Sony Ericsson GM48, GM47 User Manual

GM47/GM48

Product Photo/Illustration

The product 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.

SAR statement: This product is intended to be used with the antenna or other radiating element at least 20cm away from any part of the human body.

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 (April 2002) Second edition (August 2002) Third edition (January 2003)

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.

Printed in UK

Part 1: Overview................................................................................................. 11

1. Introduction............................................................................................................ 13

1.1 Target Users ......................................................................................... 13

1.2 Prerequisites ......................................................................................... 13

1.3 Manual Structure ......................................................................................... 13

2. GM47/GM48 Modules ........................................................................................... 15

2.1 About the GM47/GM48 Family .................................................................. 15

2.2 GM47 in a Communication System............................................................. 15

2.3 Features ......................................................................................... 17

2.3.1 Types of Mobile Station .................................................................. 17

2.3.2 Short Message Service .................................................................... 18

2.3.3 Voice Calls...................................................................................... 18

2.3.4 Data................................................................................................. 18

2.3.5 SIM Card......................................................................................... 19

2.3.6 Average Power Consumption ......................................................... 19

2.3.7 Other Features ................................................................................ 19

2.4 Service and Support ..................................................................................... 19

2.4.1 Web Pages....................................................................................... 19

2.4.2 Integrator’s Manual........................................................................ 19

2.4.3 Developer’s Kit ...............................................................................20

2.5 Precautions ......................................................................................... 20

3. Abbreviations .........................................................................................................21

Part 2: Developer’s Kit ....................................................................................... 23

1. Introduction............................................................................................................ 25

1.1 Overview ......................................................................................... 25

1.2 Contents of the Kit ....................................................................................... 25

1.3 General Functioning of the Kit .................................................................... 26

2. Using the Developer’s Kit...................................................................................... 29

2.1 Start up Check List....................................................................................... 30

2.2 Developer’s Board Overlay.......................................................................... 31

2.3 Jumpers, Switches and Connectors.............................................................. 32

2.4 System Connector Pin Assignments ............................................................ 36

Part 3: Integrating the Module............................................................................ 37

1. Mechanical Description ......................................................................................... 39

1.1 Interface Description.................................................................................... 39

1.2 Physical Dimensions .................................................................................... 40

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2. System Connector Interface ..................................................................................41

2.1 Overview .......................................................................................... 41

2.2 General Electrical and Logical Characteristics ............................................ 44

2.2.1 General Protection Requirements ...................................................44

2.3 Grounds .......................................................................................... 45

2.3.1 Analogue Ground - AGND ..............................................................45

2.3.2 Digital Ground - DGND..................................................................45

2.4 VCC - Regulated Power Supply Input ......................................................... 45

2.5 ON/OFF and External Power Signal ............................................................ 46

2.5.1 Switching the module ON and OFF ................................................46

2.5.2 VIO - 2.75V Supply..........................................................................47

2.6 Analogue Audio .......................................................................................... 48

2.6.1 Audio To Mobile Station - ATMS ....................................................48

2.6.2 Audio From Mobile Station - AFMS ...............................................49

2.6.3 Microphone Signals.........................................................................50

2.6.4 Speaker Signals ...............................................................................51

2.7 PCM Digital Audio....................................................................................... 52

2.7.1 PCM Data Format...........................................................................53

2.8 Serial Data Interfaces.................................................................................... 55

2.8.1 UART1 (RS232) - RD, TD, RTS, CTS, DTR, DCD and RI..............55

2.8.2 Serial Data Signals - RD, TD..........................................................56

2.8.3 Control Signals - RTS, CTS, DTR, DCD, RI ...................................56

2.8.4 UART2 - TD2, RD2 .........................................................................58

2.8.5 UART3 - TD3, RD3 (designated for future use)..............................59

2.9 SIM Card Related Signals ............................................................................ 59

2.9.1 SIM Detection - SIMPRESENCE ....................................................60

2.10 Service/Programming................................................................................... 61

2.11 Buzzer .......................................................................................... 61

2.12 LED .......................................................................................... 61

2.13 General Purpose Digital I/O Ports................................................................ 62

2.14 General Purpose Analogue I/O Ports............................................................ 63

2.14.1 Digital to Analogue Converter - DAC.............................................63

2.14.2 Analogue to Digital Converters 1, 2 and 3 - ADCx ........................64

2.15 External I 2C Serial Control Bus .................................................................. 65

2.16 TX_ON - Burst Transmission....................................................................... 65

2.17 Real Time Clock .......................................................................................... 66

3. Antenna Connector ................................................................................................68

4. Hints for Integrating the Module..........................................................................69

4.1 Safety Advice and Precautions ..................................................................... 69

4.1.1 General............................................................................................69

4.1.2 SIM Card .........................................................................................69

4.1.3 Antenna............................................................................................70

4.2 Installation of the Module............................................................................. 70

4.2.1 Where to Install the Module ............................................................70

4.2.2 How to Install the Module...............................................................71

4.3 Antenna .......................................................................................... 72

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4.3.1 General ........................................................................................... 72

4.3.2 Antenna Type .................................................................................. 73

4.3.3 Antenna Placement .........................................................................73

4.3.4 The Antenna Cable.......................................................................... 73

4.3.5 Possible Communication Disturbances .......................................... 74

5. Technical Data........................................................................................................ 75

6. Declaration of Conformity .................................................................................... 77

7. FCC Certificate ...................................................................................................... 78

Part 4: Using AT Commands.............................................................................. 79

1. Introduction to AT Commands ............................................................................81

1.1 Overview ......................................................................................... 81

1.2 Syntax Description....................................................................................... 81

1.2.1 Conventions..................................................................................... 81

1.2.2 AT Command Syntax....................................................................... 82

1.2.3 AT Response Syntax ........................................................................84

1.3 Error Codes ......................................................................................... 85

1.3.1 +CME ERROR (Mobile Equipment Error Code)........................... 85

1.3.2 +CMS ERROR (Message Service Failure Result Code) ................ 86

1.4 Examples on How to Use the AT Commands ............................................ 87

1.5 SMS Text Mode ......................................................................................... 87

1.6 GPRS Communication................................................................................. 89

2. Call Control ............................................................................................................ 91

2.1 AT+CPIN PIN Control...................................................................... 91

2.2 ATA Answer Incoming Call..................................................... 91

2.3 ATD Dial .................................................................................. 92

2.4 ATH Hang up............................................................................ 94

2.5 ATL Monitor Speaker Loudness.............................................. 94

2.6 ATO Return to Online Data Mode............................................ 95

2.7 ATP Select Pulse Dialling........................................................ 95

2.8 ATT Select Tone Dialling ........................................................ 95

2.9 ATX Call Progress Monitoring Control ................................... 96

2.10 AT+CHUP Hang up Call .................................................................... 96

2.11 AT+CMOD Call Mode ........................................................................ 97

2.12 AT+CVHU Voice Hang-Up................................................................ 98

2.13 AT+VTS DTMF and Tone Generation ........................................... 98

3. Control and Status ...............................................................................................101

3.1 ATQ Result Code Suppression ............................................... 101

3.2 ATS0 Automatic Answer Control............................................ 101

3.3 ATS2 Escape Sequence Character ........................................... 102

3.4 ATS3 Command Line Termination Character ......................... 102

3.5 ATS4 Response Formatting Character..................................... 103

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3.6 ATS5 Command Line Editing Character (BACKSPACE) ...... 104

3.7 ATS6 Blind Dial Delay Control ............................................... 104

3.8 ATS7 Connection Completion Timeout................................... 105

3.9 ATS8 Comma Dial Modifier Delay Control ............................ 105

3.10 ATS10 Automatic Disconnect Delay Control ............................ 106

3.11 AT*ECAM Ericsson Call Monitoring ............................................... 106

3.12 AT*EDST Ericsson Daylight Saving Time ..................................... 108

3.13 AT*EMAR Ericsson Master Reset .................................................... 109

3.14 AT*EPEE Ericsson Pin Event ......................................................... 110

3.15 AT*ESMM Ericsson Settings Minute Minder................................... 110

3.16 AT+CALA Set Alarm ....................................................................... 111

3.17 AT+CALD Alarm Delete .................................................................. 112

3.18 AT+CCLK Set Clock and Date......................................................... 113

3.19 AT+CEER Extended Error Report ................................................... 114

3.20 AT+CFUN Set Phone Functionality ................................................. 114

3.21 AT+CIND Indicator Control ............................................................ 115

3.22 AT+CLAC List all available AT Commands.................................... 116

3.23 AT+CMEE Mobile Equipment Error ................................................ 116

3.24 AT+CMER Mobile Equipment Event Reporting .............................. 117

3.25 AT+CPAS Phone Activity Status..................................................... 118

3.26 AT+CPIN PIN Control .................................................................... 120

3.27 AT+CPWD Change Password ........................................................... 122

3.28 AT+CR Service Reporting Control.............................................. 124

3.29 AT+CRC Cellular Result Code ...................................................... 124

3.30 AT+CSAS Save Settings .................................................................. 125

3.31 AT+CSQ Signal Strength ............................................................... 126

3.32 AT+CTZU Automatic Time Zone Update........................................ 127

4. Audio......................................................................................................................129

4.1 AT*E2EAMS Ericsson M2M Audio Profile Modification ................... 129

4.2 AT*E2APR M2M Audio Profile Manipulation ................................. 135

4.3 AT*EALR Ericsson Audio Line Request......................................... 137

4.4 AT*EAMS Ericsson Audio Mode Selection..................................... 138

4.5 AT*EARS Ericsson Audio Ring Signal ........................................... 139

4.6 AT*E2PHFB Portable Handsfree Button Sense Enable....................... 140

4.7 AT*ELAM Ericsson Local Audio Mode........................................... 140

4.8 AT*EMIC Ericsson Microphone Mode ........................................... 141

4.9 AT*EMIR Ericsson Music Mute Indication Request ...................... 141

4.10 AT*EPRR Ericsson Personal Ring Type Read ................................ 142

4.11 AT*EPRW Ericsson Personal Ringtype Write ................................. 143

4.12 AT*ERIL Ericsson Ring Level Set ................................................. 145

4.13 AT*ERIN Ericsson Ring Set ........................................................... 146

4.14 AT*ERIP Ericsson Ring Signal Playback Command..................... 147

4.15 AT*ESMA Ericsson Set Message Alert Sound ................................ 148

4.16 AT*ESOM Ericsson Settings Own Melody ...................................... 148

4.17 AT*EXVC Ericsson Set External Volume Control .......................... 150

4.18 ATM Monitor Speaker Control................................................ 151

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5. Data - CSD/HSCSD.............................................................................................. 153

5.1 AT+CBST Select Bearer Service Type............................................ 153

5.2 AT+CRLP Radio Link Protocol....................................................... 155

6. Data - GPRS .........................................................................................................157

6.1 AT+CGACT PDP Context Activate or Deactivate ............................. 157

6.2 AT+CGATT GPRS Attach or Detach ................................................. 158

6.3 AT+CGDATA Enter Data State ............................................................. 159

6.4 AT+CGDCONT Define PDP Context ...................................................... 160

6.5 AT+CGEREP GPRS Event Reporting.................................................. 162

6.6 AT+CGPADDR Show PDP Address........................................................ 163

6.7 AT+CGQMIN Quality of Service Profile (Minimum Acceptable) ....... 164

6.8 AT+CGQREQ Quality of Service Profile (Requested).......................... 166

6.9 AT+CGREG GPRS Network Registration Status ............................... 169

6.10 AT+CGSMS Select Service for MO SMS Messages .......................... 170

7. Data - HSCSD....................................................................................................... 171

7.1 AT+CHSC HSCSD Current Call Parameters ................................... 171

7.2 AT+CHSD HSCSD Device Parameters ........................................... 172

7.3 AT+CHSN HSCSD Non Transparent Call Configuration ............... 173

7.4 AT+CHSR HSCSD Parameters Report ............................................ 174

7.5 AT+CHSU HSCSD Automatic User Initiated Upgrading................ 175

8. GPS Interoperability ........................................................................................... 177

8.1 AT*EENMEA NMEA (GPS) Mode on UART2 ................................... 177

8.2 AT*E2NMPR Ericsson M2M Set NMEA (GPS) Port Rate.................. 178

9. Fax ......................................................................................................................... 181

9.1 AT*E2FAX Ericsson M2M Fax Comm. Baud Rate Modification.... 181

9.2 Low Level Fax Commands ........................................................................ 182

10. Identification ........................................................................................................183

10.1 AT Attention Command....................................................... 183

10.2 AT&F Set to Factory Defined Configuration............................ 183

10.3 AT&W Store User Profile .......................................................... 183

10.4 AT* List all Supported AT Commands ................................. 184

10.5 AT+CGMI Read MS Manufacturer Identification ........................... 184

10.6 AT+CGMM Read MS Model Identification ...................................... 184

10.7 AT+CGMR Read MS Revision Identification................................... 185

10.8 AT+CGSN Read MS Product Serial Number Identification ............ 186

10.9 AT+GMI Read Manufacturer Identification.................................. 186

10.10 AT+GMM Read Model Identification ............................................. 187

10.11 AT+GMR Read Revision Identification ......................................... 187

10.12 ATI Identification Information.............................................. 188

11. Input/Output ........................................................................................................ 191

11.1 AT*E2IO Ericsson M2M Input/Output Read/Write ...................... 191

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12. Interface ................................................................................................................197

