TTC.

3GPP specifies a set of AT commands for controlling the GSM element of the wireless

modem; these commands are supplemented by Sony Ericsson specific commands.

To find out how to work with AT commands, see the AT Commands Manual.

2.3 Features

The wireless modem performs a set of telecom services (TS) according to 3GPP

release 99 and ITU-T. The functions of the wireless modem are implemented by

issuing AT commands over a serial interface.

2.3.1 Types of Mobile Station

The GS64 is a fully Quad Band capable GSM/GPRS mobile station with the

characteristics shown in the table below.

Feature GSM850 E-GSM900 GSM1800 GSM1900

Tx 824-849 880-915 1710-1785 1850-1910

Frequency range (MHz)

Rx 869-894 925-960 1805-1880 1930-1990

Channel spacing 200kHz 200kHz 200kHz 200kHz

Number of channels 124 174 374 299

Number of Time Division slots 8 8 8 8

Duplex spacing 45MHz 45MHz 95MHz 80MHz

GSM power class 4 (2W) 4 (2W) 1 (1W) 1 (1W)

Modulation GMSK

Receive sensitivity <-102dBm at antenna connector

GPRS multi-slot class Class 10

LZT 123 1836 16

2.3.2 Short Message Service

The wireless modem supports the following SMS services:

Sending; MO (mobile-originated) with both PDU (protocol data unit) and text mode

supported

Receiving; MT (mobile-terminated) with both PDU and text mode supported

CBM (cell broadcast message); a service in which a message is sent to all subscribers

located in one or more specific cells in the GSM network (for example, traffic reports)

SMS status report according to 3GPP TS 23.40

The maximum length of a text mode SMS message is 160 characters using 7-bit

encoding. The wireless modem supports up to six concatenated messages to extend

this function. Concatenation is performed by the host application.

2.3.3 Voice Calls

The wireless modem offers the capability of MO (mobile originated) and MT (mobile

terminated) voice calls, as well as supporting emergency calls. Multi-party, call

waiting and call divert features are available. Some of these features are network-

operator specific.

For the inter-connection of audio, the wireless modem offers both single ended and

balanced analogue input and output lines. Direct interface to the digital PCM (pulse

code modulation) bus used within the wireless modem is available, thus by-passing

the internal analogue circuitry. The wireless modems support HR, FR, EFR and AMR

vocoders.

2.3.4 Data

The wireless modem supports the following data protocols:

GPRS (General Packet Radio Service)

The wireless modem is a Class B terminal. The wireless modem is GPRS multislot

class10 enabled, capable of receiving at a maximum of four timeslots per frame

(down link), and transmitting in two timeslots per frame (up link). See section 2.3.5

for multi-slot allocation by class.

LZT 123 1836 17

CSD (Circuit Switched Data)

The GS64 wireless modem is capable of establishing a CSD communication at 9.6

kbps over the air.

2.3.5 GPRS Multi-Slot Support

GSM Multi-slot classes supported by Gx64 devices

Maximum slot allocation

Multislot

Class Downlink Uplink Active

Allowable

Configuration Max data rate

8 4 1 5 1 up; 4 down

8-12Kbps Send

32-48Kbps Receive

1 up; 4 down 8-12Kbps Send

32-48Kbps Receive

10 4 2 5

2 up; 3 down 16-24Kbps Send

24-36Kbps Receive

2.3.6 SIM Card

The GS64 supports an external SIM card through its system connector. Both 3V and

1.8V SIM technology is supported. Older, 5V SIM technology is not supported.

A mechanical variant of the GS64 also supports an on-card SIM. For dual SIM

support, automated SIM-switching is available. Only one SIM is active at any one

time, it is not possible to concurrently register on more than one network.

2.3.7 Power Consumption

Feature Sleep Mode

DRX 8 Idle Mode Transmit

Operation

Voice/CSD

GSM850 & E-GSM900

Data (GPRS)

1.6 mA 17 mA 2000 mA

Voice/CSD

GSM1800 & GSM1900

Data (GPRS)

1.6 mA 16 mA 1450 mA

LZT 123 1836 18

The power consumption figures shown represent average current for maximum

transmitted power, single uplink (transmit) slot, single downlink (receive) slot. The

module will consume more average power in different multi-slot configurations, the

worst case being that of two uplink and three downlink slots.

2.3.8 Operating Environment

Parameter Min Max Units

Operating Temperature -30 +75 °C

Humidity 95 %RH

Storage Temperature -40 +85 °C

For complete details of the environmental specification please refer to Para. 10.5.

2.3.9 Other Features

The GS64 supports many other features, including :

• multiplexing in accordance with 3GPP TS 27.010

• GPS interoperability

• SIM application tool kit, class 2 release 99 compliant

• On board TCP/IP stack

• In addition, customers have the option of a GS64 software variant which adds

embedded application functionality.

LZT 123 1836 19

2.4 Service and Support

2.4.1 Web Pages

Visit the Sony Ericsson M2M extranet web site for the following information:

where to buy wireless modems or for recommendations concerning accessories and

components

local contact details for customer support in your region

FAQs (frequently asked questions)

documentation related to integrating the module, including application notes, design

guides and AT command manuals

Access to the Sony Ericsson extranet site requires a user account and password.

Accounts can be arranged through your local account manager.

The extranet web site address is:

https://extranet.sonyericsson.com/collaborationarea/m2m/default.aspx

2.4.2 AT Commands Manual

The AT Commands Manual provides users with all the AT commands that can be used

with the wireless modem. AT commands appear in logical groups and contain the

command, a description of its functionality and an example of use.

LZT 123 1836 20

2.4.3 M2mpower Application Guide

The M2mpower Application Guide provides users with all the information they need

to build an application using the M2mpower support environment. This manual is

supplied as part of the M2mpower package.

2.4.4 Developer’s Kit

Sony Ericsson provides the developer’s kit to get you started quickly. The kit includes

the necessary hardware required to begin the development of an application. It

includes the following:

This Integrator’s Manual

Developer’s kit hardware

Developer’s kit accessories

Power supply

RS232 cable

Headset

Antenna

User need to order the M2M module(s) of their choice, and provide a computer or

micro-controller. The AT command manual provides the necessary command and

control reference to drive the module.

2.5 Precautions

The wireless modems are ESD protected up to ±2kV on all pins other than the SIM

interface. The SIM interface is protected up to ±15kV. Integrators must follow

electronic device handling precautions when working with any electronic device

system to ensure no damage occurs to the host or the wireless modem. In the section

‘Integrating the Wireless modem’, users will find more information about safety and

product care. Do not exceed the environmental and electrical limits as specified in

‘Technical Data’ section.

2.6 Guidelines for Safe and Efficient Use

Users must follow the general usage outlined in this chapter before using the GS64

for any purpose.

LZT 123 1836 21

2.6.1 General Usage

Always treat the product with care and keep it in a clean and dust-free place

Do not expose the product to liquid

Avoid exposing the product to moisture or high humidity environments

Do not expose the product to extreme high or low temperatures beyond those

specified for operation and storage

Do not expose the product to open flames or lit tobacco products

Do not drop, throw or try to bend the product

Do not paint the product

Do not use the product near medical equipment without requesting permission

Do not use the product when in, or around aircraft, or areas posted “turn off two-way

radio”

Do not use the product in an area where a potentially explosive atmosphere exists

Do not place the product or install wireless equipment in the area above a vehicle’s

air bag

Do not attempt to disassemble the product; only Sony Ericsson authorized personnel

should perform servicing

2.6.2 Radio Frequency (RF) exposure and SAR

Your wireless modem device is a low-power radio transmitter and receiver

(transceiver). When it is turned on, it emits low levels of radio frequency energy (also

known as radio waves or radio frequency fields).

LZT 123 1836 22

Governments around the world have adopted comprehensive international safety

guidelines, developed by scientific organizations, e.g. ICNIRP (International

Commission on Non-Ionizing Radiation Protection) and IEEE (The Institute of Electrical

and Electronics Engineers Inc.), through periodic and thorough evaluation of scientific

studies. These guidelines establish permitted levels of radio wave exposure for the

general population. The levels include a safety margin designed to assure the safety

of all persons, regardless of age and health, and to account for any variations in

measurements.

Specific Absorption Rate (SAR) is the unit of measurement for the amount of radio

frequency energy absorbed by the body when using a transceiver. The SAR value is

determined at the highest certified power level in laboratory conditions, but the

actual SAR level of the transceiver while operating can be well below this value. This is

because the transceiver is designed to use the minimum power required to reach the

network.

The GS64 wireless modem device has been approved for applications where the

antenna is located >20cm from the body. In all other configurations the integrator is

responsible for meeting the local SAR regulations.

Integrators of the GS64 wireless modem device are responsible for ensuring that they

meet the SAR regulatory requirements of the countries in which they intend to

operate the device, and that their documentation contains the relevant SAR

declaration, certification information, and user guidance as appropriate.

More information on radio frequency exposure and SAR can be found at

www.sonyericsson.com.

2.6.3 Personal Medical Devices

Wireless modem devices may affect the operation of cardiac pacemakers, hearing aids

and certain other implanted equipment. If a minimum distance of 15 cm (6 inches) is

maintained between the GS64 module’s radiating antenna and a pacemaker, the risk

of interference is limited. If the integrator’s application is likely to be situated in the

vicinity of personnel, a suitable warning should be contained in the equipment

manual to this effect.

LZT 123 1836 23

2.6.4 Disposal of Old Electronic Equipment

This symbol on the product or on its packaging indicates that this product shall not

be treated as household waste. Instead it shall be handed over to an appropriate

collection point for the recycling of electrical and electronic equipment. By ensuring

this product is disposed of correctly, you will help prevent potential negative

consequences for the environment and human health, which could otherwise be

caused by inappropriate waste handling of this product. The recycling of materials

will help to conserve natural resources. For more detailed information about recycling

of this product, please contact your local city office, your household waste disposal

service or the Sony Ericsson regional sales office.

2.7 Product Marking

Your attention is drawn to the Regulatory Notices contained in Section 11, specifically

the paragraph pertaining to the FCC marking requirements for devices in which the

GS64 is installed. Any device that integrates the GS64, which is subject to FCC

regulatory approval, must have an exterior label identifying the GR64 FCC ID number.

LZT 123 1836 24

3 ABBREVIATIONS

Abbreviation Explanation

ADC Analogue to Digital Converter

AMR Adaptive Multi Rate

ATMS Audio to Mobile Station

AFMS Audio from Mobile Station

CBM Cell Broadcast Message

CBS Cell Broadcast Service

CSD Circuit Switched Data

DCE Data Circuit Terminating Equipment

DK Developer’s Kit

DTE Data Terminal Equipment

DTMF Dual Tone Multi Frequency

EA Embedded Application

EFR Enhanced Full Rate

EMC Electro-Magnetic Compatibility

ETSI European Telecommunication Standards Institute

FR Full Rate

GPRS General Packet Radio Service

GPS Global Positioning System

GSM Global System for Mobile Communication

HR Half Rate

IDE Integrated Development Environment

IP Internet Protocol

ITU-T International Telecommunication Union –

Telecommunications (Standardisation Sector)

LDO Low Drop Out (voltage regulator)

M2mpower Sony Ericsson’s powerful support environment

ME Mobile Equipment

MMCX Micro Miniature Coax

MO Mobile Originated

LZT 123 1836 25

Abbreviation Explanation

MS Mobile Station

MT Mobile Terminated

PCM Pulse Code Modulation

PDU Protocol Data Unit

RF Radio Frequency

RFU Reserved for Future Use

RLP Radio Link Protocol

RTC Real Time Clock

SDP Service Discovery Protocol

SIM Subscriber Identity Module

SMS Short Message Service

TCP Transport Control Protocol

UDP User Datagram Protocol

LZT 123 1836 26

Integrating the Wireless

Modem

LZT 123 1836 27

4 Mechanical Description

4.1 Interface Description

The pictures below show the mechanical design of the wireless modem along with the

positions of the different connectors and mounting holes. The wireless modem is

protected with tin coated steel ASI 1008/1010 covers that meet the environmental

and EMC requirements.

system connector wireless modem

shielded circuits

antenna

connector

system connector wireless modem

shielded circuits

antenna

connector

Figure 4.1-1 Wireless modem viewed from below

integrated SIM holder

solder tab

integrated SIM holder

solder tab

integrated SIM holder

solder tab

Figure 4.1-2 Wireless modem, viewed from above (Integrated SIM holder version)

LZT 123 1836 28

Please note the following:

Keypad, display, microphone, speaker and battery are not part of the wireless modem

For the GS64 variant without an integrated SIM holder, the SIM card is mounted in the

user application, external to the wireless modem (this is also an option for the

integrated SIM holder variant)

The GS64 variant without an integrated SIM holder has no components mounted on

the top-side

The System Connector is a 100-pin, narrow (0.5 mm) pitch type designed for board-

to-board mating. The pins and their electrical characteristics are described in Section

5, together with the System Connector Interface.

Information about the Antenna Connector is found in Section 6.

Antenna Connector details are found in Section 6.

LZT 123 1836 29

4.2 Physical Dimensions

Figure 4.2-1 Dimensions of the Wireless modem (Integrated SIM variant)

Measurements are given in millimeters. See also Technical Data, in Section 10 .

LZT 123 1836 30

5 System Connector Interface

5.1 Overview

Electrical connections to the wireless modem (except the antenna), are made through

the System Connector Interface. The system connector is a 100-pin, narrow (0.5 mm)

pitch device designed for board-to-board connectivity.

Figure 5.1-1 below shows the numbering of the connector pins.

Pin 100

Pin 99

Pin 2

Pin 1

Pin 100

Pin 99

Pin 2

Pin 1

Figure 5.1-1 Wireless modem, viewed from underneath

A mating (host circuit board) connector can be obtained from Panasonic

by ordering the following part

100 PIN SOCKET AXK5F00547YG

5.2 Signal List

The following table gives the pin assignments for the system connector interface and

a short description for each signal.

TIP

LZT 123 1836 31

Table 5.2-1 Pin Assignments

Pin Name Direction Function

Connection

Required

1 GND - Ground Yes

2 VCC Input DC power Yes

3 GND - Ground Yes

4 VCC Input DC power Yes

5 GND - Ground Yes

6 VCC Input DC power Yes

7 GND - Ground Yes

8 VCC Input DC power Yes

9 GND - Ground Yes

10 VCC Input DC power Yes

11 GND - Ground Yes

12 VCC Input DC power Yes

13 CHG_IN Input Battery charger power

14 SIMVCC Output 1.8V or 3.0V SIM card supply Yes1

15 SIMRST Output SIM card reset signal Yes1

16 SIMCLK Output SIM card clock signal Yes1

17 SIMDAT In/Out SIM card data Yes1

18 SIMDET Input SIM presence detection Yes1

19 Reserved - -

20 SERVICE Input Flash programming enable signal

21 PON_H Input Device on control Yes2

22 Reserved - -

23 Reserved - -

24 Reserved - -

25 Reserved - -

26 Reserved - -

27 ADIN1 Input ADC Input 1

28 ADIN2 Input ADC Input 2

29 ADIN3 Input ADC Input 3

30 ADIN4 Input ADC Input 4

31 VRTC Input DC supply for real time clock

32 ALARM Output RTC alarm

LZT 123 1836 32

Pin Name Direction Function

Connection

Required

33 PON_L Input Device on/off control Yes2

34 VUSB Output USB DC power Yes3

35 USBDP In/Out USB data positive Yes3

36 USBDN In/Out USB data negative Yes3

37 LED1 Output LED control

38 LED2 Output LED control

39 TX_ON Output Transmit indication

40 GPIO1 In/Out General purpose IO

41 GPIO2 In/Out General purpose IO

42 Reserved - -

43 GPIO3 In/Out General purpose IO

44 GPIO4 In/Out General purpose IO

45 GPIO5 In/Out General purpose IO

46 Reserved - -

47 Reserved - -

48 GPIO6 In/Out General purpose IO

49 GPIO7 In/Out General purpose IO

50 GPIO8 In/Out General purpose IO

51 GPIO9 In/Out General purpose IO

52 BUZZER Output Buzzer Output

53 RI Output Ring Indicator

54 DCD1 Output Data Carrier Detect (UART1)

55 DTR1 Input Data Terminal Ready (UART1) Yes5

56 DSR1 Output Data Set Ready (UART1) Yes5

57 RTS1 Input Ready To Send (UART1) Yes5

58 CTS1 Output Clear To Send (UART1) Yes5

59 DTM1 Input Data To Module from host (UART1) Yes4

60 DFM1 Output Data From Module to host (UART1) Yes4

61 RTS2 Input Ready To Send (UART2)

62 CTS2 Output Clear To Send (UART2)

63 DTM2 Input Data To Module from host (UART2)

64 DFM2 Output Data From Module to host (UART2)

65 VREF Output Core voltage reference Yes

66 PCMCLK In/Out Serial PCM clock

67 PCMFS In/Out Serial PCM frame synchronization

68 PCMDTM Input Serial PCM data to module from host

LZT 123 1836 33

Pin Name Direction Function

Connection

Required

69 PCMDFM Output Serial PCM data from module to host

70 SSPCLK In/Out SPI clock

71 SSPFS In/Out SPI frame synchronization

72 SSPDTM Input SPI data to module from host

73 SSPDFM Output SPI data to host from module

74 MMCCLK Output SD/MMC card clock

75 MMCCMD In/Out SD/MMC card command/response

76 MMCDAT0 In/Out SD/MMC card data 0

77 MMCDAT1 In/Out SD/MMC card data 1

78 MMCDAT2 In/Out SD/MMC card data 2

79 MMCDAT3 In/Out SD/MMC card data 3

80 MMCMD_EN Output SD/MMC card command enable

81 MMCDAT_EN Output SD/MMC card data enable (data 1-3)

82 MMCDAT_EN0 Output SD/MMC card data enable (data 0)

83 KEYROW1 Input

Keyboard row 1

84 KEYROW2 Input

Keyboard row 2

85 KEYROW3 Input

Keyboard row 3

86 KEYROW4 Input

Keyboard row 4

87 KEYROW5 Input

Keyboard row 5

88 KEYCOL1 Output Keyboard row 1

89 KEYCOL2 Output Keyboard row 2

90 KEYCOL3 Output Keyboard row 3

91 KEYCOL4 Output Keyboard row 4

92 AUXIP Input Aux audio to module from host (pos)

93 AUXIN Input Aux audio to module from host (neg)

94 AUXOP Output Aux audio from module to host (pos)

95 AUXON Output Aux audio from module to host (neg)

96 AREF - Analogue reference

97 MICIP Input Microphone input positive

98 MICIN Input Microphone input negative

99 EARP Output Earpiece output positive

100 EARN Output Earpiece output negative

LZT 123 1836 34

1 - These signals are required if the external SIM interface is used

2 - At least one of these interfaces is required to be connected

3, 4 - At least one of these interfaces is required to be connected

5 - These pin connections are required for sleep mode operation

5.3 Dealing with Unused pins

Integrators applications may connect all of the GS64 signals pins, or just those

necessary for minimal operation, or most commonly some other permutation. If

GR64 signal pins are not connected to the host application you should terminate

them in the following manner.

Table 5.3-1 Unused Pin Termination

Pin Name Unused pins

1, 3, 5, 7, 9, 11 GND Must be connected

2, 4, 6, 8, 10,12 VCC Must be connected

27 ADIN1 Ground

28 ADIN2 Ground

29 ADIN3 Ground

30 ADIN4 Ground

65 VREF Must be connected

92 AUXIP Connect to AREF

93 AUXIN Connect to AREF

97 MICIP Connect to AREF

98 MICIN Connect to AREF

All other signal pin may be left open (un-terminated)

NOTE

LZT 123 1836 35

5.4 General Electrical and Logical Characteristics

The electrical characteristics in this document refer to the behavior of the device

under specified conditions. Electrical requirements refer to conditions imposed on the

user for proper operation of the device.

All IO to and from the GS64 is 1.8V unless otherwise stated. For user applications

employing other logic voltage technology it may be necessary to implement level

translators on the host-side circuitry in order to achieve level compatibility. To

facilitate ease of level conversion the GS64 provides a 1.8V reference on the VREF pin.

The VREF voltage from which all 1.8V logic is derived is covered in section 5.7

All input buffers are of the same type and they offer hysteresis of 200 mV—380 mV

The electrical characteristics for 1.8V IO signals are shown in Table 5.4-1

Table 5.4-1 1.8V IO Characteristics

Parameter Min Typ Max Unit

Input Voltage Low (VIL) –0.3 0.45 V

Input Voltage High (VIH) 1.16 VREF+0.3 V

Input Current (no pull-up) Low (VIL) 1.0 µA

Input Current (no pull-up) High (VIH) 1.0 µA

Output Low Voltage, 2 mA (VOL) 0.25 x VREF V

Output High Voltage, –2 mA (VOH) 0.75 x VREF V

Output 3-State Current Low (IOZL) 10 µA

Input Voltage Low (VIL) –0.3 0.45 V

Input Voltage Low (VIH) 1.16 VREF+0.3 V

Table 5.4-2 1.8V IO Absolute Maximum Ratings

Parameter Min Typ Max Unit

Input Withstanding Voltage Low –0.5 V

Input Withstanding Voltage High 2.3 V

Stresses in excess of the voltage withstanding limits can cause

permanent damage to the device. These are absolute stress ratings only.

Functional operation of the device is not implied at these or any other

conditions in excess IO characteristics table. Exposure to absolute

maximum ratings for extended periods can adversely affect device

reliability.

WARNING

LZT 123 1836 36

5.5 Grounds

Pin Name Direction Function

1 GND - Ground

3 GND - Ground

5 GND - Ground

7 GND - Ground

9 GND - Ground

11 GND - Ground

96 AREF - Analogue reference

There are two ground connections in the wireless modem, AREF (analogue ground)

and GND (digital ground). Pin assignments are shown in the table above.

AREF and GND are connected at a single point inside the wireless

modem, however they must not be joined together in the user

application.

5.5.1 Analogue Ground (AREF)

AREF is the return signal, or analogue audio reference, for AUXI and AUXO. These

two signals provide a single-ended auxiliary audio input (host to module) and output

(module to host). AREF is connected to the common GND inside the wireless modem

only. The application must not connect GND and AREF.

Parameter Limit Unit

Maximum current (IMAX) 12.5 mA

NOTE

LZT 123 1836 37

5.5.2 Common Ground (GND)

GND is the reference, or return signal, for all system interface digital signals, radio

section power, and is also the DC return for the power supply, VCC.

User application circuitry should connect all GND pins together in order to carry the

high current drawn by the wireless modem.

Parameter Per Pin Total Unit

Maximum current (IMAX) 600 3600 mA

Maximum average current (IAVG) 100 600 mA

LZT 123 1836 38

5.6 Regulated Power Supply Input (VCC)

Pin Name Direction Function

2 VCC Input DC power

4 VCC Input DC power

6 VCC Input DC power

8 VCC Input DC power

10 VCC Input DC power

12 VCC Input DC power

Power is supplied to the wireless modem VCC pins, from an external source.