12.1 AT+CPIN PIN Control .................................................................... 197

12.2 AT&C Circuit 109 (DCD) Control ............................................ 197

12.3 AT&D Circuit 108 (DTR) Response.......................................... 197

12.4 AT&S Circuit 107 (DSR) Response.......................................... 197

12.5 AT+WS46 Mode Selection............................................................... 198

12.6 ATE Command Echo.............................................................. 198

12.7 ATV DCE Response Format................................................... 199

12.8 ATZ Reset to Default Configuration ...................................... 200

12.9 AT+CMUX Switch to 07.10 Multiplex Protocol ............................... 200

12.10 AT+CRES Restore SMS Settings..................................................... 202

12.11 AT+ICF Cable Interface Character Format .................................. 202

12.12 AT+IFC DTE-DCE Local Flow Control ...................................... 203

12.13 AT+ILRR Cable Interface Local Rate Reporting............................ 204

12.14 AT+IPR Cable Interface Port Command...................................... 204

12.15 AT*E2SPI Serial Peripheral Interface.............................................. 205

12.16 AT*E2ESC M2M Escape Sequence Guard Time.............................. 207

13. Network .................................................................................................................209

13.1 AT*E2CD Ericsson M2M Cell Description..................................... 209

13.2 AT*E2EMM Ericsson M2M Engineering Monitoring Mode.............. 211

13.3 AT*E2SPN M2M Service Provider Indication.................................. 217

13.4 AT*EALS Ericsson Request ALS Status......................................... 217

13.5 AT*ECSP Ericsson Customer Service Profile................................. 218

13.6 AT*EPNR Ericsson Read SIM Preferred Network.......................... 219

13.7 AT*EPNW Ericsson Write SIM Preferred Network......................... 220

13.8 AT*E2SSN Ericsson M2M SIM Serial Number ............................... 221

13.9 AT*ESLN Ericsson Set Line Name ................................................. 222

13.10 AT+CIMI Subscriber Identification ................................................ 223

13.11 AT+CLCK Facility Lock .................................................................. 223

13.12 AT+CNUM Subscriber Number......................................................... 225

13.13 AT+COLP Connected Line Identification Presentation................... 226

13.14 AT+COPS Operator Selection.......................................................... 228

13.15 AT+CREG Network Registration ..................................................... 229

13.16 AT*ECPI Ciphering Indicator ........................................................ 230

13.17 AT*E2NBTS Ericsson M2M Neighbour BTS ..................................... 232

14. Phonebook.............................................................................................................235

14.1 AT*E2PBCS Ericsson M2M Phonebook Check Sum ......................... 235

14.2 AT*ESAG Ericsson Add to Group................................................... 235

14.3 AT*ESCG Ericsson Create Group ................................................... 236

14.4 AT*ESCN Ericsson Set Credit Card Number .................................. 237

14.5 AT*ESDG Ericsson Delete Group ................................................... 239

14.6 AT*ESDI Ericsson Delete Group Item ........................................... 239

14.7 AT*ESGR Ericsson Group Read...................................................... 240

14.8 AT*EGIR Ericsson Group Item Read ............................................. 240

14.9 AT*ESIL Ericsson Silence Command............................................ 241

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14.10 AT*ESNU Ericsson Settings Number.............................................. 242

14.11 AT+CPBF Phonebook Find ............................................................. 243

14.12 AT+CPBR Phonebook Read ............................................................ 243

14.13 AT+CPBS Phone Storage ................................................................ 245

14.14 AT+CPBW Phonebook Write ........................................................... 246

14.15 AT*ECAW Ericsson Callers Allowed Write ................................... 247

14.16 AT*ECAR Ericsson Callers Allowed Read ..................................... 248

15. Short Message Services - Point to Point............................................................. 251

15.1 AT+CPIN PIN Control.................................................................... 251

15.2 AT+CGSMS Select Service for MO SMS Messages.......................... 251

15.3 AT+CPMS Preferred Message Storage ............................................ 251

15.4 AT+CSCA Service Centre Address.................................................. 253

15.5 AT+CMGF Message Format............................................................. 254

15.6 AT+CMGW Write Message to Memory ............................................ 255

15.7 AT+CMGS Send Message ................................................................ 257

15.8 AT+CMSS Send From Storage ........................................................ 260

15.9 AT+CMGC Send Command.............................................................. 262

15.10 AT+CNMI New Message Indications to TE.................................... 264

15.11 AT+CMGR Read Message ................................................................ 268

15.12 AT+CMGL List Message .................................................................. 274

15.13 AT+CMGD Delete Message.............................................................. 280

15.14 AT+CSDH Show Text Mode Parameters ......................................... 280

15.15 AT+CSMP Set Text Mode Parameters ............................................. 281

15.16 AT+CSCS Select Character Set ....................................................... 282

15.17 AT+CSMS Select Message Service.................................................. 283

15.18 AT*E2SMSRI Ring indicator for SMS.................................................. 284

16. Short Message Services - Cell Broadcast........................................................... 287

16.1 AT+CNMI New Message Indications to TE.................................... 287

16.2 AT+CSCB Select Cell Broadcast Message Type............................. 287

17. SIM Application Toolkit...................................................................................... 289

17.1 AT+CPIN PIN Control.................................................................... 289

17.2 AT*E2STKS SIM Application Toolkit Settings.................................. 289

17.3 AT*E2STKD M2M STK Display Text................................................ 290

17.4 AT*E2STKG M2M STK Get Inkey..................................................... 291

17.5 AT*E2STKI M2M STK Get Input ..................................................... 293

17.6 AT*E2STKL M2M STK Select Item................................................... 296

17.7 AT*E2STKM M2M STK Set Up Menu ............................................... 298

17.8 AT*E2STKN M2M STK Envelope (Menu Selection)......................... 300

17.9 AT*E2STKC M2M STK Set Up Call .................................................. 300

17.10 *E2STKE STK Send Short Message .............................................. 302

17.11 *E2STKP STK Send SS ................................................................. 303

17.12 *E2STKU STK Send USSD............................................................ 304

17.13 *E2STKR STK Refresh .................................................................. 305

17.14 AT*E2STKTO SIM Application Toolkit Settings.................................. 305

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18. Supplementary Services.......................................................................................307

18.1 AT+CPIN PIN Control .................................................................... 307

18.2 AT+CACM Accumulated Call Meter ................................................ 307

18.3 AT+CAMM Accumulated Call Meter Maximum............................... 308

18.4 AT+CAOC Advice of Charge ........................................................... 309

18.5 AT+CPUC Price Per Unit and Currency Table ................................ 310

18.6 AT*EDIF Ericsson Divert Function................................................ 311

18.7 AT*EIPS Identity Presentation Set ................................................ 312

18.8 AT*ELIN Ericsson Line Set............................................................ 313

18.9 AT*E2SSD M2M Supplementary Service Dispatch ......................... 313

18.10 AT*E2SSI M2M Supplementary Service Indications...................... 314

18.11 AT+CCFC Call Forwarding number and Conditions....................... 319

18.12 AT+CCWA Call Waiting ................................................................... 321

18.13 AT+CHLD Call Hold and Multiparty ............................................... 323

18.14 AT+CLIP Calling Line Identification ............................................. 325

18.15 AT+CLIR Calling Line Identification Restriction........................... 326

18.16 AT+CSSN Supplementary Service Notification .............................. 328

18.17 AT+CUSD Unstructured Supplementary Service Data .................... 330

19. Alphabetical Listing of AT Commands..............................................................333

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Part 1: Overview

Product Photo/Illustration

1. Introduction

1.1 Target Users

GM47 and GM48 modules are designed to be integrated into machineto-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 GM47 or GM48 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 four parts:

Part 1- Overview

This section provides a broad overview of the GM47/GM48 family and includes a list of abbreviations used in the manual.

Part 2 - Developer’s Kit

This section lists the contents of the whole development kit and provides the information to setup and use the equipment.

Part 3 - Integrating the Module

This section describes each of the signals available on the GM47/GM48 modules, along with mechanical information. The section also provides you with design guidelines and explains what is needed to commercialise an application from a regulatory point of view.

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Part 4 - Using AT Commands

This section lists all the AT commands relevant to the GM47 and GM48, including their required parameters. The purpose of part 4 is to give you detailed information on the function of the AT command set.

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2. GM47/GM48 MODULES

2. GM47/GM48 Modules

2.1 About the GM47/GM48 Family

Two modules make up the family; GM47 and GM48, for use in the 900/1800MHz and 850/1900MHz GSM bands respectively.

Note! As the characteristics of the modules are quite similar, this manual only

refers to the GM48 where a difference exists; by default all other references are to the GM47.

The products belong to a new generation of Sony Ericsson modules, and are intended to be used in machine-to-machine applications and man-tomachine applications. They are used when there is a need to send and receive data (by SMS, CSD, HSCSD, or GPRS), and make voice calls over the GSM network.

GM47 modules are not “stand alone” devices; they are used as the engine in an application created by the customer. A typical application, involves a micro-controller and GM47 module, in which the microcontroller sends AT commands to the module via an RS232 communications link.

2.2 GM47 in a Communication System

Figure 2.1 illustrates the main blocks of a wireless communication system using the GM47. It also shows the communication principles of the system. The definitions in the figure, as used elsewhere in this manual, are in accordance with the recommendations of GSM 07.07.

• The MS (mobile station) represents the GM47 module plus SIM card. The module excluding SIM card, is known as the ME (mobile equipment).

• The TE (terminal equipment) is a micro-controller (i.e., a computer) and is a part of the application.

Wireless Communication System

Application

(DTE)

ME status, responses

AT commands to control MS

GSM Network

(GM47)

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Figure 2.1 Main Blocks in a Wireless System

GM47/GM48 INTEGRATOR’S MANUAL

In accordance with the recommendations of ITU-T (International Telecommunication Union - Telecommunications Standardisation Sector) V.24, the TE communicates with the MS over a serial interface.

The functions of the GM47 follow the recommendations provided by ETSI (European Telecommunications Standards Institute) and ITU-T.

ETSI specifies a set of AT commands for controlling the GSM element of the module; these commands are supplemented by Sony Ericsson specific commands.

To find out how to work with AT commands, see “Part 4: Using AT Commands”, page 79.

Figure 2.2 illustrates the interface between the module and the application. The entire System Connector Interface is described in detail in “System Connector Interface”, page 41

Signals

(Application)

and power

60 pin system connector

(GM47)

Antenna

connector

Figure 2.2 The Interface between the Module and the Application

Note! ITU-T standards define TE and TA as DTE (Data Terminal Equipment)

and DCE (Data Circuit Terminating Equipment) respectively.

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2.3 Features

The module performs a set of telecom services (TS) according to GSM standard phase 2+, ETSI and ITU-T. The functions of the module are implemented by issuing AT commands over a serial interface.

2.3.1 Types of Mobile Station

GM47 and GM48 are dual band mobile stations with the characteristics shown in the tables below.

GM47 GSM900 E-GSM900 GSM1800

2. GM47/GM48 MODULES

Frequency Range (MHz) TX: 890-915

Channel spacing 200kHz 200kHz

Number of channels 173 carriers *8 (TDMA)

Modulation GMSK GMSK

TX phase accuracy < 5º RMS phase error (burst) < 5º RMS phase error (burst)

Duplex spacing 45MHz 95MHz

Receiver sensitivity at antenna connector

Transmitter output power at antenna connector

Automatic hand-over between GSM 900 and GSM1800

GM48 GSM850 GSM1900

Frequency Range (MHz) TX: 824-849

Channel spacing 200kHz 200kHz

RX: 935-960

GSM: channels 1 to 124 E-GSM: channels 975 to 1023

< –102dBm < –102dBm

Class 4 2W (33dBm)

RX: 869-894

TX: 880-890 RX: 925-935

TX: 1710-1785 RX: 1805-1880

374 carriers *8 (TDMA) DCS: channels 512 to 885

Class 1 1W (30dBm)

TX: 1850-1910 RX: 1930-1990

Number of channels

Modulation GMSK GMSK

TX Phase Accuracy < 5º RMS phase error (burst) < 5º RMS phase error (burst)

Duplex spacing 45MHz 80MHz

Receiver sensitivity at antenna connector

Transmitter output power at antenna connector

Automatic hand-over between GSM850 and GSM1900

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123 carriers *8 (TDMA) GSM: channels 128 to 251

< –102dBm < –102dBm

Class 5

0.8W (29dBm)

298 carriers *8 (TDMA) PCS: channels 512 to 810

Class 1 1W (30dBm)

2.3.2 Short Message Service

The module 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 GSM 03.40.

• SMS COMMAND according to GSM 03.40.

The maximum length of an SMS message is 160 characters when using 7-bit encoding. For 8-bit data, the maximum length is 140 characters. The module supports concatenated messages to extend this function. It is disabled if CNMI 3,2 is set (See “AT+CNMI New Message Indications to TE”, page 264).

GM47/GM48 INTEGRATOR’S MANUAL

2.3.3 Voice Calls

2.3.4 Data

The GM47 offers the capability of mobile originated and mobile terminated voice calls, as well as supporting emergency calls. Multi-party, call waiting and call deflection features are available. Some of these features are network-operator specific.

For the inter-connection of audio, the module offers both single ended and balanced analogue input and output lines. Direct interface to the digital PCM (pulse code modulation) bus used within the module is available, thus by-passing the internal analogue circuitry.

The module supports the following data protocols:

• GPRS (General Packet Radio Service) Modules are Class B terminals, which provide simultaneous activation and attachment of GPRS and GSM services. GM47 modules are GPRS 4+1 enabled devices, which are capable of transmitting in one timeslot per frame (up link), and receiving at a maximum of four timeslots per frame (down link).

• CSD (Circuit Switched Data) GM47 modules are capable of establishing a CSD communication at

9.6kbps.

• HSCSD (High Speed Circuit Switched Data). GM47 supports HSCSD communication, with one timeslot per frame capacity in the up link and two timeslots per frame capacity in the down link (2+1).

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2. GM47/GM48 MODULES

2.3.5 SIM Card

An external SIM card with 3V or 5V technology, can be connected to the module via its 60-pin system connector.

2.3.6 Average Power Consumption

Idle Mode Transmit/Operation

GSM850 and GSM900

GSM1800 and GSM1900

Note! The power consumption during transmission is measured at maximum

transmitted power.

2.3.7 Other Features

These include:

• 07.10 multiplexing.

• GPS interoperability.

• SIM application tool kit.