User application circuitry should connect all VCC pins together in to carry the current

drawn by the wireless modem.

The electrical characteristics for VCC are shown in the following table.

Parameter Mode Limit

Nominal 3.6 V

Min 3.2 V

Max 4.5 V

Absolute maximum limit -0.3V to 6.5V

VCC Supply voltage

Maximum supply ripple <100mV @<200kHz

<20mV @>200kHz

Maximum allowable voltage drop Transmission burst 200mV

2100 mA peak

Maximum current consumed Full power (2W) transmit 340 mA average

Stresses in excess of the absolute maximum limits can cause permanent

damage to the device. These are absolute stress ratings only. Functional

operation of the device is not implied at these or any other conditions in

excess of those given in the normal Min & Max values stated. Exposure

to absolute maximum ratings for extended periods can adversely affect

device reliability.

WARNING

LZT 123 1836 39

The wireless modem has insufficient internal capacitance to supply the

large current peaks during GSM burst transmission - use the following

general guidelines in designing the application power supply.

Fit a low ESR electrolytic capacitor close to the wireless modem (>1,000

µF, with an ESR < 100 m)

Ensure power supply to wireless modem line resistance is < 200 m

The module has approximately 40µF of internal capacitance across the

VCC pins. During initial power-up the host power supply will have to

charge this capacitance to the operating voltage. This initial in-rush

current may exceed the module’s normal peak current, sometimes

greater than an order of magnitude higher (depending upon the power

supply design) for a short duration (generally a few microseconds).

TIP

CAUTION

LZT 123 1836 40

5.7 Voltage Reference (VREF)

Pin Name Direction Function

65 VREF Input Host application voltage reference

The GS64 has level shifter circuits on each digital IO interface. This allows

applications with different logic technology to interface to the module without having

to perform voltage level-shifting on the host circuitry. VREF is connected to the host-

side level-shifters. This pin must be connected to your digital IO voltage source.

VREF Input

Parameter Min Typ Max Unit

VREF input voltage 1.8 5.2 V

VREF load current 0.1 50 µA

Figure 5.7-1 Level shifter arrangement

LZT 123 1836 41

5.8 Battery Charging Input (CHG_IN)

Pin Name Direction Function

11 CHG_IN Input Battery charger power

For battery powered applications, the GS64 provides a charge input (CHG_IN) pin to

aid and support battery charging. A typical application would power the wireless

modem directly from a battery source connected to VCC (pins 2, 4, 6, 8, 10) then

provide a dc power source to the CHG_IN connection (pin 11). The GS64 can control

an internal switching FET which creates a charging pathway to the battery. While

power is provided at CHG_IN, the battery charge can be maintained. If the power

should fail or be removed at CHG_IN, the application will be supported by the battery

alone. When CHG_IN voltage returns, the battery charging and maintenance will

commence once more.

The GS64 module supports only one mode of charging, microprocessor supervised

pulsed-charging. Also, the module only supports one battery cell type as standard.

Users may, if they wish, develop charging algorithms and control through the Sony

Ericsson M2mpower Embedded Applications. Users wishing to attempt charging of

battery types not supported by the standard type, indicated in this document, do so

at their own risk.

Battery charging algorithms are unique to different battery types. Sony

Ericsson Mobile Communications will not accept any responsibility or

liability for damage, product failures, even death or injury occurring as

a result of incompatible battery and charging algorithms being

applied.

Safety considerations must be taken into account when using the battery charge

function of the GS64; for example, monitoring the temperature of the battery. If the

temperature of the battery exceeds its specification limits, battery charging must be

stopped immediately. If the battery temperature continues to rise the application

should be suspended or the battery disconnected. Battery temperature can be

monitored with a suitable detection circuit, using the GS64 ADC inputs.

When charging Lithium batteries, the battery pack must have an

internal protection circuit in accordance with the manufacturer's

instructions.

DANGE

CAUTION

LZT 123 1836 42

During microprocessor supervised mode, the GS64 takes a current-limited voltage

source at the CHG_IN pin to implement constant-current charging of a single Li-Ion

cell connected to the VCC pins.

BATTERY

CHARGER

CONTROL

BATTERY

CHARGER

CONTROL

TIMER

3.6V

50mA

3.6V

50mA

MAX CURRENT

DETECTION

ADC

SUI

uPC

VREF1

ADIN1

VREF2

VCC

SINGLE

CELL Li-ION

VOLTAGE

SOURCE

CHG_IN

CHARGE FET

BATTERY

CHARGER

CONTROL

BATTERY

CHARGER

CONTROL

TIMER

3.6V

50mA

3.6V

50mA

MAX CURRENT

DETECTION

ADC

SUI

uPC

VREF1

ADIN1

VREF2

VCC

SINGLE

CELL Li-ION

VOLTAGE

SOURCE

CHG_IN

CHARGE FET

Figure 5.8-1 Typical application for pulse charging a battery

5.8.1 Charging Process

Figure 5.8-1 shows a typical battery charging implementation. The voltage source

must be current limited (500 mA max). A reverse current protection diode prevents

external fault conditions from draining the battery. A small (typ 10µF) capacitor

should be placed close to the CHG_IN pin.

In the application shown, a conditioning phase slowly raises the voltage of a deeply

discharged cell to a level suitable for fast-charging. After cell conditioning is

complete, the microprocessor uses the GS64’S ADC converter to monitor the battery

cell’s status and uses the power management block to control the charge-FET.

LZT 123 1836 43

A charge request is initiated when an external voltage source is applied to the CHG_IN

pin. However, before this request is passed to the microprocessor, CHG_IN is verified

to be greater than VCC by 150 mV, and at least 3.7 V. If the latter criteria is not met,

the module limits charging to the conditioning phase. If the former criteria is not met,

the charge request is ignored and all charging is disabled. If the CHG_IN voltage

exceeds the upper limit of 6.3 V it will be detected by the module, but charging is not

inhibited. In this case, however, CHG_IN is outside the normal operating range of the

device, so the software will not initiate charging if CHG_IN > 6.3 V is detected.

The delta between CHG_IN and VCC is continuously monitored; however, the valid to

invalid detection has a delay of 46 ms. When CHG_IN exceeds VCC by 150 mV, it is

considered to be at a valid relative level. It is considered to have an invalid relative

level if it subsequently falls below VCC by 50 mV. If the relative voltage of CHG_IN

goes invalid and remains invalid for the duration of the detection delay, charging is

terminated.

As a safety precaution, the battery cell voltage must be at least 2.5 V before fast-

charge is allowed to take place. If the battery cell voltage is less than 2.5 V, it is

considered either deeply discharged or shorted. To protect a Li-ion cell from the

damage that may occur if it is fast-charged from this state, a 3.6 V trickle-charge

source is used to safely condition the battery cell. The conditioning charge current is

limited to 50 mA, which for most Li-ion cells is 10% or less of the recommended CC

fast-charge current. In most instances, the battery cell voltage will be greater than

2.5 V at the time the charge request is initiated, resulting in the conditioning phase

being skipped.

There is always a small chance that the charge management block in

the GS64 power management ASIC will malfunction or fail, which

could lead to over-charging of the battery. It is strongly

recommended that any battery chosen for use with your application

has its own additional integrated over-current and over-voltage

protection.

5.8.2 Series Diode

When charging is disabled, the potential for rapid cell discharge through the body

diode inherent in the Enhancement-mode charging FET, a Schottky diode must be

placed in between the external source and the CHG_IN pin. The diode should have a

forward current and power dissipation rating consistent with its intended use, and a

maximum forward voltage drop of 0.6V.

CAUTION

LZT 123 1836 44

5.8.3 Battery Selection

Whilst there are several rechargeable battery technologies commercially available,

including Nickel Cadmium (NiCd), Nickel Metal Hydride (Ni-MH), Lithium-Polymer (Li-

Polymer) and Lithium-Ion (Li-Ion), the only technology recommended and supported

for use with the GR64 is Li-Ion. Li-Ion provides a good combination of high energy

(3.7v) and long cycle life, which lead to low overall energy cost.

The weight of lithium ion batteries is approximately one half compared with a nickel

cadmium or nickel metal hydride battery of similar capacity. The volume of lithium

ion batteries is 40 to 50% smaller than that of nickel cadmium, and 20 to 30% smaller

than that of a nickel metal hydride.

The lithium ion battery is free from the so-called memory effect, a phenomenon

associated with nickel cadmium in which the apparent battery capacity decreases

when shallow charge and discharge cycles are repeated.

A single lithium ion cell has a voltage of 3.7V (mean value), which is equal to either

three nickel cadmium or nickel-metal hydride cells connected in series. This voltage

is close to the nominal VCC of the GS64 device.

Li-Ion batteries generally provide long storage life with few limiting condition, and

offer problem-free charge after long storage. Under normal conditions, the lithium

ion battery has a life of more than 500 charge/discharge cycles. Also, Li-Ion

batteries have a slow self-discharge rate (typically 1.3% per month, compared with

Ni-MH batteries which can exceed 50% per month).

Lithium ion batteries are environmentally friendly, inasmuch as they do not contain

any heavy metal pollution substances such as cadmium, lead, or mercury.

There are many manufacturers of Li-Ion batteries worldwide. Sony Ericsson make no

recommendations with regard to specific vendors, but here are some considerations

for GS64 users which may prove to be useful in the selection process and

implementation:

Li-Ion batteries marketed for cellular (mobile) phone use may make a good choice

battery manufacturers with heritage in supplying the cellular (mobile) phone industry

could make a good choice, especially for high-volume requirements

look carefully for batteries which are rated at temperatures that the GS64 is likely to

operate at (many batteries are only specified for -20°C to +65°C operation which may

not be sufficient)

LZT 123 1836 45

small form-factor (typically handset-sized) Li-Ion battery capacity varies

considerably, some batteries are rated as high as 3200mAh (600mAh to 1800mAH

are more commonly available)

weight is generally not a problem with typical GS64 user application, even so small

form-factor Li-Ion batteries (up to 1800mAh) can vary between 10 to 40 grams

size is generally a factor of capacity, since larger capacity batteries naturally have

more material/cells, and will range between 2750mm3 to 18000mm3 for small form-

factor Li-Ion batteries

the speed by which lithium-ion ages is governed by temperature and state-of-

charge; high temperatures and deep discharge will effect useful life

if possible avoid frequent full discharges because this puts additional strain on the

battery, partial discharges with frequent recharges are better

never short circuit the terminals of a Li-Ion battery

do not expose Li-Ion batteries to moisture or rain

monitor battery temperature during charging using a thermistor placed on or near the

battery wired to an ADC input on the module

Li-Ion batteries have a higher ESR (compared to Ni-Cd or Ni-MH), although this

should not be a limiting factor for peak current delivery, any battery should be

capable of at least 50% greater than the GS64 demands (~3A pk)

To determine battery life, on a full charge, the following rule of thumb can be

applied:

Standby time = Battery Capacity (mAh) / Idle current (mA)

Call time (voice or data) = Battery Capacity (mAh) / Call current (mA)

Example 1 – Standby time:

A 600mAh rated Li-Ion battery, from fully charged (around 4.2V) to the module cut-

off point (3.2V) will provide around 95% of its total charge capacity. For a standby

(idle) current of 18mA, the module will typically provide

600*0.95/18 = 32 hours standby time

LZT 123 1836 46

Example 2 – Call time:

An 1800mAh rated Li-Ion battery fully charged, transmitting maximum power on a

low-band (850/900MHz) channel may consume an average 320mA, therefore the

module would typically provide

1800*0.95/320 = 5 hours 20 mins call time

Example 3 – Typical Operation:

A module performing periodic network data transfers and communicating intervallic

status information to its host would spend its non-active periods in sleep mode. If

the module spends 30 mins each day on call (320mA), 30 second each hour

performing housekeeping, monitoring and status tasks (110mA), and sleeps (2.1mA)

during the intervening periods, an 1800mAh rated Li-Ion battery fully charged would

typically provide

1800*0.95/([0.5hr*320]+[0.2hr*110]+[23.3hr*2.1]) = 7 days 6 hrs operation

The above examples are given for guidance, the actual battery life will

depend upon variables such as battery condition, number of previous

charge/discharge cycles, operating temperature, series resistance

between battery and the module, and manufacturing tolerances

CAUTION

LZT 123 1836 47

5.9 Powering the Module ON and OFF (PON_L, PON_H)

Pin Name Direction Function

21 PON_H Input Device On/Off control

33 PON_L Input Device On/Off control

The GS64 offers two hardware methods to power up and down the module.