2.4 Service and Support

2.4.1 Web Pages

Voice/CSD <5mA <250mA (<2A peak)

Data (GPRS 4+1) <5mA <350mA (<2A peak)

Voice/CSD <5mA <250mA (<1.75A peak)

Data (GPRS 4+1) <5mA <350 mA (<1.75 A peak)

Visit our web site for the following information:

• where to buy modules or for recommendations concerning

• the telephone number for customer support in your region;

• FAQs (frequently asked questions).

The web site address is:

http://www.sonyericsson.com/M2M

2.4.2 Integrator’s Manual

This manual provides you with all of the information you need to integrate the module into your application.

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accessories and components;

2.4.3 Developer’s Kit

2.5 Precautions

GM47/GM48 INTEGRATOR’S MANUAL

Sony Ericsson provides the opportunity for designers to test the module on a limited scale using its Developer’s Kit. The kit includes the necessary accessories (software and hardware) required to build and test an application. It includes the following:

• GSM module, GM47 or GM48;

• This integrator’s manual;

• Software developer’s kit and manual;

• Developer’s kit hardware.

All the user needs to provide, is a computer or micro-controller and the expertise to use AT commands.

GM47 and GM48 modules are static sensitive devices (SSDs). Normal SSD procedures for electronic devices should be used when handling the modules. In “Part 3: Integrating the Module”, page 37 you will find more information about safety and product care. Do not exceed the environmental and electrical limits as specified in “Technical Data”, page 75.

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3. Abbreviations

Abbreviation Explanations

CBM Cell Broadcast Message

CBS Cell Broadcast Service

CSD Circuit Switched Data

DCE Data Circuit Terminating Equipment

DTE Data Terminal Equipment

DTMF Dual Tone Multi Frequency

EFR Enhanced Full Rate

EMC Electro-Magnetic Compatibility

ETSI European Telecommunication Standards Institute

3. ABBREVIATIONS

FR Full Rate

GPRS General Packet Radio Service

GPS Global Positioning System

GSM Global System for Mobile Communication

HR Half Rate

HSCSD High Speed Circuit Switched Data

ITU-T International Telecommunication Union - Telecommunications

ME Mobile Equipment

MO Mobile Originated

MS Mobile Station

MT Mobile Terminated

PCM Pulse Code Modulation

PDU Protocol Data Unit

RLP Radio Link Protocol

RF Radio Frequency

Standardisation Sector

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RTC Real Time Clock

SDP Service Discovery Protocol

SIM Subscriber Identity Module

SMS Short Message Service

GM47/GM48 INTEGRATOR’S MANUAL

Abbreviation Explanations

TA Terminal Adapter

TE Terminal Equipment

THD Third Harmonic Distortion

TS Telecom Services

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Part 2: Developer’s Kit

Product Photo/Illustration

1. Introduction

1.1 Overview

The developer’s kit 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 computer or micro controller, a SIM card and network subscription, and a knowledge of programming with AT commands.

Note! Before connecting up and using the developer’s kit, we strongly

recommend you read “Part 3: Integrating the Module”, page 37 and all of this section. There are many switches, jumpers and connector options in the developer’s kit. A knowledge of the functionality of the GM47 module is therefore essential before you start altering the hardware settings.

The main hardware in the developer’s kit is a screened box, containing a board onto which you plug the GM47 module. Connectors, switches, jumpers and SIM card holder are provided to allow you to configure and access all the functions of the module.

1.2 Contents of the Kit

Please take the time to check the contents of your kit against the list shown below. If any of the items are missing contact your supplier immediately.

Developer’s kit - Part Number DPY 102 218

Contents:

Description Product Number Qty

Radio modem: GM47 module or GM48 module

GM47/GM48 developer’s kit (screened box and development board)

Switched mode PSU 12V d.c. EPA-121DA-12 1

UK mains plug EN90POWERLEADUK 1

European mains plug EN90POWERLEADEU 1

DPY 102 201

DPY 102 204

KRY 101 1907 1

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GM47/GM48 INTEGRATOR’S MANUAL

Description Product Number Qty

Cable with connector/cable serial 9-9 PIN DB9(M)-DB9(F) 1

Portable handsfree 2002-1-24 1

Quad band antenna RG174 1

Data carrier/CD-ROM containing: Software Manual; Integrator’s Manual

1.3 General Functioning of the Kit

The following block diagrams are provided to help you understand the general principles of operation of the developer’s kit.

You have the following options as shown in Figure 1.1:

• Connect the GM47 internally, direct to J4 or position it externally and connect to J10 via a flat cable.

• Use the kit’s connectors to access and control the GM47 (all switches and jumpers in their default positions).

• Access and control the GM47 directly via J12 and a flat cable. This allows you to selectively bypass any circuits contained on the board, and test your own application.

Pin header

J12

60 pins male

1.27mm pitch

External

Application

LZY 213 1319 1

Pins connected in parallel

J11

J4J10

User selectable

jumpers

Developer's

board circuits

and ports

Developer's board

Figure 1.2 shows the various on-board voltages and how they are fed to the GM47 and other circuitry. The developer’s board is powered by an external power supply connected to Vcc.

fit direct to J4

alternate flat cable to J10

Pin headers

Pin header

60 pins male

2.54mm pitch

60 pins female

1.27mm pitch

Figure 1.1 Module connections to the developer’s board

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GM47

1. INTRODUCTION

12v

DC Power Socket,

Input 10..15V

5V to development

board circuits

Switched

when VIO

VIO present LED

present

reg.

2V7 reg.

2V7

To development board & interface circuits

VIO

GM47

3V8

VCC

3V8 reg.

Vcc

TP4 TP5

Figure 1.2 Power supply connection and the on-board voltages

Figure 1.3, Figure 1.4 and Figure 1.5 show how various signals are routed on the developer’s board. Thicker lines indicate multiple signals.

GM47

VIO

General purpose I/O

LED

ON/OFF

SERVICE

I²C

VRTC

SIM

Selectable

Jumpers

n/c

J12

U10 SIM

SW4

2V7

SIM holder with SIM presence switch (to DGND)

STATUS L ED

(Blinks when connected to network)

ON/OFF

SERVICE LED

(Lit when SW4 closed)

0.22F

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Figure 1.3 Miscellaneous signals, connection and routing

GM47

GM47/GM48 INTEGRATOR’S MANUAL

ATM S

AFMS

MICN, MICP, BEARN, BEARP

Buzzer

PCM

Selectable

Jumpers

J12

3.5mm socket

RJ11 connector

Buzzer

8 pin Mini-DIN

(Audio out)

EAR

(Audio in)

MIC

Handset

PCM

GM47

TD, RD, DTR, DCD, RTS, CTS, RI

TD2, RD2 & SERVICE

TD3 & RD3

Figure 1.4 Audio signals, connection and routing

J12

UART1 (EDB)

UART2 (ACB)

UART3

Selectable

jumpers

Level shifters

Figure 1.5 Comms signals, connection and routing

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2. USING THE DEVELOPER’S KIT

2. Using the Developer’s Kit

This section provides you with the information needed to setup and use the developer’s kit. Before changing switch and jumper settings, refer to “2.3 Jumpers, Switches and Connectors”, page 32.

Front and rear views of the developer’s kit are shown below. To access the inside, remove the 8 screws on the top of the box and the cover plate.

UART3

Vcc

N OFF ON

OFF APP

ON/OFF

Figure 2.1 Front view

UART1

GM47/GM

VIO

I V R

ATU

48 Developer's Kit

SET

MIC

UART2

EAR

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Figure 2.2 Rear view

2.1 Start up Check List

To use the developer’s kit in standard format check the following:

• With the case lid removed, make sure the GM47 module is plugged into J4 and the RF lead is connected to the rear of the module;

• Add your SIM card;

• Check the jumpers are in their default positions. Refer to Figure 2.3;

• Connect the serial cable between your computer and UART1 on the rear panel;

• Connect the antenna to the RF connector on the rear panel;

• Connect the audio equipment if required;

• Plug the external power supply into the socket marked 12v on the front panel;

• Switch Vcc to ON;

• Push ON/OFF for at least 2 seconds until the yellow VIO LED is on.

GM47/GM48 INTEGRATOR’S MANUAL

Your developer’s kit should now be operational and ready to receive AT commands.

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2. USING THE DEVELOPER’S KIT

2.2 Developer’s Board Overlay

Figure 2.3 shows the developer’s board, including the position of all the connectors, switches and jumpers (default positions). You will notice that many jumpers are labelled “SW”. This is because the board was previously fitted with DIL switches.

UART2

(ACB)

JP21

JP18

Ground stud

J12

Application Connector

59 1

260

UART1

(EDB)

SW8

SW11

SW7

U10 SIM

Holder

SW1

SW9

SW6

SW3

J11

159

Test Connector

RF connector

SIM test

connector

J10

System Connector (for flat cable)

60 2

59 1

TP5 TP4

159

System Connector

UART3

VCC

12v

DC Power

10..15V d.c.

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Socket,

Input

NC/OFF/ON

power to

Vcc

module

JP24

SW4

DCIO

Maintain in

OFF position

(Not used with this module.

Only present for backward

compatibility)

SW10

ON/OFF

(module)

SW5

VIO

STATUS

Handset PCM MIC

SERVICE

Figure 2.3 Developer’s board overlay

Audio in

(ATMS)

EAR

Audio out

(AFMS)

GM47/GM48 INTEGRATOR’S MANUAL

2.3 Jumpers, Switches and Connectors

You will notice that many jumpers are labelled “SW”. This is because the board was previously fitted with DIL switches. All jumpers are located on the developer’s board (see “Developer’s board overlay”, page 31).

Jumper Signal Setting

JP18 TD Maintain jumper in

JP21 JP18

lower default position

JP21 RD Maintain jumper in

lower default position

JP24 Reserved for

future use

MUST remain open to prevent damage to the module. As an extra precaution, maintain DCIO in the OFF position

SW4 SERVICE Connect the pins using the floating

connector ONLY when programming the module or logging data

SW1, SW3, SW5, SW6, SW7, SW8, SW9, SW10, SW11, J11 links

See diagram below

Default positions shown below. Move any “SW” jumper to the right-hand position to divert the signal to connector J12. Remove the J11 links to bypass J8, J9 or CP1 and process audio signals externally

J11

SIMRST

SIMCLK

SCL

SDA

SW8 SW1

VRTC

RD3 (RX3)

TD3 (TX3)

SW11 SW6

PCMULD

PCMIN

PCMOUT

PCMCLK

SW7 SW3

BEARP

SERVICE

AFMS ATMS

SW10 SW5

SW9

ON/OFF PRESENCE SIMVCC SIMDAT

BUZZER LED RI DCD

DTR CTS RTS RD (DFMS)

TD (DTMS) RD2 (CFMS) TD2 (CTMS) PCMDLD

PCMSYN MICN MICP BEARN

4847

59 60

The links shown on J11 must be in place to access audio on J8, J9 or CP1

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2. USING THE DEVELOPER’S KIT

All switches are mounted on the front panel of the developer’s box.

Switch Description Operation

Vcc Toggle switch Switches power from external power supply to

module. Has three positions; NC, OFF and ON. Switch to ON to connect power to the module

ON/OFF Push button

switch

Switches module on and off. To power up the module, push button for at least 2 seconds, until the yellow VIO LED is on. Repeat the process to turn the module off

DCIO Toggle switch Maintain in OFF position. Included only for

backwards compatibility

Connector Description Connections

UART1 (EDB)

9-way Dsocket (accessible on the rear

Full 9-pin RS232 communication port. Used during run-time to communicate with the module (AT-commands, data transmission, etc.)

panel)

DCD

RD RTS TD CTS DTR

1 6 2 7 3 8 4 9RI 5

UART2 (ACB)

9-way Dsocket (accessible on the rear panel)

UART3 9-way

Dsocket (accessible on the rear panel)

3 line RS232 communications port (+SERVICE). Used during service and maintenance operations. Also used to download new software to the module

6 RD2 SERVICE TD2

3 line serial port. RS232 levels

6 RD3

TD3

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GM47/GM48 INTEGRATOR’S MANUAL

Connector Description Connections

Handset RJ11 socket Connector for a standard telephone

handset. As PCM paths are open inside the module, a default short circuit is made between PCMDLD-PCMIN and PCMULDPCMOUT signals on test connector J11 to enable analogue audio in downlink and uplink directions. Jumpers are in place between pins 48 & 50 and between pins 47 & 49

Pin # Signal

1234

1MICN 2BEARN 3BEARP 4MICP

PCM 8 pin mini-DIN

connector

Carries PCM signals Pin # Signal

1 VIO (2.75V d.c. output) 2PCMULD 3PCMDLD

J4 SYSTEM

connector

4 PCMCLK 5PCMSYNC 6DGND 7PCMIN 8PCMOUT 9DGND

Allows direct connection of the module to the development board (see Figure 2.3,

page 31)

J5 SIM card test

connector

Connector to gain access to the SIM card signals, which are connected in parallel with U10

Pin # Signal

1SIMVCC 2SIMRST 3SIMCLK 4SIMDAT 5 SIMPRESENCE 6SIMGND 7SIMGND

U10 SIM Holder Connector for SIM card. Signals are also

present at test connector J5, described above

EAR 3.5 mm 2-pole

jack socket

Audio output (unbalanced) or Audio From Mobile Station (AFMS). Make sure jumpers are in place between pins 48 & 50 and between pins 47 & 49

ground signal

MIC 3.5mm 2-pole

jack socket

Audio input (unbalanced) or Audio To Mobile Station (ATMS). Signal source must be AC-coupled as a bias voltage for electret microphones is provided (2.0 - 2.5V d.c.). Make sure Jumpers are in place between pins 48 & 50 and between pins 47 & 49

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2. USING THE DEVELOPER’S KIT

Connector Description Connections

J10 SYSTEM

connector

J11 TEST

connector

J12 Application

connector

12v 2.1mm DC

Power Socket

RF SMA panel

socket

For optional flat cable connection between the module and the development board (see Figure 2.3, page 31)

60 pin, 2.54mm pitch, dual row pin header that carries all signals present at the system connector of the module. Used for easy testing of the signals (see Figure 2.4, page 36)

For flat cable connection between a host application and the module. Most of the signals pass through jumpers that allow the developer to select whether a specific signal is routed to/from the development board or to/from the host application. If no application is connected to J12, these jumpers (SW1, SW3, SW5, SW6, SW7, SW8, SW9, SW10 & SW11) serve as on/off switches for the module signals (see Figure 2.3, page 31)

Allows connection of an external power supply. Between 10V and 15V d.c. at 6 watts is required

Connect the supplied antenna

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GM47/GM48 INTEGRATOR’S MANUAL

2.4 System Connector Pin Assignments

Refer to the table below when monitoring signals on, or connecting to, J10, J11 or J12. The table shows the system-connector pin assignments for the GM47 module.