The PON_L signal utilizes a momentary switching mechanism to alternate between

power-on and power-off sequences. PON_L is held high to VCC by an internal pull-

up resistor. The user asserts PON_L by pulling this signal low for a pre-defined

period to initiate powering-on of the module. The user re-asserts PON_L with a

subsequent low transition, which is held low for a pre-defined period, to power-off

the module.

The PON_H signal is designed to be pulled high and maintained high for the power on

period. PON_H is held low by an internal pull-down resistor. The user asserts PON_H

by pulling this signal high to VCC in order to initiate powering-on of the module,

then maintains it constantly high during normal use. A subsequent de-assertion,

marked by a transition of PON_H from high to low, and then maintaining the signal

low, will initiate the power-off process.

Only one input should be exercised for each Power-on to Power-off event.

5.9.1 VREF as a Power Indicator

Presence of the VREF signal can be used as a useful indicator that power-on has been

successfully initiated. The absence of VREF can be used a successful indicator that

the power-off sequence is complete.

The initial presence of VREF indicates that the LDOs are powered, however the

module will be establishing network connectivity and registration at this point.

Communications between the host application and the module can commence shortly

thereafter, however completion of the network registration will be sometime

afterwards (the period is dependent upon network loading at the time of attempted

registration).

Once the power-off sequence has been initiates, shutting-down the LDOs is the last

action in the process. The absence of VREF is an indication that network de-

registration and shut-down is complete.

LZT 123 1836 48

5.9.2 Module On & Off Sequence

Figure 5.9-1 shows typical powering-on and powering-off sequences, using the two

optional hardware interfaces.

Figure 5.9-1 Typical Power-On & Power-Off Sequences

Event Description

A VCC is applied to the module, PON_L is pulled high internally

B PON_L is pulled low by the user application, initiating a power-on sequence

C VREF presence indicates a successful power-on initialization

D PON_L is pulled low by the user application, initiating a power-off sequence

E VREF absence indicates network de-registration and shut-down complete

F VCC can be safely removed

G VCC is applied to the module, PON_H is pulled low internally

H PON_H is pulled high & retained high, initiating a power-on sequence

I VREF presence indicates a successful power-on initialization

J PON_H is released, initiating a power-off sequence

K VREF absence indicates network de-registration and shut-down complete

L VCC can be safely removed

LZT 123 1836 49

5.9.2.1 Power On Timing

Figure 5.9-2 Power On timing using PON_L as an example

The GS64 power On sequence is shown above using PON_L as an example. The

significant signals are VCC, P_ON and VREF, shown by solid lines. The other signals

(in dashed lines) are internal to the module and are shown for reference purposes

only.

Initially, power is supplied to the VCC pins. The presence of power raises the PON_L

through a pull-up resistor to VCC potential. In order to power the module, PON_L is

pulled to ground. Once PON_L has been held low for 125ms (denoted by t

1) the

primary LDOs power up, including the VREF output. VREF exceeds it’s reset threshold

approx 500µs later, then 250ms afterwards (denoted by t2) the

RESET

line goes high.

The microprocessor can latch the power-on state by setting the power keep

(PWR_KEEP)

high after the

RESET

goes high and before the power on (PON_L) signal is

released.

It is recommended that P_ON is held low for at least 450ms to guarantee completion

of the power up sequence.

LZT 123 1836 50

The PON_H signal has a similar effect at the point of assertion. The power-on timing

sequence is the same, provided PON_H remains high. PON_H has to remain high in

order for the module to function.

5.9.3 Turning the Module Off

Figure 5.9-3 Power Down timing

The GS64 power down sequence is shown above. The significant signals are VCC,

PON_L and VREF, shown by solid lines. The other signals (in dashed lines) are internal

to the module and are shown for reference purposes only.

With the module powered normally, PON_L is pulled-up to VCC potential. In order to

power down the module, PON_L is pulled to ground. Once PON_L has been held low

for at least 125ms the shut-down procedure begins. Although PON_L can be held

low for longer, it will delay completion of the shut-down event. If the module is

registered on a GSM network, the de-registration process will complete; this may last

between 3 to 30 seconds. The power latch (PWR_KEEP) is released and approximately

70ms later the LDO outputs fall, as indicated by the removal of the VREF output.

Once VREF is no longer present, the application can safely remove VCC.

In order to turn the module off using the PON_H signal, the signal is released. The

power-off timing sequence is the same, provided PON_H remains low.

LZT 123 1836 51

The RTC can continue to operate even though VCC is removed,

provided that a sufficiently charged backup device is connected to the

VRTC. Refer to section 5.21.1 for details.

The relevant characteristics of the ON/OFF Power control interface are shown in the

table below.

Parameter Conditions Min Typ Max Unit

Input low=0V, VCC=3.6V -60 -25 -12 µA

PON_L Input high =VCC, VCC=3.6V 0 1 µA

Input low=0V, VCC=3.6V -1 0 µA

Input current

PON_H Input high =VCC, VCC=3.6V 8 20 60 µA

NOTE

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5.10 Analogue Audio

Pin Name Direction Function

92 AUXIP Input Differential auxiliary audio to module from host (pos)

93 AUXIN Input Differential auxiliary audio to module from host (neg)

94 AUXOP Output Differential auxiliary audio to host from module (pos)

95 AUXON Output Differential auxiliary audio to host from module (neg)

96 AREF - Analogue reference

97 MICIP Input Microphone input positive

98 MICIN Input Microphone input negative

99 EARP Output Earpiece output positive

100 EARN Output Earpiece output negative

The analogue audio signals comprise of two audio inputs to the module, and two

audio outputs from the module. Both sets of audio interfaces are differential.

Analogue audio can be used for various configurations, including a car kit mode,

portable hands free and speakerphone (with an additional output gain stage).

Five audio profiles are available for GS64 users to configure various modes of

operation. Each profile is factory set to represent different modes, typical of general

usage. The customer can modify profiles to optimize acoustic performance to their

specific application.

The analogue inputs and outputs share common uplink and downlink chains which

are multiplexed, and selectively switched by the user through AT-commands.

There are five factory-set audio profiles as follows:

• portable hands free

• handset

• car kit

• speakerphone

• headset

Portable hands free is the factory-set default profile. The modification, configuration,

manipulation and storage of audio profiles is achieved with the AT*E2EAMS (Audio

Profile Modification) and AT*E2APR (Audio Profile).

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5.10.1 Auxiliary Audio To Mobile Station (AUXIP, AUXIN)

AUXI is a differential auxiliary analogue audio input to the wireless modem.

Internally, the signal is routed to the CODEC (COder/DECoder), where it is converted

to digital audio and mapped to an internal bus.

All sources must be AC-coupled to avoid attenuation of low frequencies. Use a

capacitor greater than the value shown in the table below.

The AUXI input is a passive network followed by the transmit part of the CODEC.

Parameter Conditions Min Typ Max Unit

max input gain 142 158 178 mVrms

Input voltage full scale min input gain 447 501 564 mVrms

Frequency response -3dB cut-off 300 3400 Hz

Output dc bias level 2.16 2.4 2.64 V

AC coupling capacitance 1 µF

5.10.2 Auxiliary Audio From Mobile Station (AUXOP, AUXON)

The auxiliary output is a differential analogue audio output from the wireless modem

and may be used to drive a speaker or an earpiece. The interface has an internal

100nF coupling capacitor; a load of 10kohm will provide a near full-scale output

capability between 300 to 4300 Hz.

The table below shows the audio signal levels for AUXO.

Parameter Conditions Min Typ Max Unit

Output voltage full scale RL =10k 670 750 840 mVrms

Frequency response -3dB cut-off (RL =10k) 225 Hz

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5.10.3 Microphone Signals (MICIP, MICIN)

MICP and MICN are balanced differential microphone input pins. These inputs are

compatible with an electret microphone. The microphone contains a FET buffer with

an open drain output, which is supplied with at 2.4V ±10% relative to ground by the

wireless modem as shown below.

Figure 5.10-1 Microphone connections to the wireless modem

The input low-noise amplifier stage is constructed out of standard low-noise op

amps. External resistors set the gain of this stage.

The input gain is scaled by the input resistors to be around 18, which provides

optimal performance for many standard types of electret microphones. The module

provides a microphone bias at 2.4V, and can supply at least 1mA of current.

Parameter Conditions Min Typ Max Unit

max input gain 14 16 18 mVrms

Input voltage full scale min input gain 45 50 56 mVrms

Frequency response -3dB cut-off 300 3400 Hz

Output dc bias level 2.16 2.4 2.64 V

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5.10.4 Speaker Signals (EARP, EARN)

EARP and EARN are the speaker output signals. These are differential-mode outputs.

With a full-scale PCM input to the CODEC, 0 dB audio output gain setting, and a

differential load RL = 30Ω, the output voltage between EARP and EARN is 1.5 V rms.

For load resistances less than 30Ω, the full-scale output needs is limited using the

modules internal programmable gain attenuator.

The electrical characteristics are given in the table below.

Parameter Conditions Min Typ Max Unit

RL = 30 1.34 1.5 1.68 Vrms

RL = 16  1.41 Vrms

Input voltage full scale

RL = 8 1.24 Vrms

Frequency response -3dB cut-off 300 3400 Hz

5.11 PCM Digital Audio (SSP)

Pin Name Direction Function

66 PCMCLK In/Out Serial PCM clock

67 PCMFS In/Out Serial PCM frame synchronization

68 PCMDTM Input Serial PCM data to module from host

69 PCMDFM Output Serial PCM data from module to host

The SSP (Synchronous Serial Port) digital interface is configured to provide a PCM

(digital) audio interface. This interface can be used to process PCM digital audio

signals as an alternative to routing signals to the CODECs through the analogue

uplink and downlink chains.

5.11.1 PCM Data Format

The PCM digital audio interface for GS64 is based upon the Texas Instruments SSI

standard. The SSP is a versatile interface which can be programmed for different

clock rates and data frame sizes between 4 to 16 bits.

LZT 123 1836 56

PCMCLK (bit clock) and PCMSYNC (frame synchronization) are both generated by the

DSP within the wireless modem. The DSP within the wireless modem in this instance

is the master for all external PCM, so clocks and data from external devices must be

synchronized to it.

For standard GSM voice a 13-Bit PCM data word is embedded in a 16-bit word frame,

as shown in Figure 5.11-1 below.

LSBMSB

D15

13-bit sample occupies these frame bits

sample LSB justified

LSBMSB

D15

13-bit sample occupies these frame bits

sample LSB justified

Figure 5.11-1 Typical 16-bit PCM Voice Sample Word Format

Typical PCM data transfer is shown in the following figures.