1 VCC DGND 2

3 VCC DGND 4

5 VCC DGND 6

J10, J11 & J12 pin

numbering

viewed from the

front of the

developer’s box

59 60

7 VCC DGND 8

9 VCC DGND 10

11 VCC DGND 12

13 Reserved for future use ON/OFF 14

15 SIMVCC SIMPRESENCE 16

17 SIMRST SIMDAT 18

19 SIMCLK DAC 20

21 IO1 IO2 22

23 IO3 IO4 24

25 VRTC ADC1 26

27 ADC2 ADC3 28

29 SDA SCL 30

31 BUZZER OUT5 32

33 LED VIO 34

35 TX_ON RI 36

37 DTR DCD 38

39 RTS CTS 40

41 TD (DTMS) RD (DFMS) 42

43 TD3 (TX3) RD3 (RX3) 44

45 TD2 (CTMS) RD2 (CFMS) 46

47 PCMULD PCMDLD 48

49 PCMOUT PCMIN 50

51 PCMSYNC PCMCLK 52

53 MICP MICN 54

55 BEARP BEARN 56

57 AFMS SERVICE 58

59 ATMS AGND 60

Figure 2.4 System connector pin assignments

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Part 3: Integrating the Module

Product Photo/Illustration

1. Mechanical Description

1.1 Interface Description

The pictures below show the mechanical design of the GM47 along with the positions of the different connectors and mounting holes. The GM47 is protected with AISI 304 stainless steel covers that meet the environmental and EMC requirements.

Mounting hole/ground connection

Antenna connector

System connector

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Figure 1.1 GM47 viewed from below

Figure 1.2 GM47, viewed from above

Please note the following:

• Mounting holes positioned at the corners make it possible to securely bolt the module into your application.

GM47/GM48 INTEGRATOR’S MANUAL

• Keypad, display, microphone, speaker and battery are not part of the module.

• The SIM card is mounted in your application, external to the module.

• The System Connector is a 60-pin, standard 0.05 in (1.27mm) pitch type. The pins and their electrical characteristics are described in “2. System Connector Interface”, page 41.

• Information about the Antenna Connector is found in “3. Antenna Connector”, page 68.

1.2 Physical Dimensions

2.20 (4x)

33.00

50.00

46.40

4.78

9.00

1.80

2.86

2.053.80

30.20

2.30

3.00

7.15 2.90

4.60

2.80

Figure 1.3 Dimensions of the GM47

Measurements are given in millimetres. See also “Technical Data”, page 75.

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2. System Connector Interface

2.1 Overview

Electrical connections to the module (except the antenna), are made through the System Connector Interface. The system connector is a 60-pin, standard 0.05in (1.27mm) pitch device.

The system connector allows both board-to-board and board-to-cable connections to be made. Use a board-board connector to connect the module directly to a PCB, and a board-cable connector to connect the module via a cable.

Figure 2.1 below shows the numbering of the connector pins.

A ground connection is provided at the mounting hole next to the RF connector on the module as shown below. Connect this ground point to the DGND pins of the module 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 module’s internal ground path.

Ground connection

Pin 59 Pin 1

Pin 60 Pin 2

Figure 2.1 GM47, viewed from underneath

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GM47/GM48 INTEGRATOR’S MANUAL

The following table gives the pin assignments for the system connector interface and a short description for each signal.

Note! Under the heading “Dir” in the table, module input and output signals

are indicated by the letters I and O respectively.

Pin Signal Name Dir Signal Type Description

1 VCC - Supply Power supply

2 DGND - - Digital ground

3 VCC - Supply Power supply

4 DGND - - Digital ground

5 VCC - Supply Power supply

6 DGND - - Digital ground

7 VCC - Supply Power supply

8 DGND - - Digital ground

9 VCC - Supply Power supply

10 DGND - - Digital ground

11 VCC - Supply Power supply

12 DGND - - Digital ground

13 Reserved for

14 ON/OFF I Internal pull

15 SIMVCC - Digital 3 V/5V SIM card power supply. Power output

16 SIMPRESENCE I Internal pull

17 SIMRST O Digital 3V/5V SIM card reset

18 SIMDATA I/O Digital 3V/5V SIM card data

19 SIMCLK O Digital 3V/5V SIM card clock

20 DAC O Analogue Digital to analogue converter

21 IO1 I/O Digital 2.75 General purpose input/output 1

future use

up, open drain

Turns the module on and off. Former WAKE_B

from module for SIM Card

SIM Presence A “1” indicates that the SIM is missing; a “0” that it is inserted

22 IO2 I/O Digital 2.75 General purpose input/output 2

23 IO3 I/O Digital 2.75 General purpose input/output 3

24 IO4 I/O Digital 2.75 General purpose input/output 4

25 VRTC I Supply 1.8V Supply for real time clock

26 ADC1 I Analogue Analogue to digital converter 1

27 ADC2 I Analogue Analogue to digital converter 2

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2. SYSTEM CONNECTOR INTERFACE

Pin Signal Name Dir Signal Type Description

28 ADC3 I Analogue Analogue to digital converter 3

29 SDA I/O 2.75, internal

pull up

30 SCL O 2.75, internal

pull up

I2C data

I2C clock

31 BUZZER O Digital 2.75 Buzzer output from module

32 OUT5 O Digital 2.75 Programmable output 5

33 LED O Digital 2.75 Flashing LED

34 VIO O Power Out

2.75V

Module power indication. VIO is a

2.75V at 75mA output supply that can be used to power external circuitry that interfaces to the GM47

35 TX_ON O Digital 2.75 This output indicates when the GSM

module is going to transmit the burst

36 RI O Digital 2.75 Ring Indicator (UART1)

37 DTR I Digital 2.75 Data Terminal Ready (UART1)

38 DCD O Digital 2.75 Data Carrier Detect (UART1)

39 RTS I Digital 2.75 Request To Send (UART1)

40 CTS O Digital 2.75 Clear To Send (UART1)

41 TD I Digital 2.75 Transmitted Data (UART1).

Data from DTE (host) to DCE (module). Former DTMS

42 RD O Digital 2.75 Received Data (UART1).

Data from DCE (module) to DTE (host). Formerly DFMS

43 TD3 I Digital 2.75 UART3 transmission

44 RD3 O Digital 2.75 UART3 reception

45 TD2 I Digital 2.75 UART2 transmission. Used for flashing

the memory. Former CTMS

46 RD2 O Digital 2.75 UART2 Reception. Used for flashing the

memory. Former CFMS

47 PCMULD I Digital 2.75 DSP PCM digital audio input

48 PCMDLD O Digital 2.75 DSP PCM digital audio output

49 PCMOUT O Digital 2.75 Codec PCM digital audio output

50 PCMIN I Digital 2.75 Codec PCM digital audio input

51 PCMSYNC O Digital 2.75 DSP PCM frame sync

52 PCMCLK O Digital 2.75 DSP PCM clock output

53 MICP I Analogue Microphone Input positive

54 MICN I Analogue Microphone Input negative

55 BEARP O Analogue Speaker output positive

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GM47/GM48 INTEGRATOR’S MANUAL

Pin Signal Name Dir Signal Type Description

56 BEARN O Analogue Speaker output negative

57 AFMS O Analogue Audio output from module

58 SERVICE I 2.7V Flash programming voltage for the MS.

59 ATMS I Analogue Audio input to module

60 AGND - - Analogue ground

Enable logger information if not flashing. Formerly VPPFLASH

2.2 General Electrical and Logical Characteristics

Many of the signals, as indicated in the table above, are high-speed CMOS logic inputs or outputs powered from a 2.75V±5% internal voltage regulator, and are defined as Digital 2.75V. Whenever a signal is defined as Digital 2.75V, the following electrical characteristics apply.

Parameter Min. Max. Units

High Level Output Voltage (VOH), Io= –2mA 2.2 2.75 V

Low Level Output Voltage (VOL), Io = 2mA 0 0.6 V

High Level Input Voltage (VIH) 1.93 2.75 V

Low Level Input voltage (VIL) 0 0.8 V

Note! Unused pins can be left floating.

2.2.1 General Protection Requirements

• All 2.75 V digital inputs will continuously withstand and suffer no damage in the power-on or power-off condition when subjected to any voltage from -0.5V to 3.47V (3.3V+5%).

• All 2.75V digital outputs will continuously withstand a short circuit to any other voltage within the range 0V to 3V.

• All analogue outputs will continuously withstand a short circuit to any voltage within the range 0V to 3V.

• The SIM output signals and the SIMVCC supply will continuously withstand a short circuit to any voltage within the range 0V to 5.8V.

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2. SYSTEM CONNECTOR INTERFACE

2.3 Grounds

Pin Signal Description

2, 4, 6, 8, 10, 12 DGND Digital ground

60 AGND Analogue ground

There are two ground connections in the GM47, AGND (analogue ground) and DGND (digital ground). Pin assignments are shown in the table above.

Note! AGND and DGND are connected at a star point inside the module. They

must not be joined together in your application.

2.3.1 Analogue Ground - AGND

AGND is the return signal, or analogue audio reference, for ATMS (Audio To Mobile Station) and AFMS (Audio From Mobile Station).

Parameter Limit

max

2.3.2 Digital Ground - DGND

DGND is the reference or return signal for all system interface digital signals and is also the d.c. return for SERVICE and the power supply, VCC. Connect all DGND pins together in your application in order to carry the current drawn by the module.

2.4 VCC - Regulated Power Supply Input

Pins Signal Description

1, 3, 5, 7, 9, 11 VCC regulated power supply input

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

Connect all VCC pins together in your application in order to carry the current drawn by the module.

≅12.5mA

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GM47/GM48 INTEGRATOR’S MANUAL

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

Parameter Mode Limit

Nominal 3.6V

Vcc supply voltage

Maximum allowable voltage drop

Current drawn, at full TX power

a. Measured at system connector pins.

Note! GM47 has no internal capacitance to supply the large current peaks

during GSM burst transmission. We recommend you follow these general guidelines:

• Fit a low ESR electrolytic capacitor close to the module: > 1,000µF; <100mΩ ESR.

• Make sure power supply to module line resistance is < 200 mΩ.

2.5 ON/OFF and External Power Signal

Tolerance including ripple

Over-voltage limit 5.5 V

Maximum ripple TBD

Burst transmission 200 mV

3.4V - 4.0V

<350mA (average)

<2A (peak)

Pin Signal Dir Description

14 ON/OFF I Pulse signal to turn the module on or off

34 VIO O 2.75 V supplied by the module

2.5.1 Switching the module ON and OFF

The module is turned on and off by momentarily grounding the ON/OFF pin. This input should be driven by an open collector, or other device which will not tie the input high, to allow the internal alarm clock function to operate. See the table below for exact characteristics. In the OFF state the current consumption of the module is less than 100µA.

The ON/OFF signal is a digital input with the following characteristics:

Parameter Min. Typ. Max. Units

Voltage HIGH level (FALSE) VCC V

Voltage LOW level (TRUE) 0 0.3 x VCC V

Pull-up resistance (internal) 39 kΩ

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2. SYSTEM CONNECTOR INTERFACE

The following timing diagram illustrates both power-up and powerdown processes.

Module on Module off

ON/OFF

VIO

Module powered

pwr

Module power-up Module power-down

Figure 2.2 ON/OFF timing and VIO performance

Times are defined as follows:

Time Description Min. Typ. Max. Units

Turn-on pulse time ≥2 s

Turn-off pulse time ≥ 1 s

Hardware-reset pulse time

>10 s

2.5.2 VIO - 2.75V Supply

VIO provides an output voltage derived from an internal 2.75V regulator. Its electrical characteristics are shown below.

You can use this output for the following:

• to indicate that the module is alive;

• to power interface circuits, external to the module.

pwr

Time for VIO and internal voltages to be established

100 200 ms

a. Active only when a full system reset is required.

Parameter Min. Typ. Max. Units

Output Voltage (I

Load current 75 mA

= 50mA) 2.70 2.75 2.85 V

load

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2.6 Analogue Audio

Pin Signal Dir Description

57 AFMS O Audio from mobile station

59 ATMS I Audio to mobile station

60 AGND - Ground (return) for analogue audio

ATMS is the audio input, and AFMS is the audio output, of the module. These signals can be used in Hands-free or Portable Hands-free mode.

Hands-free Mode

This mode is used for audio accessories, such as car kits and hands-free equipment.

Portable Hands-free Mode

GM47/GM48 INTEGRATOR’S MANUAL

This is the default mode. It activates a different amplification factor in the ME, and activates a 2V microphone bias level for ATMS. The bias level is adjustable using AT*E2EAMS.

2.6.1 Audio To Mobile Station - ATMS

ATMS is the analogue audio input to the module. Internally, the signal is sent to the CODEC (COder/DECoder), where it is converted to digital audio in PCM (Pulse Code Modulation) format. The encoded audio is sent to PCMOUT via the internal PCM bus.

ATMS provides a DC bias when it is used as the microphone input in Portable Hands-free applications. All other sources must be a.c.-coupled to avoid attenuation of low frequencies, and to prevent incorrect biasing or damage to the ATMS input. Use a capacitor greater than the value shown in the table below.