MSB

LSB

SSPCLK

SSPFS

SSPDFM

SSPDTM Q

MSB

LSB

SSPCLK

SSPFS

SSPDFM

SSPDTM Q

Figure 5.11-2 PCM Frame format for a single transfer

MSB

LSB

MSB

Frame nFrame n-1 Frame n+1

SSPCLK

SSPFS

SSPDFM

SSPDTM MSB

MSB

LSB

MSB

Frame nFrame n-1 Frame n+1

SSPCLK

SSPFS

SSPDFM

SSPDTM

Figure 5.11-3 PCM Frame format for a continuous transfer

LZT 123 1836 57

5.12 Serial Data Interfaces

The serial channels consist of two UARTs and a USB port. These provide

communication links to the application or accessory units.

The serial channels can be used in differing configurations, depending upon the users

requirements and application. In practice, both UARTs can be configured as either

the control interface or the logging interface. Similarly, control and logging can be

carried out simultaneously on the USB interface. However, the common (default)

configuration options are described:

UART1 has full RS-232 functionality and is used for all on- and off –line

communication (modem sleep & wake functional control is an integral component of

this interface). Its intended use is that of the primary command (AT) interface.

UART2 behaves as a general-purpose serial data link. It can be used for data logging

and de-bugging purposes. It can also be used as a data interface to peripheral

devices, such as a GPS receiver.

The USB port provides a convenient general purpose peripheral (slave) port for use

with host devices which have USB controllers.

5.12.1 UART1

Pin Name Direction Function

53 RI Output Ring Indicator

54 DCD1 Output Data Carrier Detect (UART1)

55 DTR1 Input Data Terminal Ready (UART1)

57 RTS1 Input Ready To Send (UART1)

58 CTS1 Output Clear To Send (UART1)

59 DTM1 Input Data To Module from host (UART1)

60 DFM1 Output Data From Module to host (UART1)

56 DSR1 Output Data Set Ready (UART1)

UART1 is a full featured Universal Asynchronous Receiver Transmitter providing full-

duplex asynchronous communication.

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UART1 has the following features :

• 32 bytes of FIFO for both receive and transmit

• FIFO threshold interrupts

• 1 start bit, 7 or 8 data bits, 1 optional parity bit, 1 or 2 stop bits

• Programmable baud rate

• Auto-configuration mode with auto-baud and auto-format operation

• Hardware flow control

• Software flow control.

UART1 signals replicate a 9-pin RS232 (V.24) serial port. However, UART1 signal

levels are not compliant with the RS232 (V.28) standard. Conversion between the

wireless modem CMOS levels and RS232 levels can be achieved using a standard

interface IC, such as the Maxim Integrated Products MAX3237. The relationship

between the levels is shown in the table below.

DTM, DFM RI,RTS,CTS,DSR,DTM,DCD RS232 level GS64 level

1 OFF <-3V VREF-0.4V

0 ON >+3V 0.4V

5.12.2 Serial Data Signals (DTM1, DFM1)

The default baud rate of the UARTs is auto-baud. Baud rates of between 600 bauds

to 460 kbauds are possible. The wireless modem also supports 3GPP TS27.010

multiplexing protocol, which starts when the appropriate command is sent.

5.12.2.1 Serial Data From Wireless modem (DFM1)

DFM1 is an output signal that the wireless modem uses to send data via UART1 to the

host application.

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5.12.2.2 Serial Data To Wireless modem (DTM1)

DTM1 is an input signal, used by the application to send data via UART1 to the

wireless modem.

5.12.3 Control Signals (RTS1, CTS1, DTR1, DSR1, DCD1, RI)

Depending upon the user application, some, all, or none of the control signals may be

needed. Each of the control signals can alternatively be configured as a general

purpose IO. When hardware flow control is not used in communications between the

application and the wireless modem, some applications may require RTS and CTS to

be connected to each other at the wireless modem. Users should familiarize

themselves with the specific implementation of their UART.

The GS64 has a feature in which sleep (lower power) mode can be controlled through

a special handshake protocol using hardware flow control. Details of this protocol

and the AT commands associated with it are contained in a special Application Note,

obtainable through your normal customer support channel.

UART1 converted signals, together with GND, DTM1 and DFM1 form a 9-pin RS232

data port.

5.12.3.1 Hardware flow control RTS1 and CTS1

RTS and CTS provide a hardware flow control mechanism.

5.12.3.2 Request to Send (RTS1)

RTS is used to condition the DCE for data transmission. The default level is high by

internal pull up. The application must pull RTS low to enable data transmission from

the wireless modem. Similarly, the wireless modem asserts CTS low, indicating it is

ready to receive data transmission from the host.

5.12.3.3 Clear To Send (CTS1)

CTS is asserted by the DCE to indicate that the host (DTE) may transmit data. When

CTS is high, the host (DTE) is not permitted to transmit data. The table below shows

the load characteristics for this signal.

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5.12.3.4 Data Terminal Ready (DTR1)

DTR indicates that the DTE is ready to receive data. It also acts as a hardware ‘hang-

up’, terminating calls when switched high. The signal is active low. Users can define

the exact behavior of DTR with an the AT&D command. DTR1 is used as an optional

sleep control mechanism when the module is configured appropriately.

5.12.3.5 Data Set Ready (DSR1)

DSR indicates that the DCE is ready to receive data. The signal is active low. Behavior

is controlled using the AT&S command. DSR1 is used as an optional sleep control

mechanism when the module is configured appropriately

5.12.3.6 Data Carrier Detect (DCD1)

DCD indicates that the DCE is receiving a valid carrier (data signal) when low.

Behavior is controlled using the AT&C command.

5.12.3.7 Ring Indicator (RI)

RI indicates that a ringing signal is being received by the DCE when toggled low.

Users can define the exact behavior of RI with an AT command, including the option

of asserting the RI signal to flag an incoming SMS by using the AT*E2SMSRI

command.

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5.12.4 UART2 (DTM2, DFM2)

Pin Name Direction Function

61 RTS2 Input Request To Send (UART2)

62 CTS2 Output Clear To Send (UART2)

63 DTM2 Input Data To Module from host (UART2)

64 DFM2 Output Data From Module to host (UART2)

UART 2 consists of a full duplex serial communication port with transmission,

reception lines and hardware flow control.

Timing and electrical signals characteristics are the same as for UART1, DTM1 and

DFM1, including the baud rate range and the capability to auto-baud.

5.12.4.1 Transmitted Data (DTM2)

DTM2 is used by the application to send data to the wireless modem via UART2. It

has the same electrical characteristics the equivalent signal in UART1.

5.12.4.2 Received Data (DFM2)

DFM2 is used to send data to the application via UART2. It has the same electrical

characteristics as the equivalent signal in UART1.

5.12.4.3 Request to Send (RTS2)

RTS is used to condition the DCE for data transmission. It has the same electrical

characteristics as the equivalent signal in UART1.

5.12.4.4 Clear To Send (CTS2)

CTS is asserted by the DCE to indicate that the host (DTE) may transmit data. It has

the same electrical characteristics as the equivalent signal in UART1.

LZT 123 1836 62

5.12.5 USB

Pin Name Direction Function

35 USBDP In/Out USB data positive

36 USBDN In/Out USB data negative

34 VUSB Input USB DC power

The USB interface is compliant with the USB2.0 standard for a full speed (12Mbps)

endpoint device. Together with VUSB (the USB transceiver DC power) and GND it

creates a standard USB 4-pin interface. VUSB (VBUS in the USB standard) is nominally

5.0V.

The USB interface has the following features

• Full-speed (12 Mbits/s) device operation

• 16 unidirectional endpoints

• Each endpoint capable of supporting control, interrupt, isochronous and bulk

transfer

• Programmable endpoint types and FIFO sizes and internal 1120-byte logical

(2240-byte physical for dual-packet mode) shared FIFO storage allow a wide

variety of configurations.

• Dual-packet mode of FIFOs reduces latency

• USB reset can be programmed to clear device address.

• Firmware ability to wake up and reset a suspended device

• 8, 16, 32, and 64-byte FIFO sizes for non-isochronous transfers

• 64, 256, 512, and 1024-byte FIFO sizes for isochronous transfers

• Firmware downloading

• Trace debug port for module diagnostics

The USB interface supports 3GPP TS 27.010 multiplexing, and may be used as the

primary AT-command interface.

Internally, the USBDP line is pulled up by a 1.5K resistor, in accordance with the USB

standard, to indicate that it’s a full-speed capable device to the USB controller.

To implement successful applications using the GS64 USB interface, users should

familiarize themselves with the USB specification.

LZT 123 1836 63

5.12.6 SIM Card Interface

Pin Name Direction Function

14 SIMVCC Output 1.8V or 3.0V SIM card supply

15 SIMRST Output SIM card reset signal

16 SIMCLK Output SIM card clock signal

17 SIMDAT In/Out SIM card data

18 SIMDET Input SIM presence detection

This interface allows the user to communicate with the smart (SIM) card in the user

application. The GS64 offers alternative arrangements for accessing the SIM

depending on which variant of the GS64 is used. Both variants provide this interface

through the system connector, referred to as the

external

remote

SIM interface to

distinguish it from the integrated SIM interface.

The maximum distance between the SIM card holder and the wireless modem is

70cm. SIM holders placed further than this distance may not meet the SIM interface

performance specification.

This SIM interface allows the use of 3 V and 1.8 V SIM cards. The module does not

support 5V SIM cards. The wireless modem automatically detects the SIM type,

switching the signal voltages accordingly. SIM voltage levels, as shown in the

following table, are dependent on the type of SIM card detected by the wireless

modem.

Signal Parameter Mode Min Typ Max Unit

1.8V 1.71 1.8 1.89 V

SIM supply voltage 3.0V 2.75 2.9 3.05 V

Short circuit current 10 50 mA

Quiescent Supply Current 3.0V 20 µA

Output Capacitance 0.3 2 µF

SIMVCC

Output Capacitor ESR 0.01 1.0 

1.8V 0.7xSIMVCC V

High level input voltage (VIH) 3.0V 0.7xSIMVCC V

1.8V 0.2xSIMVCC V

Low level input voltage (VIL) 3.0V 0.4 V

1.8V 0.8xSIMVCC V

High level output voltage (VOH)3.0V 0.8xSIMVCC V

1.8V 0.4 V

SIMDAT

Low level output voltage (VOL) 3.0V 0.4 V

LZT 123 1836 64

Signal Parameter Mode Min Typ Max Unit

1.8V 0.9xSIMVCC V

High level output voltage (VOH)3.0V 0.9xSIMVCC V

1.8V 0.4 V

SIMCLK

SIMRST Low level output voltage (VOL)3.0V 0.4 V

5.12.7 SIM Detection (SIMDET)

SIMDET is used to determine whether a SIM card has been inserted into or removed

from the SIM card holder. You should normally wire it to the ‘card inserted switch’ of

the SIM card holder, but different implementations are possible.

When left open, an internal pull-up resistor maintains the signal high and means ‘SIM

card missing’ to the wireless modem. When pulled low the radio device assumes a

SIM card is inserted. SIMDET is a Digital IO signal.

In order to meet regulatory approval requirements, the SIMDET

function must be implemented in the host application.

5.13 Synchronous Serial Port (SSP) Interface [to be implemented in a future release]

Pin Name Direction Function

70 SSPCLK In/Out SPI clock

71 SSPFS In/Out SPI frame synchronization

72 SSPDTM Input SPI data to module from host

73 SSPDFM Output SPI data to host from module

The SSP interface provides a synchronous serial peripheral interface based on the

Motorola SPI protocol.

The SSPI interface operates in a single master mode only, with the module acting as

master. Four clock rates are supported through programming; 1.5MHz, 800kHz,

400kHz, 200kHz. The interface supports a variable word size, between 4bits to 16

bits. Continuous Transfer modes are not supported.

The SSP supports programmable data sizes of 4 bits to 16 bits, in addition to which

the polarity of the clock signal to the SPCLK pin is programmable through a register.

NOTE

LZT 123 1836 65

5.14 Memory Card Interface (SD/MMC) [to be implemented in a future release]

Pin Name Direction Function

74 MMCCLK Output SD/MMC card clock

75 MMCCMD In/Out SD/MMC card command/response

76 MMCDAT0 In/Out SD/MMC card data 0

77 MMCDAT1 In/Out SD/MMC card data 1

78 MMCDAT2 In/Out SD/MMC card data 2

79 MMCDAT3 In/Out SD/MMC card data 3

80 MMCMD_EN Output SD/MMC card command enable

81 MMCDAT_EN Output SD/MMC card data enable (data 1-3)

82 MMCDAT_EN0 Output SD/MMC card data enable (data 0)

SD/MMC interface module acts as either a multimedia card bus host or a secure

digital memory card bus host. The interface conforms to the following standards:

• Multimedia Card Specification v2.11

• Secure Digital Memory Card Physical Layer Specification v0.96

The SD/MMC interface provides around 800kbps net throughput.

The SD/MMC interface, like all IO in the module, is 1.8V. In order to interface to

some SD/MMC devices based on 3V technology it is necessary to level shift these

signals for compatibility purposes. The MMC MD & DAT enable signals (pins 80, 81,

82) are provided to configure level shifters for directivity, which may be used with the

Agere PSC2217 level shifter for example. There are other means of level shifting

using bi-directional level shifters which do not require direction pins, such as:

• Philips GTL2002, 2-bit bidirectional low voltage translators

• Maxim MAX3001E, 8-channel bidirectional level translators

5.14.1 Multimedia Card System

The multimedia card system transfers commands and data using three signal lines on

a single physical bus:

LZT 123 1836 66

• MMCCLK: One bit is transferred on both command and data lines with each clock

cycle. The clock frequency varies between 0 MHz and 20 MHz for a multimedia

card.

• MMCCMD: Bidirectional command channel that initializes a card and transfers

commands. CMD has two operational modes; open-drain for initialization and

push-pull for command transfer. This depends on speed requirements for the

command channel during the initialization phase; external open-drain pull-up

resistor may be needed if the 200 k internal pull-up resistor is too large.

• MMCDAT: Bidirectional data channel, operating in push-pull mode.

5.14.2 Secure Digital Memory Card System

The secure digital memory card system consists of the host and cards connected in a

star topology. Multimedia cards and secure digital memory cards can be used in the

same system. The power supply can be provided by the host or level-shifter devices

such as Agere’s PSC2217.

The following signals are used on the secure digital memory card bus:

• MMCCLK: Host to card clock signal.

• MMCCMD: Bidirectional command/response signal (one per card if multiple cards

are connected to the bus, in which case, bus multiplexing logic is required).

• MMCDAT[3:0]: Bidirectional data signals (one set per card).

• VDD, VSS: Power and ground signals provided by the host or level translator

product.

The MCI (Multimedia Card Interface) does not contain bus multiplexing logic. If more

than one secure digital memory cards needs to be supported, the user must

implement bus multiplexing logic with external components.

LZT 123 1836 67

5.15 Service/Programming

Pin Name Direction Function

20 SERVICE Input Flash programming enable signal

The SERVICE interface is a standard IO, configured internally as an Input. This input is

activated in order to enable flash memory programming. The SERVICE interface is

normally pulled HIGH and is made active by the host application pulling it LOW.

There are two methods for updating the firmware in the GR64: Sony

Ericsson Emma III and Updater. The Emma III system is a web based

tool that accesses a Sony Ericsson server from which signed software

can be downloaded. The Updater is a local application that downloads

a signed image provided by SEMC.

5.16 LED [to be implemented in a future release]

Pin Name Direction Function

37 LED1 Output LED control signal

38 LED2 Output LED control signal

The LED driver interface is able to operate single LEDs or a series of LEDs (such as

LED backlighting). The LED interfaces are driven by programmable current sources,

designed to control the brightness of the LEDs connected to them (typical of

keyboard or LCD illumination).

LED1 can be programmed to sink up to 75mA or 150mA in nonlinear steps over two

ranges of output. LED2 can be programmed to sink from up to 50mA or 100mA in

nonlinear step over two ranges of outputs. Both LED drivers are capable of sinking

their maximum output current at a worst-case maximum output voltage of 0.4 V. For

efficient use, the LEDs should be forward connected between the main battery and

their corresponding LED driver output.

NOTE

LZT 123 1836 68

The LED drivers require no supporting components, eliminating the need for current-

limiting resistors. The LED outputs should be programmed to values consistent with

their rated values. If desired, both LED outputs can be ganged together to provide a

maximum single LED driver sink capability of 250mA.

Figure 5.16-1 Typical circuit for LEDs

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5.17 General Purpose IO

All general purpose IO (GPIO) is programmable by the user. Some GPIO signals are

dedicated, other GPIO can be configured as an alternative to other signal functionality

if it is not required by the user. GPIO which has alternate functionality is effectively

multiplexed, so that the user chooses through AT commands the appropriate

configuration for their application.

Dedicated IO

Pin Name Default Alternate Function

40 GPIO1 GPIO1 None

41 GPIO2 GPIO2 None

43 GPIO3 GPIO3 None

44 GPIO4 GPIO4 None

45 GPIO5 GPIO5 None

48 GPIO6 GPIO6 None

49 GPIO7 GPIO7 None

50 GPIO8 GPIO8 None

51 GPIO9 GPIO9 None

Configurable IO

Pin Name Default Alternate function

74 GPIO10 MMCCLK SD/MMC card clock

75 GPIO11 MMCCMD SD/MMC card command

76 GPIO12 MMCDAT0 SD/MMC card data

77 GPIO13 MMCDAT1 SD/MMC card data

78 GPIO14 MMCDAT2 SD/MMC card data

79 GPIO15 MMCDAT3 SD/MMC card data

80 GPIO16 MMCMD_EN SD/MMC card command enable

81 GPIO17 MMCDAT_EN SD/MMC card data enable (1-3)

82 GPIO18 MMCDAT_EN0 SD/MMC card data enable (0)

83 GPIO19 KEYROW1 Keyboard row 1

84 GPIO20 KEYROW2 Keyboard row 2

85 GPIO21 KEYROW3 Keyboard row 3

86 GPIO22 KEYROW4 Keyboard row 4

87 GPIO23 KEYROW5 Keyboard row 5

88 GPIO24 KEYCOL1 Keyboard row 1

89 GPIO25 KEYCOL2 Keyboard row 2

90 GPIO26 KEYCOL3 Keyboard row 3

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91 GPIO27 KEYCOL4 Keyboard row 4

Regular (dedicated) IO and alternate function IO have exactly the same characteristics

and can be programmed in the same way. The use of alternate function IO is subject

to some degree of limitation:

Signals which are assigned SD/MMC functionality are controlled by a single register

bit so that all nine signals are allocated to either memory card or GPIO; it not possible

individually allocate function.

Signals which are assigned keyboard functionality can be re-allocated GPIO

functionality on a pin-by-pin basis, providing anything from 1 to 9 additional GPIO.

Signals defined as keyboard functions are programmed to generate interrupts,

however the same pins programmed as GPIO do not have interrupt capability

associated with them.

GPIO is programmable for the following features

• either an input or output

• level-sensitive or transition-sensitive

• open drain or direct drive

• polarity (inversion)

• internal pull-up resistors

Signal labeled in the

Configurable IO

table which are not being used for the indicated

alternative function be used as general purpose inputs or outputs; they are not

constrained to work in only one direction.

GPIO has a number of sharing (configuration) options. Sharing means that it is not

feasible to operate all the alternative features concurrently, however, with care,

dynamic switching from one feature to another is possible.

5.17.1 Embedded Applications

When a particular IO feature is required, the user sets the state of the relevant IO

blocks by disabling one set before enabling others.

LZT 123 1836 71

The wireless modem checks the state of the IO when the user requests a new

function. The new function is rejected if the current function is not released first.

The states of GPIO

to GPIO

are retained for the next power up. For example,

inputs remain as inputs and outputs remain as outputs. The voltage of a defined

output pin will still drop to 0 Volts in the wireless modem power down state.

LZT 123 1836 72

5.18 Keyboard Signals (KEYROW, KEYCOL)

Pin Name Direction Default Function

83 KEYROW1 Input

Keyboard row 1

84 KEYROW2 Input

Keyboard row 2

85 KEYROW3 Input

Keyboard row 3

86 KEYROW4 Input

Keyboard row 4

87 KEYROW5 Input

Keyboard row 5

88 KEYCOL1 Output Keyboard row 1

89 KEYCOL2 Output Keyboard row 2

90 KEYCOL3 Output Keyboard row 3

91 KEYCOL4 Output Keyboard row 4

The keyboard interface consists of 9 programmable IO pins that are configured for

use in scanning a keyboard/keypad. The maximum sized keyboard matrix achievable

is 5 x 4. Keyboard inputs must be active for a selectable minimum pulse-width

before interrupt generation occurs in the key-press detection process.

Pins that are not needed for the keyboard can be used as programmable IO, as

described in section 0.

The default keyboard configuration is shown in the

Default Function

column of the

table above. Users wishing to configure the keyboard interface differently or as GPIO

should obtain a separate Application Note describing keyboard and GPIO

programming from Sony Ericsson through Customer Support.

5.19 Analogue to Digital Converters (ADIN1, ADIN2, ADIN3, ADIN4)

Pin Name Direction Function

27 ADIN1 Input ADC Input 1

28 ADIN2 Input ADC Input 2

29 ADIN3 Input ADC Input 3

30 ADIN4 Input ADC Input 4

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The module has a single precision 10-bit ADC, shared by a number of functions

within the module and also through the external interface connections. The ADC

sharing arrangement is shown below.

Figure 5.19-1 ADC sharing arrangement

ADC sampling frequency and sampling source selection can be set up and controlled

with AT-commands by the user. ADC samples requires up to 5 clock (ADCLK) cycles

to process. The ADC also performs some system-level sampling. These two factors

limit the maximum practical sampling rate to around 12ksps.

Table 5.19-1 ADC Interface Characteristics

Parameter Condition Min Typ Max Unit

Resolution 10 bit

Coding: Unsigned Magnitude 000 3FF Hex

Differential Nonlinearity –1 1 lsb

Integral Nonlinearity –10 10 lsb

Full-scale Error –3 3 %

Offset Error –14 14 lsb

Conversion Gain* 421 lsb/V

Conversion Intercept* –9 lsb

Low-level Input Voltage ADC output=000h

High-level Input Voltage ADC output=3FFh 2.45 2.59 V

ADC Clock (ADCLK) 260 325 390 kHz

ADC Conversion Time 12 ADCLK

ADC Sample Delay 5 ADCLK

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5.20 Burst Transmission (TX_ON)

Pin Name Direction Function

39 TX_ON Output Transmit indication

Burst transmission is the period during which the GSM transceiver is transmitting RF

signals. TX_ON is an indicator that the module is transmitting.

A typical application may use TX_ON to blank adjacent receiver circuitry as a means of

protecting sensitive input stages.

5.21 Real Time Clock

The real-time clock (RTC) is driven by a 32.768 kHz clock from an internal crystal

oscillator. The clock is divided by 32,768 to generate a clock with a 1 second period

that increments a 29-bit seconds counter. In addition, it can generate interrupts at a

programmed time. The following are the features of RTC:

• 17-year time interval with 1 second resolution.