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

Parameter Limit

Application driving impedance (0.3 - 3.5kHz) ≤ 300Ω

AC coupling capacitance

Module input impedance (0.3 - 3.5kHz) >50kΩ

Low frequency cut-off (-3 dB) 300Hz ± 50Hz

≥ 1µF

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2. SYSTEM CONNECTOR INTERFACE

Parameter Limit

High frequency cut-off (–3 dB) > 3500Hz ± 50Hz

Output d.c. bias level

Additional Gain in Portable hands-free mode 28.5 dB

Hands-free mode 0V

Portable hands-free mode 2.0 V ± 0.1V

a. The a.c.-coupling capacitance must be supplied by your application, unless

a d.c.-coupled microphone is used.

The following tables show the nominal PGA (programming gain settings). For more information see the relevant AT commands.

Maximum input voltage limit: 245mV

Input Input (mV

ATMS 245 0 13 3

) TXAGC (dB) AUX AMP

rms

Maximum input level at MICI, 61.4mV

rms

gain

rms

PCMOUT (dBm0)

output at

PCMOUT = 3dBm0

Input Differential

input (mV

rms

TXAGC (dB) AUX AMP

)

PCMOUT (dBm0)

gain

MICN MICP

61.4 0 25 3

Output at AFMS for 3dBm0 at PCMIN

Input dBm0 RXPGA Volume

PCMIN 3 0 0 436

Output at BEARN/BEARP for 3dBm0 at PCMIN

Input dBm0 RXPGA Volume

PCMIN 3 0 0 388

2.6.2 Audio From Mobile Station - AFMS

AFMS is the analogue audio output from the module and may be used to drive a speaker or the ear-piece in a portable hands-free accessory.

PCM digital audio signals, entering the module through the PCMIN pin, are translated to analogue signals by the CODEC. See “2.7 PCM Digital Audio”, page 52 for further information.

control (dB)

AFMS (mV

BEAR (mV

rms

)

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GM47/GM48 INTEGRATOR’S MANUAL

The table below shows the audio signal levels for AFMS.

Parameter Limit

Speaker impedance 64Ω to 1kΩ

Output Capacitance 2.2µF ±10%

Levels (THD <5 %)

2.6.3 Microphone Signals

Pin Speaker signals Dir Function

53 MICP I Microphone positive input

54 MICN I Microphone negative input

MICP and MICN are balanced differential microphone input pins. These inputs are compatible with an electret microphone. The microphone contains an FET buffer with an open drain output, which is supplied with at least +2V relative to ground by the module as shown below.

Drive capability into 5kΩ (0.3 - 3.5kHz)

Drive capability into 1.5kΩ (0.3 - 3.5kHz)

Drive capability into 150 Ω (at 1kHz)

2 - 2.5V

@ 1mA

68nF

MICP

>2.4V

>2.2V

>1.3V

p-p

CODEC

GM47

68nF

MICN

AGND

Figure 2.3 Microphone connections to the module

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2.6.4 Speaker Signals

2. SYSTEM CONNECTOR INTERFACE

Pin Speaker signals Dir Function

55 BEARP O Speaker positive output

56 BEARN O Speaker negative output

BEARP and BEARN are the speaker output pins. These are differential-mode outputs. The electrical characteristics are given in the table below.

Parameter Limit

Output level (differential) ≥4.0V

Output level (dynamic load = 32Ω) ≥2.8V

Gain PCMINa to BEARP/BEARN (differential)

Distortion at 1 kHz and maximum output level ≤ 5%

Offset, BEARP to BEARN ±30mV

Ear-piece mute-switch attenuation ≥ 40dB

–9dB ± 1

a. See PCMIN signal in “2.7 PCM Digital Audio”, page 52

The following table shows the ear piece impedances that can be connected to BEARP and BEARN.

Ear piece model Impedance Tolerance

Dynamic ear piece [32Ω + 800µH] // 100pF ±20%

Dynamic ear piece [150Ω + 800µH] // 100pF ±20%

Piezo ear piece 1kΩ + 60nF ±20%

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2.7 PCM Digital Audio

Pin Signal Dir Function

52 PCMCLK O PCM clock

51 PCMSYNC O PCM frame sync

47 PCMULD I PCM audio input to DSP

48 PCMDLD O PCM audio output from DSP

50 PCMIN I PCM audio input to Codec

49 PCMOUT O PCM audio output to Codec

Figure 2.4 shows the PCM (Pulse Code Modulation) digital audio connection for external devices. These connections can be used to process PCM digital audio signals, bypassing the module’s internal analogue audio CODEC.

GM47/GM48 INTEGRATOR’S MANUAL

GM47

PCMSYNC & PCMCLK

DSP

Link for internal digital-audio processing

PCMDLD

PCMULD

System connector

PCMIN

PCMOUT

CODEC

Analogue audio signals

Figure 2.4 Pin connections to digital audio

Note! When no external audio processing is performed, the following pins

must be connected together:

• PCMDLD to PCMIN

• PCMULD to PCMOUT

Electrical characteristics

Digital 2.75V CMOS input/output electrical characteristics apply.

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2.7.1 PCM Data Format

13-Bit PCM Mode

2. SYSTEM CONNECTOR INTERFACE

All of the module’s PCM signals, including signals between its CODEC and DSP conform to the PCM data I/O format of the industry standard DSP from Texas Instruments.

PCMCLK (bit clock) and PCMSYNC (frame syncronisation) are both generated by the DSP within the module.

The DSP within the module is the master therefore all external PCM clocks and data from external devices must be synchronized to it

Bit Contents

D15 to D14 Equal to D13

D13 to D1 Two's complement of the 13-bit PCM

D0 LSB, not used

The module implements 13-bit PCM with the 13-bit data embedded in a 16-bit word within a 24-bit frame (see Figure 2.6). Each PCM word contains 16-bits: D0 to D15. D13 to D1 is the two’s complement value of the 13-bit PCM, with D13 as the sign bit. D14 and D15 are always set to be equivalent with D13. D0, the LSB, is not used as shown in Figure 2.5 below.

MSB D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 LSB

16-Bit PCM Mode

Bit Contents

D15 - D0 Two's complement

The frame format is equal to the one shown in Figure 2.5, but with D15, D14 and D0 filled with significant bits. D0 is the two’s compliment value of the 16-bit PCM with bit 15 as the sign bit.

13 bit PCM= D13 D0

16 bit data word

Figure 2.5 16-bit data word format

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GM47/GM48 INTEGRATOR’S MANUAL

PCM Timing Diagrams

The PCM timing is shown in Figure 2.6 below and it is seen that the CPU has 45µs to serve an interrupt and setup data channels. Data is sent on the falling edge of the sync pulse. The data bits in PCMULD and PCMDLD are aligned so that the MSB in each word occurs on the same clock edge as shown in Figure 2.7.

Clk

Sync

Data

PCM signal timing is shown in Figure 2.7. The signals characteristics are described in the tables following Figure 2.7.

125 µs

45 µs

Figure 2.6 16-bit word within 24-bit frame

PCMCLK

PSS

PCMSYN

PCMIN

PCMOUT

PSH

DSL

MSB

DSH

D14 D13

PDLP

XMSB D14 D13

Figure 2.7 PCM Timing Diagram

Name Description Typ. Unit

PSS

PSH

DSL

DSH

PDLP

PCMSYN (setup) to PCMCLK (fall) 2.5 µs

PCMSYN pulse length 5 µs

PCMI (setup) to PCMCLK (fall) 2.5 µs

PCMI (hold) from PCMCLK (fall) 2.5 µs

PCMO valid from PCMCLK (rise) 2.5 µs

Name Description Typ. Unit

PCMCLK

PCMSYN

PCM clock frequency 200 kHz

PCM clock period with 50/50 mark space ratio 5 µs

PCM sync frequency 8 kHz

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2. SYSTEM CONNECTOR INTERFACE

Typical Rise/Fall times Rise Time Fall Time Unit

PCMCLK 19 18 ns

PCMSYN 19 15 ns

PCMOUT 900 900 ns

PCMDLD 20 19 ns

2.8 Serial Data Interfaces

Pin Signal Dir Description RS232

41 TD I Serial data to module (UART1) 103

42 RD O Serial data from module (UART1) 104

39 RTS I Request To Send (UART1) 105

40 CTS O Clear To Send (UART1) 106

CCITT Nº

37 DTR I Data Terminal Ready (UART1) 108.2

38 DCD O Data Carrier Detect (UART1) 109

36 RI O Ring Indicator (UART1) 125

45 TD2 I UART2 Data Transmission

46 RD2 O UART2 Data Reception

43 TD3 I UART3 Data Transmission

44 RD3 O UART3 Data Reception

The serial channels, consisting of three UARTs, are asynchronous communication links to the application or accessory units. UART1 has RS-232 functionality. UART2 and UART3 behave as general-purpose serial data links. In addition they are used for accessories and GPS respectively.

Digital 2.75V CMOS input/output electrical characteristics apply.

The standard character format consists of 1 start bit, 8 bit data, no parity and 1 stop bit. In all, there are 10 bits per character.

2.8.1 UART1 (RS232) - RD, TD, RTS, CTS, DTR, DCD and RI

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UART1 signals conform to a 9-pin RS232 (V.24) serial port, except for the DSR (CCITT No 107) signal. The DSR signal has been removed as

it is usually connected to DTR in most systems.

GM47/GM48 INTEGRATOR’S MANUAL

Note! UART1 signal levels do not match standard RS232 (V.28) levels. The

relationship between the levels is shown in the table below.

RS232 level RD, TD RTS, CTS, DTR, DCD, RI CMOS level

<–3V 1 OFF >1.93V

>+3V 0 ON <0.80V

Conversion between the module CMOS levels and RS232 levels can be achieved using a standard interface IC, such as the Maxim Integrated Products MAX3237.

2.8.2 Serial Data Signals - RD, TD

The default baud rate is 9.6kbits/s, however higher bit rates of up to 460 kbits/s are supported, set by an AT command. UART1 starts at a rate of 9.6kbits/s in standard AT command mode. The module also supports GSM 07.10 multiplexing protocol and starts when the appropriate command is sent.

Serial Data From Module (RD)

RD is an output signal that the module uses to send data via UART1 to the application.

Parameter Limit

Application load resistance ≥ 100kΩ

Application load capacitance <100pF

Serial Data To Module (TD)

TD is an input signal, used by the application to send data via UART1 to the module.

Parameter Limit

Application driving impedance <100Ω

Input capacitance <100pF

Input resistance <100Ω in series, with 100kΩ to DGND

2.8.3 Control Signals - RTS, CTS, DTR, DCD, RI

UART1 control signals are active low and need a standard interface IC, such as the MAX3237, to generate standard RS232 levels.

UART1 converted signals, together with DGND, RD and TD form a 9-pin RS232 data port.

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2. SYSTEM CONNECTOR INTERFACE

RTS and CTS are capable of transmitting at 1/10th of the data transmission speed for data rates up to 460kbit/s (byte-oriented flow control mechanism).

Note! When hardware flow control is not used in communications between

the application and the module, RTS and CTS must to be connected to each other at the module.

Switching times for RTS and CTS

The table below shows the switching times.

Parameter Limit

Time from Low to High level <2µs

Time from High to Low level <2µs

Request to Send (RTS)

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 module. Similarly, the module asserts CTS low, indicating it is ready to receive data transmission from the host.

Parameter Limit

Application driving impedance <100Ω

Input capacitance <2nF

Input resistance (pull-up) 100kΩ to VCC

Clear To Send (CTS)

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.

Parameter Limit

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Application load capacitance <500pF

Application load resistance ≥1MΩ

GM47/GM48 INTEGRATOR’S MANUAL

Data Terminal Ready (DTR)

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. You can define the exact behaviour of DTR with an AT command.

Data Carrier Detect (DCD)

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

Ring Indicator (RI)

RI indicates that a ringing signal is being received by the DCE when low. You can define the exact behaviour of RI with an AT command.

Data Set Ready (DSR)

2.8.4 UART2 - TD2, RD2

No DSR signal is provided. Use any DGND connection for this functionality.

UART 2 consists of a full duplex serial communication port with transmission and reception lines.

This communication port works in a mode called Operation and Maintenance.

Operation and Maintenance mode works in combination with the SERVICE signal. Two events are possible if the SERVICE signal is active when the module is turned on. These are:

• the module is reprogrammed if UART2 is connected to a computer running Sony Ericsson update software;

• the module enters logging mode and sends data to UART2 if no reprogramming information is received.

Timing and electrical signals characteristics are the same as for UART1, TD and RD.

Transmitted Data 2 (TD2)

TD2 is used by the application to send data to the module via UART2. It has the same electrical characteristics as TD.

Received Data 2 (RD2)

RD2 is used to send data to the application via UART2. It has the same electrical characteristics as RD.

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2. SYSTEM CONNECTOR INTERFACE

2.8.5 UART3 - TD3, RD3 (designated for future use)

UART3 is a full duplex serial communication port with transmission and reception lines. It has the same timing and electrical signal characteristics as UART1, TD and RD.

Transmitted Data 3 (TD3)

TD3 is used by your application to send data to the module via UART3.

Received Data 3 (RD3)

RD is used to send data to your application via UART3.

2.9 SIM Card Related Signals

Pin Signal Dir Description

15 SIMVCC - SIM card power supply

16 SIMPRESENCE I SIM card presence

17 SIMRST O SIM card reset

19 SIMCLK O SIM card clock

18 SIMDATA I/O SIM card data

These connections allow you to communicate with the SIM card holder in you application.

Note! The distance between the SIM card holder and the module can be up to

25cm.

This SIM interface allows the use of 3V and 5V SIM cards. By default it works on 3V levels but will automatically switch to 5V, if a 5V SIM card is fitted.

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GM47/GM48 INTEGRATOR’S MANUAL

SIM voltage levels, as shown in the following table, are dependent on the type of SIM card detected by the module.

Signal Parameter Mode Min. Typ. Max. Unit

SIMVCC SIM supply voltage

SIMDAT

SIMCLK SIMRST

2.9.1 SIM Detection - SIMPRESENCE

High Level Input voltage (VIH)

Low Level Input voltage (VIL)

High Level Output voltage (VOH)

Low Level Output voltage (VOL)

High Level Output voltage (VOH)

Low Level Output voltage (VOL)

3V 2.7 3.0 3.3 V

5V 4.5 5.0 5.5 V

3V 2.1 3.0 V

5V 3.5 5.0 V

3V 0 0.9 V

5V 0 1.5 V

3V 2.7 3.0 V

5V 4.7 5.0 V

3V 0 0.2 V

5V 0 0.2 V

3V 2.4 3.0 V

5V 4.4 5.0 V

3V 0 0.35 V

5V 0 0.3 V

SIMPRESENCE 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 module. When pulled low the module assumes a SIM card is inserted.

SIMPRESENCE is a Digital 2.75 CMOS input with the following electrical characteristics.

Parameter Min. Typ. Max. Units

Pull-up resistance (at 2.75 V) 100 kΩ

Low Level Input voltage (SIM inserted) 0.80 V

High Level Input voltage (SIM missing) >1.93 2.75 V

Note! To meet regulatory approvals SIMPRESENCE must be implemented.

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2. SYSTEM CONNECTOR INTERFACE

2.10 Service/Programming

Pin Signal Dir Description

58 SERVICE I Flash programming voltage

When the SERVICE input signal is active the module will:

• be reprogrammed if data is received through UART2 from a computer running Sony Ericsson reprogramming software;

• or it will output logging data on UART2.

The electrical characteristics are given below. The signal reference is DGND.

Mode

Normal Operation 0.8 -

SERVICE Voltage (V)

Drive Capacity

Min. Typ. Max.

2.11 Buzzer

2.12 LED

Service/enable programming

Pin Signal Dir Description

31 BUZZER O Buzzer output from module

1.9 2.75 13.6 >1mA

Connecting the BUZZER signal to an inverting transistor-buffer followed by a piezoelectric transducer enables the module to play preprogrammed melodies or sounds.

Pin Signal Dir Description

33 LED O LED Output from module

The LED states shown below, are hard coded.

LED indication Operational status

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No indication No power or in the OFF state

Green, steady Power on, not connected to a network

Green, blinking Power on, connected to a network

GM47/GM48 INTEGRATOR’S MANUAL

The following circuit should be used to connect an LED.

VIO

GM47

LED

DGND

Figure 2.8 Electrical connections for the LED

2.13 General Purpose Digital I/O Ports

220

2k2

BC817

10k

Pin I/O port

signal

21 IO1 - Programmable Input/Output 1

22 IO2 - Programmable Input/Output 2

23 IO3 - Programmable Input/Output 3

24 IO4 - Programmable Input/Output 4

37 IN5 DTR Programmable input 5/Data Terminal Ready

32 OUT5 - Programmable output 5

36 OUT6 RI Programmable Output 6/Data Carrier

38 OUT7 DCD Programmable Output 7/Ring indicator

Default signal

Description

Detect

Signals which have an entry in the Default Signal column in the above table are multiplexed. Their operation depends on AT commands.

The following table gives you the input impedance. These values only apply when the signals are configured as input signals.

Parameter Min. Typ. Max. Units

Input impedance (IO1 - IO4) (pull-up) 20 39 100 kΩ

Input impedance (IN5) 100 kΩ

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2. SYSTEM CONNECTOR INTERFACE

2.14 General Purpose Analogue I/O Ports

Pin Signal Dir Description

20 DAC O Digital to analogue conversion output

26 ADC1 I Analogue to digital conversion input 1

27 ADC2 I Analogue to digital conversion input 2

28 ADC3 I Analogue to digital conversion input 3

The module is able to convert digital to analogue signals and vice versa.

2.14.1 Digital to Analogue Converter - DAC

The DAC is an 8-bit converter. Conversion takes place when an AT command is sent to the module. The module sends the resulting analogue value to the DAC pin.

DAC output electrical characteristics are given in the following table.

Parameter Limit Units

Resolution 8 Bits

Output voltage for code = 0

Output voltage for code = 255

Nominal step size

Absolute error

Output wide-band noise and clock feed-through 0-1.1MHz

Power-supply rejection ratio 50Hz - 10kHz ≥ 40 dB

Conversion rate ± 0.5LSB

Output buffer impedance when disabled ≥ 50 kΩ

Output current source or sink ≥ 1 mA

Current consumption (active) ≤ 1.0 mA

(2.75a x 0.05) ± 0.05

(2.75a x 0.95) ± 0.05

(2.75a x 0.9)/256

≤ ± 0.5 mV

≤0.5 mV

≤2 (Load A)

≤50 (Load B)

rms

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a. Tolerance on this internal voltage is ±5 % b. Referred to the ideal conversion characteristic. c. See Figure 2.9, page 64

GM47/GM48 INTEGRATOR’S MANUAL

DAC

100 - 200pF

DGND

DAC

10nF

1nF

DGND

Figure 2.9 DAC loads

2.14.2 Analogue to Digital Converters 1, 2 and 3 - ADCx

The ADC is an 8-bit converter. An analogue value applied to any of the ADC pins is converted and stored in a register inside the module. When the appropriate AT command is received by the module, the digital value stored in the register is read.

ADC electrical characteristics are shown in the table below.

Parameter Min. Max. Units

100k

Load A

Load B

Resolution 8 8 Bits

Input voltage for 0000 0000 word 0

Input voltage for 1111 1111 word

Differential Non-Linearity (DNL) ±0.75 LSB

Overall Non-Linearity (INL) ±0.60 LSB

Absolute accuracy ±1.5 LSB

Input impedance 1 MΩ

Average supply current (continuous conversion)

External source impedance 50 kΩ

0.99 x 2.75

0.01 x 2.75

2.75

1 mA

a. Tolerance on this internal voltage is ±5 %

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2. SYSTEM CONNECTOR INTERFACE

2.15 External I 2C Serial Control Bus

Note! The I

C bus is currently not supported by the software

Pin Signal Dir Description

29 SDA I/O

30 SCL O

I2C serial data

I2C serial clock

The external I2C bus consists of two signals, SDA and SCL. This bus

is isolated from the module’s internal I operation of the module, even if the external I

C bus to ensure proper

C bus is damaged.

The electrical characteristics are shown below.

Parameter Min. Typ. Max. Units

Frequency I2C CLK

High or low I2C CLK

Delay time after falling edge of I2C CLK

Transmit

operation

Hold time after falling edge of I2C CLK

Frequency I2C CLK

High or low I2C CLK

81.25 400 kHz

1.2 µs

308 308-

1230

0 ns

400 kHz

1.2 µs

Delay time after falling edge of I2C CLK

Receive

operation

Hold time after falling edge of I2C CLK

2.16 TX_ON - Burst Transmission

Pin Signal Dir Description

35 TX_ON O GSM module to transmit

Burst transmission is the time when a GSM transceiver unit is transmitting RF signals. TX_ON indicates the module is going into transmission mode.

100 ns

0 ns

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2.17 Real Time Clock

Pin Signal Dir Description

25 VRTC - Voltage for the Real Time Clock

The Real Time Clock (RTC) provides the main microprocessor with a time-of-day calendar and alarm, and a one-hundred-year calendar. It’s accuracy is shown in the table below

Parameter Min. Typ. Max. Units

RTC accuracy 20 (52) 40 (104) ppm (s/month)

The Real Time Clock operates in two modes when connected to a separate power supply:

• RTC normal mode: the module is in ON or OFF mode and it is supplied with power (VCC is applied).

• RTC back-up mode: VCC is disconnected and the RTC is maintained by a separate backup power supply connected to the VRTC input (see Figure 2.10 below).

GM47/GM48 INTEGRATOR’S MANUAL

Backup power is provided by a capacitor, golden-capacitor or battery in your application and must be connected to the VRTC pin. During RTC normal operation, the back up source will be charged.

In back-up mode, the back-up source must provide enough power for RTC operation. Refer to the table for the amount of current required.

The following table shows voltage characteristics for both modes.

Parameter Min. Typ. Max. Units

Supply Voltage RTC (normal mode charging the capacitor)

Supply Voltage RTC (back-up mode Capacitor provides the current)

Current drawn 5.0 10.0 µA

1.6 1.8 2.0 V

1.0 1.8 2.0 V

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2. SYSTEM CONNECTOR INTERFACE

If the voltage drops below 1.0 V in back-up mode, the RTC will stop working. The following diagram shows the RTC connections.

VRTC

Backup supply

GM47

DGND

Figure 2.10 RTC connections

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GM47/GM48 INTEGRATOR’S MANUAL

3. Antenna Connector

The module’s antenna connector allows transmission of the radio frequency (RF) signals from the module to an external customersupplied antenna. The connector is a micro-miniature coaxial MMCX surface mounted component. A number of suitable MMCX type, mating plugs are available from the following manufacturers;

• Amphenol;

• Suhner;

• IMS Connector Systems.

The electrical characteristics of the antenna interface are shown below.

Parameter Limit Description

Nominal impedance 50 Ω

Output Power

Static Sensitivity

2 Watt peak (Class 4) Extended GSM900

1 Watt peak (Class 1) GSM1800

Better than –102dBm Extended GSM900

Better than –102dBm GSM1800

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4. HINTS FOR INTEGRATING THE MODULE

4. Hints for Integrating the Module

This chapter gives you advice and helpful hints on how to integrate the GM47 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 module.

• Antenna.

4.1 Safety Advice and Precautions

4.1.1 General

• Always ensure that use of the module is permitted. The module may present a hazard if used in proximity to personal medical electronic devices. As a rule, the module must not be used in hospitals, airports or planes.

4.1.2 SIM Card

• You are responsible for observing your country’s safety standards, and where applicable the relevant wiring rules.

• Never use the module at a gas station, refuelling point, blasting area or in any other environment where explosives may be present.

• Operating the module close to other electronic devices, such as antennas, television sets, and radios may cause electromagnetic interference.

• Never try to dismantle the module yourself. There are no components inside the module that can be serviced by the user. If you attempt to dismantle the module, 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.

• Do not connect any incompatible component or product to the GM47. Note, Sony Ericsson does not warrant against defects, nonconformities or deviations caused thereby.

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• Before handling the SIM card in your application, ensure that you are not charged with static electricity. Use proper precautions to avoid electrostatic discharges. The module must be switched off before the SIM card is installed in your application.

4.1.3 Antenna

GM47/GM48 INTEGRATOR’S MANUAL

• When the SIM card hatch is opened, the SIM card connectors lie exposed under the SIM card holder. CAUTION: Do not touch these connectors! If you do, you may release an electrical discharge that could damage the module or the SIM card.

• When designing your application, the SIM card’s accessibility should be taken into account. We always recommend that you have the SIM card protected by a PIN code. This will ensure that the SIM card cannot be used by an unauthorized person.

• If the antenna is to be mounted outside, consider the risk of lightning. Follow the instructions provided by the antenna manufacturer.

• Never connect more than one module to a single antenna. The module can be damaged by radio frequency energy from the transmitter of another module.

• Like any mobile station, the antenna of the module emits radio frequency energy. To avoid EMI (electromagnetic interference), you must determine whether the application itself, or equipment in the application’s proximity, needs 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 module and antenna may be damaged if either come into contact with ground potentials other than the one in your application. Beware, ground potential are not always what they appear to be.

• In the final application, the antenna must be positioned more than 20cm away from human bodies. When this rule cannot be applied, the application designer is responsible for providing the SAR measurement test report and declaration.

4.2 Installation of the Module

4.2.1 Where to Install the Module

There are several conditions which need to be taken into consideration when designing your application as they might affect the module and its function. They are:

Environmental Conditions

The module 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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4. HINTS FOR INTEGRATING THE MODULE

Signal Strength

The module 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 module is to a radio base station. You must ensure that the location at which you intend to use the module, 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 4.3.5, page 74.

When an application is completed, you can verify signal strength by issuing the AT command AT+CSQ. See “AT+CSQ Signal Strength”, page 126.

Tip! Before installing the module, use an ordinary mobile telephone to check

a possible location for it. In determining the location for the module and antenna, you should consider signal strength as well as cable length

Connection of Components to GM47

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 module or equipment.

Network and Subscription

• Before your application is used, you must ensure that your chosen network provides the necessary telecommunication services. Contact your service provider to obtain the necessary information.

• If you intend to use SMS in the application, ensure this is included in your (voice) subscription.

• Consider the choice of the supplementary services described in section “2.3.2 Short Message Service”, page 18.

4.2.2 How to Install the Module

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 module to supply the peak currents during burst transmission. See “VCC - Regulated Power Supply Input”, page 45.

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• See section “2.2.1 General Protection Requirements”, page 44.

GM47/GM48 INTEGRATOR’S MANUAL

Grounds

A ground connection is provided at the mounting hole next to the RF connector on the module (see Figure 2.1, page 41). Connect this ground point to the DGND pins of the module 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 module’s internal ground path.

Note! It is recommended that you use a cable with a maximum resistance of

5mΩ for the ground connection.

Note! AGND and DGND are connected at a star point inside the module. They

must not be joined together in your application.

Audio

Use a coupling capacitor in ATMS line if the application does not use the module’s bias voltage. See also “Figure 2.3 Microphone connections to the module”, page 50.

Software Upgrade

4.3 Antenna

4.3.1 General

To upgrade the software, the system connector must be accessible in your application. The pins SERVICE, TD, RD and the power signals are used for this purpose. Please contact customer support for more details.

The antenna is the component in your system that maintains the radio link between the network and the module. 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, you should contact your local antenna manufacturer for additional information concerning antenna type, cables, connectors, antenna placement, and the surrounding area. You should also

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4.3.2 Antenna Type

4. HINTS FOR INTEGRATING THE MODULE

determine whether the antenna needs to be grounded or not. Your local antenna manufacturer might be able to design a special antenna suitable for your the application.