• Programmed time alarm interrupt

• Alarm output pin

An RTC alarm can be set by using the AT-command AT+CALA.

The RTC relies on an uninterrupted 1.5 V (nominal) power supply (VRTC), whether the

module is powered off or on. The RTC alarm operates from the VRTC supply, and

therefore utilize 1.5 V logic. Users have the responsibility to provide a backup

battery to provide uninterrupted VRTC function when the module is powered down.

RTC Accuracy

Parameter Condition Max Unit

RTC accuracy Ambient (+25±2°C) operation 52.6 Secs/month

RTC accuracy Extreme temperatures 65.2 Secs/month

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5.21.1 Real Time Clock Backup Supply (VRTC)

Pin Name Direction Function

31 VRTC Input DC supply for real time clock

VRTC provides an input connection to the module which allows the user to power the

real time clock (RTC) within the GS64 by way of a coin cell or charged capacitor.

When the module is powered, an internal LDO regulator provides a 200µA source

designed to supply the microprocessor’s RTC block. It is also intended to recondition

a rechargeable coin cell that supplies the RTC module when the main battery is

removed, or has insufficient energy. Because this LDO is always on, even when the

module is powered down, it features very low quiescent current. It also offers reverse

current protection, with low leakage, when the coin cell is powering the RTC block.

The RTC LDO is primarily designed to charge manganese-silicon lithium batteries.

Rechargeable coin cells with different chemical composition may also be charged,

provided their charging requirements are consistent with the RTC LDO’s electrical

characteristics. The VRTC output is nominally 1.5 V.

VRTC LDO characteristics

Parameter Condition Min Typ Max Unit

Output Voltage Tolerance IOUT = 10 µA 1.45 1.5 1.55 V

Maximum Output Current 200 µA

Short-circuit Current Limit VRTC to GND 0.7 1.6 2.9 mA

Output Resistance IOUT = 10 µA 75 100 150 

Line Regulation IOUT = 10 µA 5 mV

Off Reverse Leakage Current 0.1 1 µA

In the backup condition the RTC block will function to as low as 1.1V on the VRTC

pin. The RTC draws 10µA typically during powered backup (15µA max).

Figure 5.21-1 shows the VRTC connectivity arrangement.

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Figure 5.21-1 VRTC connection

5.21.2 RTC Alarm (ALARM)

Pin Name Direction Function

32 ALARM Output RTC Alarm

The Alarm output is logic output from the module which is supplied from the RTC

circuitry block. This block is in turn supplied either from the main supply of the

module or from a backup battery if the main supply is not available.

5.21.2.1 ALARM Output from the Module

The ALARM time is set by the use of an AT-command. The output is normally at

VRTC level and will go low for one second when the ALARM becomes active.

Since the VRTC interface is operable down to 1.1V, transistor circuitry must be used

on the host side. It is recommended that integrators use an FET to minimize current

consumption. If a suitable FET, operating at the low voltage necessary, cannot be

found then bi-polar must be used. The resistors shall be kept as high impedance as

possible to minimize current consumption.

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Figure 5.21-2 Typical host-side circuit for ALARM output

VRTC is specified to work down to 1.1V across the environmental operating

conditions of the GS64. Integrators may discover in controlled environments that the

VRTC interface will function reliably as low as 0.8V, so best practice would be to

design the circuitry to operate down to 0.7V.

5.21.3 ALARM Utilization as a Wake-up

The ALARM output can be used by the host application to wake up from standby or

hibernation mode, but it can also be used to completely power up the host

application. The example below shows how the ALARM output (marked

Out

on Figure

5.21-2, and

on Figure 5.21-3) triggers the enabling of the main power to the

application. The application has a parallel hold transistor (V4), and a Start Button.

Figure 5.21-3 Example of host wake-up circuit

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5.22 Ringer Output (BUZZER) [to be implemented in a future release]

Pin Name Direction Function

52 BUZZER Output Buzzer output

Connecting the BUZZER signal to an inverting transistor-buffer followed by a

piezoelectric transducer enables the wireless modem to play pre-programmed

melodies or sounds.

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6 Antenna Connector

The wireless modem’s antenna connector allows transmission of the radio frequency

(RF) signals from the wireless modem to an external customer supplied antenna. The

connector is a micro-miniature coaxial WFL surface mounted component. Suitable

WFL type mating plug are available from the following manufacturers;

Hirose

The nominal impedance of the antenna interface is 50 ohms.

Feature GSM850 E-GSM900 GSM1800 GSM1900

Frequency range (MHz) 824-894 880-960 1710-1880 1850-1990

Maximum power 33dBm(2W) 33dBm(2W) 30dBm(1W) 30dBm(1W)

Antenna Connector impedance 50 ohms

Antenna VSWR 2.5:1 max

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7 Hints for Integrating the Wireless Modem

This chapter gives you advice and helpful hints on how to integrate the wireless

modem into your application from a hardware perspective.

Please read and consider the information under the following headings before

starting your integration work:

• Safety advice and precautions.

• Installation of the wireless modem.

• Antenna.

7.1 Safety Advice and Precautions

7.1.1 General

Always ensure that use of the wireless modem is permitted. The radio device may

present a hazard if used in proximity to personal medical electronic devices. As a

rule, the wireless modem must not be used in hospitals or onboard aircraft.

You are responsible for observing your country’s safety standards, and where

applicable the relevant wiring rules.

Never use the wireless modem at a gas station, refueling point, blasting area or in any

other environment where combustible vapors or explosives may be present.

Operating the wireless modem close to other electronic devices, such as antennas,

television sets, and radios may cause electromagnetic interference.

Never try to dismantle the wireless modem yourself. There are no components inside

the wireless modem that can be serviced by the user. If you attempt to dismantle the

wireless modem, you may invalidate the warranty.

To protect the power supply cables and meet the fire safety requirements, it is

recommended that the electrical circuits are supplied with a power regulator. The

power regulator should be placed as close to the terminals of the power supply as

possible.

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Do not connect any incompatible component or product to the module.

Sony Ericsson does not warrant against defects, malfunction, non-

conformities or deviation caused by the connection of incompatible

components or products to the GS64.

The connection/disconnection method for the development board is by means of the

DC power jack. For this reason, the mains supply should be situated close to the

development board and be easily accessible.

7.2 SIM Card

Before handling any SIM card, users should ensure that they are not charged with

static electricity. Use proper precautions to avoid electrostatic discharges. The

wireless modem must be switched off before the SIM card is installed or uninstalled.

When the SIM card holder is opened, the SIM card connections lie exposed under the

SIM card holder. CAUTION: Do not touch these connections! Failure to heed this

advice may release an electrical discharge that could damage the wireless modem or

the SIM card.

When designing applications, the SIM card’s accessibility should be taken into

account. Sony Ericsson recommends that users protect SIM card access by a PIN

code. This will ensure that the SIM card cannot be used by an unauthorized person.

7.3 Antenna

If the antenna is to be mounted outside, consider the risk of lightning.

Always follow the instructions provided by the antenna manufacturer.

Never connect more than one wireless modem to a single antenna.

The wireless modem can be damaged by radio frequency energy from the transmitter

of another adjacent wireless transmitter.

NOTE

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Like any mobile station, the antenna of the wireless modem emits radio frequency

energy. To avoid EMI (electromagnetic interference), users must determine whether

the application itself, or equipment in the application’s proximity, requires further

protection against radio emission and the disturbances it might cause. Protection is

secured either by shielding the surrounding electronics or by moving the antenna

away from the electronics and the external signals cable.

The wireless modem and antenna may be damaged if either come into contact with

ground potentials other than the one in the users application. Beware, ground

potential are not always what they appear to be.

In the final application, the antenna must be positioned more than 20 cm away from

human bodies. When this rule cannot be applied, the application designer is

responsible for providing the SAR measurement test report and declaration.

Even if SAR measurements are not required, it is considered good practice to insert a

warning in any manual produced, indicating it is a radio product and that care should

be taken.

7.4 Installation of the Wireless modem

7.4.1 Where to Install the Wireless modem

There are several conditions which need to be taken into consideration when

designing your application as they might affect the wireless modem and its function.

They are:

7.4.1.1 Environmental Conditions

The wireless modem must be installed so that the environmental conditions stated in

the Technical Data chapter, such as temperature, humidity and vibration are satisfied.

Additionally, the electrical specifications in the Technical Data section must not be

exceeded.

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7.4.1.2 Signal Strength

The wireless modem has to be placed in a way that ensures sufficient signal strength.

To improve signal strength, the antenna can be moved to another position. Signal

strength may depend on how close the wireless modem is to a radio base station. You

must ensure that the location at which you intend to use the wireless modem, is

within the network coverage area.

Degradation in signal strength can be the result of a disturbance from another

source, for example an electronic device in the immediate vicinity. More information

about possible communication disturbances can be found in section 8.3.5, page 59.

When an application is completed, you can verify signal strength by issuing the AT

command AT+CSQ or AT*E2EMM. See the AT Commands Manual for further details.

Before installing the wireless modem, use an ordinary mobile telephone

to check a possible location for it. In determining the location for the

radio device and antenna, you should consider signal strength as well

as cable length.

7.4.1.3 Connection of Components to Wireless modem

The integrator is responsible for the final integrated system. Incorrectly designed or

installed, external components may cause radiation limits to be exceeded. For

instance, improperly made connections or improperly installed antennas can disturb

the network and lead to malfunctions in the wireless modem or equipment.

7.4.1.4 Network and Subscription

Before the integrator’s application is used, the user must ensure that their chosen

network provides the necessary telecommunication services. Integrators should

contact their service provider to obtain the necessary information.

Integrators intending to use SMS in the application should ensure this is included in

their (voice) subscription.

Similarly, integrators intending to use GPRS for data services should also ensure that

this service is available on their network and in their account plan.

TIP

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Users should consider the choice of the supplementary services described in section

2.3.2Short Message Service, page 16.

7.4.2 How to Install the Wireless modem

7.4.2.1 Power Supply

Use a high-quality power supply cable with low resistance. This ensures that the

voltages at the connector pins are within the allowed range, even during the

maximum peak current. An electrolytic capacitor should be placed close to the power

supply pins of the wireless modem to supply the peak currents during burst

transmission. See 5.6 Regulated Power Supply Input (VCC), page 38.

7.4.2.2 Grounds

A ground connection is provided at the mounting hole next to the RF connector on

the wireless modem (see Figure 5.1, page 19). Connect this ground point to the GND

pins of the wireless modem by the shortest, low impedance path possible. The

purpose of this connection is to allow any ESD picked up by the antenna to bypass the

wireless modem’s internal ground path.

Note! It is recommended that you use a cable with a maximum resistance of 5

milliohm for the ground connection.

Note! AREF and GND are connected at a single point inside the wireless modem. They

must not be joined together in your application.

7.4.2.3 Audio

Use a coupling capacitor in AUXI line if the application does not use the wireless

modem’s bias voltage. See also Figure 5.10-1 Microphone connections to the

wireless modem, page 54.

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7.4.2.4 Software Upgrade

There are two ways of updating the firmware in the GS64. There is a web based tool

that can access a Sony Ericsson server from where SW can be downloaded. There is

also an Updater, which is a local application that downloads an image provided by

SEMC.

7.5 Antenna

7.5.1 General

The antenna is the component in the users system that maintains the radio link

between the network and the wireless modem. Since the antenna transmits and

receives electromagnetic energy, its efficient function will depend on:

the type of antenna (for example, circular or directional)

the placement of the antenna

communication disturbances in the vicinity in which the antenna operates

In the sections below, issues concerning antenna type, antenna placement, antenna

cable, and possible communication disturbances are addressed.

In any event, users should contact their local antenna manufacturer for additional

information concerning antenna type, cables, connectors, antenna placement, and the

surrounding area. Users should also determine whether the antenna needs to be

grounded or not. Usually, a local antenna manufacturer should be able to design a

special antenna suitable for the integrators application and environment.

7.5.2 Antenna Type

Users should ensure that they choose the right type of antenna for the wireless

modem.

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The antenna must be designed for the frequency bands deployed in the regions that

the wireless modem is being used. For fixed locations this may be dual bands (for

example E-GSM900/GSM1800 in Europe; GSM850/GSM1900 in North America). For

applications which are mobile, users should consider whether three or all four GSM

bands could be encountered.

Other factors in choosing antenna are equally important:

the impedance of the antenna and antenna cable must be 50 ohms at all frequencies

being used

the antenna output-power handling capability must be a minimum of 2 W

the antenna VSWR value should be less than 3:1 to avoid damage to the radio device

7.5.3 Antenna Placement

The antenna should be placed away from electronic devices or other antennas. The

recommended minimum distance between adjacent antennas, operating in a similar

radio frequency band, is at least 50 cm.

If signal strength is weak, it is useful to face a directional antenna at the closest radio

base station. This can increase the strength of the signal received by the wireless

modem.

The wireless modem’s peak output power can reach 2 W. RF field strength varies with

antenna type and distance. At 10 cm from the antenna the field strength may be up

to 70 V/m and at 1m it will have reduced to 7 V/m.

In general, CE-marked products for residential and commercial areas, and light

industry can withstand a minimum of 3 V/m.

7.5.4 The Antenna Cable

Use 50 ohm impedance low-loss cable and high-quality 50 ohm impedance

connectors (frequency range up to at least 2 GHz) to avoid RF losses. Ensure that the

antenna cable is as short as possible.

The effectiveness of the antenna, cable and connectors is determined by their quality.

All connectors, adaptors and cables should be of the highest quality, lowest loss,

lowest VSWR rating that is affordable to the user.

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Minimize the use of extension cables, connectors and adapters. Each additional

cable, connector or adapter will result in additional loss of signal power.

7.5.5 Possible Communication Disturbances

Communication disturbances can adversely effect the quality of wireless links,

including the following causes:

Noise can be caused by electronic devices and radio transmitters.

Path-loss occurs as the strength of the received signal steadily decreases in

proportion to the distance from the transmitter.

Shadowing is a form of environmental attenuation of radio signals caused by hills,

buildings, trees or even vehicles. This can be a particular problem inside buildings,

especially if the walls are thick and reinforced.

Multi-path fading is a sudden decrease or increase in the signal strength. This is the

result of interference caused when direct and reflected signals reach the antenna

simultaneously. Surfaces such as buildings, streets, vehicles, etc., can reflect signals.

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8 Embedded Applications

The wireless modem has the capability to store and run customer written code in the

form of a script during the processor’s idle time, through the use of an on board

interpreter.

8.1 Features

Main features of embedded applications are as follows:

C based scripting language (Sony Ericsson specific)

Over the air upgrade of scripts (NOT GSM software)

Library of intrinsic functions

2 scripts can be stored in the memory at any time (but only 1 can be active)

8.2 Implementation

The wireless modem has up to 256k of space available for storage of two scripts in

the scripting language and TBD of operating RAM. Structures included in this

language are:

If - else statements

While loops

For loops

All hardware interfaces that are normally available to the wireless modem through the

AT commands are available to the embedded application.

Further drivers have been written such as M bus, keypad, SPI and I2C for use by the

embedded application (EA) through the use of the I/O pins.

8.2.1 Limitations

Since the wireless modem is processing the script using its own memory, limitations

are placed onto the scripts that are run.

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A direct comparison cannot be made to a fully compiled C program in terms of size,

but a gauge of script size is that if each line were 128 characters long in the script

then the script could be about 16,000 lines long.

Processing power is something that needs to be considered as the script is run as a

low priority process within the software. However, controller mode stops GSM

operation and provides all the processing power for the script to be run. See the

M2mpower Application Guide

for more details.

Code cannot be ported directly from an existing application and loaded directly onto

the wireless modem. It must be re-written in the Sony Ericsson Mobile script

language so that the wireless modem interpreter can function correctly.

8.2.2 M2mpower IDE (Integrated Development Environment)

The IDE is a Windows based package which allows the user to write, simulate, debug

and download the application into a wireless modem with the embedded application

(EA) software. The standard version is designed to run on Windows XP and 2000.

The M2mpower Application Guide is available for implementing applications using the

developer’s kit and the embedded application (EA) functionality.

This is a required package to be able to implement an embedded application (EA).

For further information please contact Sony Ericsson Mobile Communications

customer support.

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9 TCP/IP Stack

An on board IP/TCP/UDP stack has been integrated into the software negating the

need for the customer to implement one in their own code base.

This is accessible by using an embedded applications (see section 9) using intrinsic

functions or through AT commands.

9.1 Implementation

The following types of commands allow various functions:

Open/closing IP connection - Negotiates/closes a dynamic IP address with the web

server.

Send/Receive TCP packets - Performs all TCP operations to send and receive packets.

Send/Receive UDP packets - Performs all UDP operations to send and receive packets.

Resolve URL to an IP address - Similar to nslookup command in DOS When the unit is

set up and controlled using the embedded applications

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10 Technical Data

10.1 Mechanical Specifications

Refer to Figure 4.2-1 Dimensions of the Wireless modem for reference to mechanical

features.

Mechanical Feature Variant Value

Length 37 mm

Width 30 mm

without SIM holder 2.67 mm

Thickness (see illustration below) with SIM holder 5.27 mm

Weight

Figure 10.1-1 GS64 module with thickness dimensions

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10.2 Power supply voltage, normal operation

Parameter Mode Limit

Nominal 3.6 V

Min 3.2 V

Max 4.5 V

Absolute maximum limit -0.3V to 6.5V

VCC Supply voltage

Maximum supply ripple <100mV @<200kHz

<20mV @>200kHz

Maximum allowable voltage drop Transmission burst 200mV

2250 mA (peak)

Maximum current consumed Full power (2W) transmit 2100 mA (avg)

Stresses in excess of the absolute maximum limits can cause

permanent damage to the device. These are absolute stress ratings

only. Functional operation of the device is not implied at these or any

other conditions in excess of those given in the operational sections of

the data sheet. Exposure to absolute maximum ratings for extended

periods can adversely affect device reliability.

10.3 Radio specifications

Feature GSM850 E-GSM900 GSM1800 GSM1900

Frequency range (MHz) 824-894 880-960 1710-1880 1850-1990

Maximum power 33dBm (2W) 33dBm (2W) 30dBm (1W) 30dBm (1W)

Antenna impedance 50 ohms

10.4 SIM card

Parameter 1.8V 3.0V 5.0V

External SIM support Yes Yes No

Integrated SIM support (optional) Yes Yes No

WARNING

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10.5 Environmental Specification

Test Case Test Summary Ref Standard

Heat Test

Temp: max storage

Humidity: nominal

Duration: 16 hours

IEC 60068-2-2

Cold Test

Temp: min storage

Duration: 16 hours IEC 60068-2-1

Temperature Cycling

Temp (low) : min storage

Temp (high) : max storage

2 hrs dwell at each extreme

6 hrs transition between temps

Duration: 5 cycles x 16 hours

(80 hrs total)

IEC 60068-2-14

Thermal Shock Test

Temp (low) : min storage

Temp (high) : max storage

6 min dwell at each extreme

0.5 to 3 min transition

Duration: 30 cycles (Group 2,3)

IEC 60068-2-14

Moist Heat Cyclic Test

Temp (low) : nominal ambient

Temp (high) : max operating

Humidity (high) : 95% ±5% RH

Humidity (low) : 93% ±5% RH

9 hr dwell at each temperature

3 hr transition between temps

Duration: 6 cycles x 24 hours

(144 hrs total)

IEC 60068-2-30

Operational Durability

SIM insertion : 500 cycles

System connector : 10,000 cycles

Flips/Hinges : 1,000 cycles

RF connector : 5,000

1/52 41-FEA 202 8370

Free Fall Test

1m drop height on to concrete

- all sides

- all faces

- all corners

- any extended features

IEC 60068-2-32 Test Ed

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Test Case Test Summary Ref Standard

Sinusoidal Vibration

Freq: 10-60 Hz, constant

displacement ±0.35mm

Freq : 60-500 Hz, constant

acceleration  5 g

Sweep velocity: 1 oct/min

Sweeps: 5 per axis

Axis: 3 axis (x, y, z) per device

IEC 60068-2-6

Random Vibration

Power Spectral Density:

5 Hz 0.10 m2/s3

12 Hz 2.20 m2/s3

20 Hz 2.20 m2/s3

200 Hz 0.04 m2/s3

500 Hz 0.04 m2/s3

Duration : 2 hrs each axis

Axis : 3 axis (x, y, z) per device

IEC 60068-2-34

Mechanical Shock Test

Pulse shape: Half-sine

Amplitude: 30 g±15%

Duration: 6 ms

Axis: ±x, ±y, ±z

No. shocks: 3 each direction

(18 total)

IEC 60068-2-27

Test Ea

Mixed Plug-in

Connector

Mechanical force :

50 N in ±x, -y, ±z directions

100 N in +y (mating axis)

1/152 41-FEA 202 8370

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11 Regulatory Notices

The GS64 described in this manual conforms to the Radio and Telecommunications Terminal

Equipment (R&TTE) directive 99/5/EC with requirements covering EMC directive 89/336/EEC

and Low Voltage directive 73/23/EEC. The product fulfils the requirements according to

3GPP TS 51.010-1, EN 301 489-7 and EN60950.

This device complies with Part 15 of the FCC rules. Operation is subject to the following two

conditions:

(1) This device may not cause harmful interference, and

(2) The device must accept any interference received, including interference that may cause

undesired operation.

The GS64 modular transmitter is labelled with its own FCC ID number. In the normal method

of mounting the GS64 in a customer application the label is not visible to an end-user.

Similarly, the customer application itself may obscure the GS64 module entirely. If the FCC

ID is not visible when the module is installed inside another device, then the outside of the

device into which the module is installed must display a label referring to the enclosed

module. This exterior label can use wording such as the following: “Contains Transmitter

Module FCC ID: PY7BC051022” or “Contains FCC ID: PY7BC051022”. Any similar wording

that expresses the same meaning may be used.

FCC ID PY7BC051022 This product has not yet received GCF or FCC approval

IC: 4170B-BC051022

Append Declaration

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Developers Kit

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12 Introduction to the Universal Developer’s Kit

The Sony Ericsson M2M universal developer’s kit (UDK) is designed to get you started

quickly. It contains all the hardware you will need to begin the development of an

application.

The only items you need to provide are; a wireless modem, a computer, a SIM card

with a network subscription, and a knowledge of programming with AT commands.

The main hardware of the UDK is an open board onto which you plug the wireless

modem, using an adaptor board where necessary. Connectors, switches, jumpers

and SIM card holder are provided to allow you to configure and access all the

functions of the radio device.

Two version of the UDK exists; the first-generation UDK is designed for legacy M2M

products available during 2003 to 2005; a second-generation Universal Developers

Kit Mk 2 is available for M2M products from 2006 onwards. Components, adaptor

boards and peripheral interfaces are not inter-changeable between the two UDK

products.

A separate user manual describes the set-up and use of the UDK. This can be

downloaded from the Sony Ericsson M2M Extranet web pages or obtained from your

local sales support representative upon request.

Sony BC051022 Quadband GPRS Module User Manual

Sony Mobile Communications Inc Quadband GPRS Module

User Manual

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