Make sure that you choose the right type of antenna for the module. Consider the following requirements:

• the antenna must be designed for the dual frequency bands in use: EGSM/GSM900/1800 for the GM47 and GSM850/1900 for the GM48;

• the impedance of the antenna and antenna cable must be 50Ω;

• the antenna output-power handling must be a minimum of 2W;

• the VSWR value should be less than 3:1 to avoid damage to the module.

4.3.3 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 50cm.

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 module.

The module’s peak output power can reach 2W. RF field strength varies with antenna type and distance. At 10cm from the antenna the field strength may be up to 70V/m and at 1m it will have reduced to 7V/m.

In general, CE-marked products for residential and commercial areas, and light industry can withstand a minimum of 3V/m.

4.3.4 The Antenna Cable

Use 50Ω impedance low-loss cable and high-quality 50Ω impedance connectors (frequency range up to 2GHz) to avoid RF losses. Ensure that the antenna cable is as short as possible.

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The Voltage Standing-Wave Ratio (VSWR) may depend on the effectiveness of the antenna, cable and connectors. In addition, if you use an adapter between the antenna cable and the antenna connector, it is crucial that the antenna cable is a high-quality, low-loss cable.

Minimize the use of extension cables, connectors and adapters. Each additional cable, connector or adapter causes a loss of signal power.

GM47/GM48 INTEGRATOR’S MANUAL

4.3.5 Possible Communication Disturbances

Possible communication disturbances include the following:

• 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.

• Hand-over occurs as you move from one cell to another in the GSM network. Your mobile application call is transferred from one cell to the next. Hand-over can briefly interfere with communication and may cause a delay, or at worst, a disruption.

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5. Technical Data

Mechanical Specifications

Maximum length 50mm

Maximum width 33 mm

5. TECHNICAL DATA

Maximum thickness 7.15mm (excluding connector pins and

Weight 18.5g

Power supply voltage, normal operation

Voltage 3.6V nominal (3.4V - 4.0V)

Ripple <100mV @ 200kHz; <20mV @ >200kHz

Voltage must always stay within a normal operating range, ripple included

Voice/CSD: <250mA (< 2A peak)

Data (GPRS 4+1); <350 mA (<2 A peak)

Power consumption

Idle mode: <5mA

Switched off: <100µA

Radio specifications

top of antenna connector)

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SIM card

Frequency range GM47: EGSM 900MHz and 1800MHz (dual band)

GM48: GSM 850 MHz and 1900 MHz (dual band)

Maximum RF output power

Antenna impedance 50Ω

3 V or 5 V Support of external SIM card

GM47: 900 MHz, Class 4, 2 W; 1800 MHz Class 1, 1W

GM48: 850 MHz, Class 5, 0.8W; 1900MHz Class 1, 1W

GM47/GM48 INTEGRATOR’S MANUAL

Environmental specifications

Operating temperature range (full specification)

Operating temperature range (working)

Storage temperature range

Maximum relative humidity

Stationary vibration, sinusoidal

Stationary vibration, random

Non-stationary vibration, including shock

-25°C to +55°C

-30°C to +85°C

-40°C to +85°C

95% at +40°C

Displacement: 7.5mm

Acceleration amplitude: 20m/s² and 40 m/s²

Frequency range: 2-8Hz, 8-200Hz, 200-500Hz

Acceleration spectral density (m²/s²):

0.96, 2.88, 0.96

Frequency range: 5-10Hz, 10-200Hz, 200-500Hz, 60min/axis

Shock response spectrum I, peak acceleration: 3 shocks in each axis and direction; 300m/s², 11ms

Shock response spectrum II, peak acceleration: 3 shocks in each axis and direction; 1000m/s², 6ms

Bump Acceleration: 250m/s²

Free fall transportation 1.2m

Rolling pitching transportation

Static load 10kPa

Low air pressure/high air pressure

Data Storage

SMS storage capacity 40 in ME

Phone book capacity 100

Angle: ±35 degrees; period: 8 s

70kPa/106kPa

In addition, the unit can handle as many SMS as the SIM can store

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6. DECLARATION OF CONFORMITY

6. Declaration of Conformity

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GM47/GM48 INTEGRATOR’S MANUAL

7. FCC Certificate

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Part 4: Using AT Commands

Product Photo/Illustration

1. Introduction to AT Commands

1.1 Overview

AT commands, issued from a computer in your application are used to control and implement the functions of the module.

Using AT commands, the following actions are possible:

• Control of DCE

•GPRS

• Call control

• Supplementary Service

• SIM application tool kit

The GM47 contains a large number of Ericsson-specific commands in addition to those implemented in accordance with the GSM and ITU-T recommendations. These commands are provided to enhance the functions of the module. The Ericsson-specific commands are identified by the asterisk that precedes the command (see the syntax description provided below).

Note! Only commands that are listed in the Integrator’s Manual are supported

unless otherwise stated. Other commands may be listed by the module but these are only included for historical or legacy reasons.

1.2 Syntax Description

This section provides a brief description of the syntax used for the GM47, AT command set. See the ITU-T recommendation V.25ter for additional information.

1.2.1 Conventions

In this manual, the following conventions are used to explain the AT commands.

<command> The name of the command that is to be entered.

<parameter> The parameter values that are defined for a certain

<CR> The command line is terminated by the Carriage

<LF> Line feed character or ATS4 command.

command.

Return (or Enter key) or ATS3 command.

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GM47/GM48 INTEGRATOR’S MANUAL

< > The term enclosed in angle brackets is a syntactical

element. The brackets do not appear in the command line.

[ ] Square brackets are used to indicate that a certain item

is optional. For example, sub-parameters of a command or an optional part of a response. The brackets do not appear in the command line.

Value The default values of the supported parameters are

indicated by using bold text when presenting the value.

• Other characters, including ‘?’, ‘=’, parenthesis, etc., appear in commands and responses as written.

• The final result codes OK, ERROR, +CME ERROR: <err> and CMS ERROR:<err> (see sections 1.2.3, AT Response Syntax and

1.3, Error Codes) are not listed under “Possible Responses” for each AT command.

• OK and ERROR are listed if these are the only possible responses.

1.2.2 AT Command Syntax

The AT standard is a line-oriented command language. Each command is made up of the following three elements:

• the prefix;

• the body;

• the termination character.

The prefix consists of the letters “AT”, which are derived from the first two letters of the word attention. The body is made up of the command, the parameter, and if applicable the associated values.

Commands may be combined in the same command line. Spaces between the individual bodies are ignored.

Basic Syntax Command

The format of basic syntax commands is as follows:

AT<command>[=][<parameter>]<CR>

Example! ATL=0<CR> (sets the volume of the speaker)

Additional commands may follow a command on the same command line without any character being required for separation. For the command D parameters, see the description for the command in question.

A version of the basic syntax is:

AT<command><parameter>

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1. INTRODUCTION TO AT COMMANDS

Extended Syntax Command

• AT+<command>= [<parameter>]

• AT*<command>=[<parameter>]

Example! AT+CFUN=0<CR> (powers down the module)

If several values are included in the command, they are separated by commas. It is also possible to enter commands with no values.

Additional commands may follow an extended syntax command on the same command line if a semicolon (; IRA 3B) is inserted after the preceeding extended command as a separator.

Read Command Syntax

The read command is used to check the current values of parameters. Type ‘?’, after the command line:

• AT+<command>?

• AT*<command>?

• AT<command>?

Example! AT+CSCS?<CR> (show current character set)

<CR>“IRA”<CR>(information text response)

<CR>OK<CR>(final result code response)

Test Command Syntax

The test command is used to test whether the command has been implemented or to give information about the type of subparameters it contains. Type ‘?’, after the command line:

• AT+<command>=?

• AT*<command>=?

Example! AT+CPAS=?<CR> (shows supported values for the response

parameters)

<CR>CPAS: (0, 3, 4, 129, 130, 131)<CR> (supported values)

<CR>OK<CR> (final result code)

If the indicated <parameter> is not recognized, the result code ERROR is issued.

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Note! Possible responses are indicated both as <command>:(list of

supported<parameter>) and (in most cases) the actual range of the parameter values.

1.2.3 AT Response Syntax

The default mode response shown below, is in text mode. See the command V for further details.

Possible formats for the result codes are:

• Basic format result code, such as OK. The Basic result code also has a numerical equivalent.

• Extended format result code, prefixed with a plus sign (+) or an asterisk (*):

where the <parameter> is the result code value, note that a single space character separates the colon character from the <parameter>. If several values are included in the result code, they are separated by commas. It is also possible that a result code has no value. The extended syntax result codes have no numerical equivalent. They are always issued in alphabetical form.

GM47/GM48 INTEGRATOR’S MANUAL

– AT+<command>: <parameter >

– AT*<command>: <parameter>

• Information text response may contain multiple lines separated by <CR>. The TE detects the end of informational text responses by looking for a final result code response, such as OK.

There are two types of result code responses as outlined below:

Final Result Code

A final result code indicates to the TE that execution of the command is completed and another command may be issued.

• If you type an implemented AT command, you should get the result code OK.

• If you type an AT command that is not implemented, or which had the wrong parameter or syntax, you will get an error result code. It is ERROR or, for example, +<command> ERROR followed by an error code.

Final result codes are:

Value General meaning

OK Command executed, no errors

ERROR Invalid command or command line too long

NO DIALTONE No dialling possible, wrong mode

BUSY Remote station busy

NO ANSWER Connection completion time-out

NO CARRIER Link not established or disconnected

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1. INTRODUCTION TO AT COMMANDS

Unsolicited Result Code

Unsolicited result codes indicate the occurrence of an event not directly associated with a command being issued from the TE.

1.3 Error Codes

1.3.1 +CME ERROR (Mobile Equipment Error Code)

This final result code is similar to the regular ERROR result code. If +CME ERROR: <err> is the result code for any of the commands in a command line, none of the commands in the same command line will be executed (neither ERROR nor OK result code shall be returned as a result of a completed command line execution). The format of <err> can be either numerical or alphabetical, and is set with the +CMEE command.

The table below provides the numerical values for the parameter <err>.

<err> Description Syntax

0 Phone failure

1 No connection to phone

2 Phone -adaptor link reserved

3 Operation not allowed

4 Operation not supported

5 PH-SIM PIN required

10 SIM not inserted

11 SIM PIN required

12 SIM PUK required

13 SIM failure

14 SIM busy

15 SIM wrong

16 Incorrect password

17 SIM PIN2 required

18 SIM PUK2 required

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20 Memory full

21 Invalid index

22 Not found

23 Memory failure

24 Text string too long

25 Invalid characters in text string

GM47/GM48 INTEGRATOR’S MANUAL

<err> Description Syntax

26 Dial string too long

27 Invalid characters in dial string

30 No network service

31 Network time-out

32 Network not allowed - emergency calls only

100 Unknown

101- 255 Reserved by ETS

1.3.2 +CMS ERROR (Message Service Failure Result Code)

This final result code indicates an error related to mobile equipment or to the network. The operation is similar to the ERROR result code. None of the following commands in the same command line will be executed. Neither ERROR nor OK result code will be returned. ERROR is returned normally when an error is related to syntax or invalid parameters. Nevertheless, it always appears when a command fails.

The syntax is as follows:

+CMS ERROR: <err>

Values for the <err> parameter are described in the following table.

<err> Description

0 - 127 GSM 04.11 Annex E-2 values

128 - 255 GSM 03.40 subclause 9.2.3.22 values

300 ME failure

301 SMS service of ME reserved

302 Operation not allowed

303 Operation not supported

304 Invalid PDU mode parameter

305 Invalid text mode parameter

310 SIM not inserted

311 SIM PIN required

312 PH-SIM PIN required

313 SIM failure

314 SIM busy

315 SIM wrong

316 SIM PUK required

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1. INTRODUCTION TO AT COMMANDS

<err> Description

317 SIM PIN2 required

318 SIM PUK2 required

320 Memory failure

321 Invalid memory index

322 Memory full

330 SMSC address unknown

331 No network service

332 Network time-out

340 No +CNMA acknowledgment expected

500 Unknown error

- 511 Other values in range 256 - 511 are reserved

512- Manufacturer specific

1.4 Examples on How to Use the AT Commands

For many of the more complicated commands, examples are provided after the command’s description. Always refer to the detailed description of the command in question to check valid parameter values, AT command syntax and Response syntax.

1.5 SMS Text Mode

SMS text mode allows users to send SMSs without having to understand how PDUs are constructed. This section describes how to carry out basic operations in text mode and explains the steps that need to be taken.

Basic transmission of SMS

A script which sets the module up is shown below:

AT+CSDH=1 Enable the use of text mode parameters OK AT+CSMP=17,167 Set text mode parameter OK AT+CMGF=1 Switch the module to text mode OK AT+CMGS=“07787154042” Sending an SMS > Test SMSÎ The text must be ended, as in PDU mode, with

h a control-Z character

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GM47/GM48 INTEGRATOR’S MANUAL

+CMGS: 204 Confirmation that the SMS has been sent

sdfjldjfl successfully

Note the following points:

1. Once the CSDH, CSMP and CMGF commands have been carried out they will not need to be initialized for this session.

2. These parameters are saved in NVRAM using the &W command.

Notification of SMS

New message indications are similar to the PDU mode as shown below:

AT+CNMI=3,1 OK

+CMTI: “SM”,2

AT+CNMI=3,2 OK

+CMT: “+447747008670”,“Matt L”,“02/11/19,09:58:42+00”,145,36,0,0,“+447785016005” ,145,8 Test sms

Please note that currently the CMT indication does not have a CR/LF appended to the end of the SMS data. If the SMS contains one it will be displayed. Otherwise the application will need to recognize the CMT line and the length character, in this case 8 and count the characters into its input buffer.

Reading messages

Reading messages is performed as in PDU mode.

AT+CMGR=2 +CMGR: “REC UNREAD”,“+447747008670”,“Matt L”,“02/11/ 19,09:57:28+00”,145,36,0,0,“ +447785016005”,145,8 Test sms

Listing messages

In PDU mode numbers are used as parameters. In text mode letters are used instead and these must be upper case as the module does not accept lower case commands. See the example below:

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1. INTRODUCTION TO AT COMMANDS

AT+CMGL=“ALL” +CMGL: 1,“REC READ”,“+447747008670”,“Matt L”,“02/10/ 21,10:07:23+04”,145,4 Test +CMGL: 2,“REC READ”,“+447747008670”,“Matt L”,“02/11/ 19,09:57:28+00”,145,8 Test sms +CMGL: 3,“REC UNREAD”,“+447747008670”,“Matt L”,“02/11/ 19,09:58:06+00”,145,8 Test sms

1.6 GPRS Communication

To initiate a session with the network you need to setup a ‘data account’ on the module, using the AT+CGDCONT command. You need to specify the correct Access Point Name (APN), which you get from your service provider. The command below sets up the data account to access Vodafone’s internet server.

AT+CGDCONT=1,“IP”,“internet”

After this you need to use the ATD command to make a GPRS call. The example below dials into the network using account number 1 (the GM47 supports up to 10):

ATD*99***1#

If the module is able to connect to the APN it will return a CONNECT. At this point PPP/IP packets should be sent by the application, to negotiate an IP address. The easiest way of doing this whole thing is to create a windows dial up networking session with the dial string *99***1# after creating the data account on the module.

It is not possible to call a mobile station using GPRS at present. The reason for this is that unless a PDP context has been setup it has not been assigned an IP address by the GGSN/DHCP server and as a result it cannot be addressed other than through its phone number (defeating the object of using IP). This is specified in GSM 7.60 or 3GPP 27.060.

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2. Call Control

2.1 AT+CPIN PIN Control

See 3.26, AT+CPIN PIN Control

2.2 ATA Answer Incoming Call

Description Command Possible Responses

Answer an incoming call

ATA •CONNECT

•CONNECT <text>

•NO CARRIER

•ERROR

•OK

Answer and initiate connection to an incoming call.

<text> Description

19200 Connected with data bit rate of 19200 bits/s (HSCSD)

9600 Connected with data bit rate of 9600 bits/s

4800 Connected with data bit rate of 4800 bits/s

2400 Connected with data bit rate of 2400 bits/s

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2.3 ATD Dial

Description Command Possible Responses

GM47/GM48 INTEGRATOR’S MANUAL

• Originate a call and dial the phone number specified in the command as <dial_string> or

•Do a network detect

Dial the phone number stored in the mobile phone which is located by the index

Dial the phone number stored in the SIM card which is located by the index

Dial the phone number stored in the Last dialled number list on the SIM card, which is located by the index The most recently dialled number is assumed to have ="1"

ATD<dial_string>[;] •CONNECT

•CONNECT <text>

•NO CARRIER

•ERROR

• NO DIAL TONE

•BUSY

•OK

ATD>ME[;] •CONNECT

•CONNECT <text>

•NO CARRIER

•ERROR

• NO DIAL TONE

•BUSY

•OK

ATD>SM[;] •CONNECT

•CONNECT <text>

•NO CARRIER

•ERROR

• NO DIAL TONE

•BUSY

•OK

ATD>LD[;] •CONNECT

•CONNECT <text>

•NO CARRIER

•ERROR

• NO DIAL TONE

•BUSY

•OK

Redial the last phone number dialled.

Ericsson specific

ATDL[;] ...

Used to initiate a phone connection, which may be data or voice (phone number terminated by semicolon). The phone number used to establish the connection will consist of digits and modifiers, or a stored number specification.

If the dial string is followed by a semicolon this informs the phone that the number is a voice rather than a data number.

If the dial string is omitted, and the semicolon included, the command instructs the ME to do a network detect. If the network is available OK is returned.

Abortability:

Aborting an ATD command is accomplished by the transmission from the DTE to the DCE of any character. A single character shall be sufficient to abort the command in progress; however, characters

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2. CALL CONTROL

transmitted during the first 125 milliseconds after transmission of the termination character are ignored. This is to allow the DTE to append additional control characters such as line feed after the command line termination character.

<dial_string> Description

“0 1 2 3 4 5 6 7 8 9 * # +”

W The W modifier is ignored but is included only for

, The comma modifier is ignored but is included only for

T The T modifier is ignored but is included only for

P The P modifier is ignored but is included only for

CONNECT If connection is successfully established, only valid for data

CONNECT <text>

NO CARRIER Unable to establish a connection or the connection

ERROR An unexpected error occurred while trying to establish the

Valid characters for origination

compatibility purposes

Description

connections

If connection is successfully established, only valid for data connections

attempt was aborted by the user

connection

Example

NO DIALTONE The mobile phone is being used for a voice call or is not

within coverage of the network

BUSY The phone number called is engaged, valid for data and

voice connections

OK Only valid for voice connections

<text> Description

19200 Connected with data bit rate of 19200 bits/s (HSCSD)

9600 Connected with data bit rate of 9600 bits/s

4800 Connected with data bit rate of 4800 bits/s

2400 Connected with data bit rate of 2400 bits/s

ATD07747008670; OK AT+VTS=“4” OK

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GM47/GM48 INTEGRATOR’S MANUAL

2.4 ATH Hang up

Description Command Possible Responses

Terminate the call ATH •ERROR

Signals the MS to terminate an active call.

2.5 ATL Monitor Speaker Loudness

Description Command Possible Responses

•OK

Request monitor speaker loudness

Show the current setting

Show if the command is supported

ATL[<value>] •OK

ATL? L: <value>

ATL=? L: (list of supported

Included for compatibity. No functionality

<value> Description

0 -14dB (minimum speaker volume)

1 -10.5dB

2 -7dB

3 -3.5dB

4 0dB (nominal speaker volume)

5 3.5dB

6 7dB

7 10.5dB

•ERROR

<values>s)

8 14dB (maximum speaker volume)

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2. CALL CONTROL

2.6 ATO Return to Online Data Mode

Description Command Possible Responses

Return to on-line data mode

ATO[<value>] •CONNECT

Switch to the on-line data mode from the on-line command mode during an active call. Returns ERROR when not in on-line command mode.

<value> Description

0 Return to on-line data state from on-line command

2.7 ATP Select Pulse Dialling

Description Command Possible Responses

Select pulse dialling ATP OK

Show if the command is supported

Command is ignored, and is implemented for compatibility only. It would normally cause the next D command to use pulses when dialling the number.

ATP=? OK

•CONNECT <text>

•NO CARRIER

•ERROR

2.8 ATT Select Tone Dialling

Description Command Possible Responses

Select tone dialling ATT OK

Show if the command is supported

Command is ignored, and is implemented for compatibility only. It would normally cause the next D command to use tones when dialling the number.

ATT=? OK

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GM47/GM48 INTEGRATOR’S MANUAL

2.9 ATX Call Progress Monitoring Control

Description Command Possible Responses

Set call progress monitoring control

Show the current setting

Show if the command is supported

ATX=[<n>] or ATX[<n>] •OK

•ERROR

ATX? X: <n>

ATX=? X: (list of supported

<n>s)

Defines if the dial-tone detection and busy-tone detection are to be used during a call set-up.

<n> Description

0 Body and dial tone detection off. No line speed reported

1 Body and dial tone detection off. Report line speed on

2 Busy detection on and dial tone detection off. Report line

3 Busy detect off and dial tone on. Report line speed on

4 Busy detect and dial tone detection on. Report line

on connection

connection

speed on connection

connection

speed on connection. Default value

Note! If there is no network available the <n> parameter will decide if “NO

DIALTONE” or “NO CARRIER” will be returned. If the call recipient is busy, the <n> parameter will decide if “BUSY” or “NO CARRIER” will be returned.

2.10 AT+CHUP Hang up Call

Description Command Possible Responses

Request hang-up AT+CHUP •OK

Show if the commands is supported

Causes the TA to hang-up the current call of the ME.

If no call is present, but an incoming call is notified, then the incoming call shall be rejected.

•ERROR

AT+CHUP=? •OK

•ERROR

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2.11 AT+CMOD Call Mode

Description Command Possible Responses

Request Call Mode AT+CMOD=[<mode>] •OK

2. CALL CONTROL

•ERROR

Show the current setting

Show if the command is supported

AT+CMOD? •+CMOD: <mode>

•OK

•ERROR

AT+CMOD=? • +CMOD: (list of

supported <mode>s)

•OK

•ERROR

Selects the call mode of further dialing commands (D) or for next answering command (A). Mode can be either single or alternating. In this ETS, terms “alternating mode” and “alternating call” refer to all GSM bearer and teleservices that incorporate more than one basic service (voice, data, fax) within one call.

When single mode is selected the call originating and hang-up procedures are similar to procedures specified in ITU-T Recommendations V.25ter, T.31 and T.32. In GSM there can be voice followed by data (refer to GSM 02.02), alternating voice/data (refer to GSM 02.02) and alternating voice/fax calls (refer to GSM 02.03).

Test command returns values supported by the TA as a compound value.

Note! +CMOD is set to zero after a successfully completed alternating mode

call. It is set to zero also after a failed answering. The power-up, factory (&F) and user resets (Z), also set the value to zero. This reduces the possibility that alternating mode calls are originated or answered accidentally.

<mode> Description

0 Single mode. Default value.

In order to avoid accidental originating or answering of alternating calls is <mode> set to single mode in following cases:

- after a successfully completed alternating mode call;

- after a unsuccessful answering;

- after successfully execution of the commands &F and Z

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GM47/GM48 INTEGRATOR’S MANUAL

2.12 AT+CVHU Voice Hang-Up

Description Command Possible Responses

Set Command +CVHU=[<mode>] •+CME ERROR: <err>

•OK

Show the current setting

Show if the command is supported

+CVHU? •+CVHU: <mode>

+CVHU=? +CVHU: (list of

Selects whether ATH or “drop DTR” causes a voice connection to be disconnected or not. Voice connection also includes alternating mode calls that are currently in voice mode.

Note! When <mode>=2, this command must be viewed in conjunction with

the V.25ter command &D, or &D will be ignored.

<mode> Description

0 “Drop DTR” ignored but OK response given. ATH

1 “Drop DTR” and ATH ignored but OK response given

2 “Drop DTR” behavior according to &D setting. ATH

disconnects

disconnects. Default value

2.13 AT+VTS DTMF and Tone Generation

•+CME ERROR: <err>

supported <mode>s)

Description Command Possible Responses

Request transmission of DTMF tone(s)

Show if the command is supported

AT+VTS=<DTMF> OK

ERROR

AT+VTS=? OK

ERROR

This command allows the transmission of DTMF tones. These tones may be used, for example, when announcing the start of a recording period. The command is write only. In this profile of commands, the command does not operate in data or fax modes of operation (+FCLASS=0,1,2-7).

Note! The ATD-command is used only for dialing. It is not possible to

generate arbitrary DTMF tones using the ATD command.

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2. CALL CONTROL

Note! The AT+VTS command is used only during a voice call.

<DTMF> Description

ASCII character string

An ASCII character string with entries in the set 0-9, #, *, AD separated by commas. Each entry is interpreted as a single ASCII character. Example: The string “8,9” sends two DTMF tones, “8” followed by “9”

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GM47/GM48 INTEGRATOR’S MANUAL

100

LZT 123 7263 R1C

Sony Ericsson GM48, GM47 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Part 1: Overview

1. Introduction

1.1 Target Users

1.2 Prerequisites

1.3 Manual Structure

Part 1- Overview

Part 2 - Developer’s Kit

Part 3 - Integrating the Module

Part 4 - Using AT Commands

2. GM47/GM48 MODULES

2.1 About the GM47/GM48 Family

2.2 GM47 in a Communication System

2.3 Features

2.3.1 Types of Mobile Station

2.3.2 Short Message Service

2.3.3 Voice Calls

2.3.4 Data

2.3.5 SIM Card

2.3.6 Average Power Consumption

2.3.7 Other Features

2.4 Service and Support

2.4.1 Web Pages

2.4.2 Integrator’s Manual

2.4.3 Developer’s Kit

2.5 Precautions

3. Abbreviations

Part 2: Developer’s Kit

1. Introduction

1.1 Overview

1.2 Contents of the Kit

1.3 General Functioning of the Kit

2. USING THE DEVELOPER’S KIT

2.1 Start up Check List

2.2 Developer’s Board Overlay

2.3 Jumpers, Switches and Connectors

2.4 System Connector Pin Assignments

Part 3: Integrating the Module

1. Mechanical Description

1.1 Interface Description

1.2 Physical Dimensions

2. System Connector Interface

2.1 Overview

2.2 General Electrical and Logical Characteristics

2.2.1 General Protection Requirements

2.3 Grounds

2.3.1 Analogue Ground - AGND

2.3.2 Digital Ground - DGND

2.4 VCC - Regulated Power Supply Input

2.5 ON/OFF and External Power Signal

2.5.1 Switching the module ON and OFF

2.5.2 VIO - 2.75V Supply

2.6 Analogue Audio

Hands-free Mode

Portable Hands-free Mode

2.6.1 Audio To Mobile Station - ATMS

2.6.2 Audio From Mobile Station - AFMS

2.6.3 Microphone Signals

2.6.4 Speaker Signals

2.7 PCM Digital Audio

Electrical characteristics

2.7.1 PCM Data Format

13-Bit PCM Mode

16-Bit PCM Mode

PCM Timing Diagrams

2.8 Serial Data Interfaces

2.8.1 UART1 (RS232) - RD, TD, RTS, CTS, DTR, DCD and RI

2.8.2 Serial Data Signals - RD, TD

Serial Data From Module (RD)

Serial Data To Module (TD)

2.8.3 Control Signals - RTS, CTS, DTR, DCD, RI

Switching times for RTS and CTS

Request to Send (RTS)

Clear To Send (CTS)

Data Terminal Ready (DTR)

Data Carrier Detect (DCD)