Sony Ericsson Network Card GS64 User Manual

GS64 GSM/GPRS Modem  
Integrators Manual  
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Contents  
Overview...................................................................................................... 8  
1 Introduction ........................................................................................... 9  
1.1  
1.2  
1.3  
1.4  
1.5  
TARGET USERS.......................................................................................................... 9  
PREREQUISITES ......................................................................................................... 9  
MANUAL STRUCTURE................................................................................................ 9  
NOTATION ............................................................................................................. 10  
ACKNOWLEDGEMENTS............................................................................................ 10  
2 GS64 WIRELESS MODEM........................................................................ 11  
2.1  
2.2  
2.3  
ABOUT THE GX64 FAMILY....................................................................................... 11  
WIRELESS MODEMS IN A COMMUNICATION SYSTEM................................................. 11  
FEATURES............................................................................................................... 13  
2.3.1  
2.3.2  
TYPES OF MOBILE STATION.............................................................................. 13  
SHORT MESSAGE SERVICE ................................................................................ 14  
VOICE CALLS ................................................................................................... 14  
DATA .............................................................................................................. 14  
GPRS MULTI-SLOT SUPPORT............................................................................. 15  
SIM CARD........................................................................................................ 15  
POWER CONSUMPTION..................................................................................... 15  
OTHER FEATURES ............................................................................................ 16  
2.3.3  
2.3.4  
2.3.5  
2.3.6  
2.3.7  
2.3.8  
2.4  
2.4.1  
2.4.2  
SERVICE AND SUPPORT........................................................................................... 16  
WEB PAGES ...................................................................................................... 16  
AT COMMANDS MANUAL................................................................................. 16  
M2MPOWER APPLICATION GUIDE ..................................................................... 17  
DEVELOPER’S KIT............................................................................................. 17  
2.4.3  
2.4.4  
2.5  
2.6  
PRECAUTIONS......................................................................................................... 17  
GUIDELINES FOR SAFE AND EFFICIENT USE .............................................................. 17  
2.6.1  
2.6.2  
2.6.3  
2.6.4  
GENERAL USAGE .............................................................................................. 18  
RADIO FREQUENCY (RF) EXPOSURE AND SAR .................................................... 18  
PERSONAL MEDICAL DEVICES........................................................................... 19  
DISPOSAL OF OLD ELECTRONIC EQUIPMENT..................................................... 19  
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3 ABBREVIATIONS.................................................................................... 20  
Integrating the Wireless Modem ................................................................. 22  
4 Mechanical Description......................................................................... 23  
4.1  
4.2  
INTERFACE DESCRIPTION........................................................................................ 23  
PHYSICAL DIMENSIONS ........................................................................................... 25  
5 System Connector Interface.................................................................. 26  
5.1  
5.2  
5.3  
5.4  
OVERVIEW .............................................................................................................. 26  
DEALING WITH UNUSED PINS................................................................................... 30  
GENERAL ELECTRICAL AND LOGICAL CHARACTERISTICS.......................................... 31  
GROUNDS............................................................................................................... 32  
5.4.1  
ANALOGUE GROUND (AREF)............................................................................. 32  
5.4.2  
COMMON GROUND (GND)................................................................................ 33  
5.5  
5.6  
5.7  
REGULATED POWER SUPPLY INPUT (VCC)................................................................. 34  
VOLTAGE REFERENCE (VREF) ................................................................................... 36  
BATTERY CHARGING INPUT (CHG_IN) ...................................................................... 37  
5.7.1  
5.7.2  
5.7.3  
CHARGING PROCESS ........................................................................................ 38  
SERIES DIODE................................................................................................... 39  
BATTERY SELECTION........................................................................................ 39  
5.8  
5.8.1  
5.8.2  
POWERING THE MODULE ON AND OFF (PON_L, PON_H) ........................................... 43  
VREF AS A POWER INDICATOR.......................................................................... 43  
MODULE ON & OFF SEQUENCE ......................................................................... 44  
POWER ON TIMING ...................................................................................... 45  
TURNING THE MODULE OFF ............................................................................. 46  
5.8.2.1  
5.8.3  
5.9  
5.9.1  
5.9.2  
ANALOGUE AUDIO.................................................................................................. 48  
AUXILIARY AUDIO TO MOBILE STATION (AUXIP, AUXIN) .................................... 49  
AUXILIARY AUDIO FROM MOBILE STATION (AUXOP, AUXON)............................. 49  
MICROPHONE SIGNALS (MICIP, MICIN).............................................................. 50  
SPEAKER SIGNALS (EARP, EARN) ....................................................................... 51  
5.9.3  
5.9.4  
5.10  
PCM DIGITAL AUDIO (SSP) ................................................................................... 51  
5.10.1 PCM DATA FORMAT......................................................................................... 51  
5.11  
SERIAL DATA INTERFACES ................................................................................... 53  
5.11.1 UART1............................................................................................................. 53  
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5.11.2 SERIAL DATA SIGNALS (DTM1, DFM1)............................................................... 54  
5.11.2.1 SERIAL DATA FROM WIRELESS MODEM (DFM1) .............................................. 54  
5.11.2.2 SERIAL DATA TO WIRELESS MODEM (DTM1) .................................................. 54  
5.11.3 CONTROL SIGNALS (RTS1, CTS1, DTR1, DSR1, DCD1, RI).................................. 55  
5.11.3.1 HARDWARE FLOW CONTROL RTS1 AND CTS1 ............................................... 55  
5.11.3.2 REQUEST TO SEND (RTS1)............................................................................. 55  
5.11.3.3 CLEAR TO SEND (CTS1) ................................................................................ 55  
5.11.3.4 DATA TERMINAL READY (DTR1).................................................................... 55  
5.11.3.5 DATA SET READY (DSR1) .............................................................................. 56  
5.11.3.6 DATA CARRIER DETECT (DCD1) .................................................................... 56  
5.11.3.7 RING INDICATOR (RI).................................................................................... 56  
5.11.4 UART2 (DTM2, DFM2)...................................................................................... 57  
5.11.4.1 TRANSMITTED DATA (DTM2)........................................................................ 57  
5.11.4.2 RECEIVED DATA (DFM2)................................................................................ 57  
5.11.4.3 REQUEST TO SEND (RTS2)............................................................................. 57  
5.11.4.4 CLEAR TO SEND (CTS2) ................................................................................ 57  
5.11.5 USB ................................................................................................................. 58  
5.11.6 SIM CARD INTERFACE ...................................................................................... 59  
5.11.7 SIM DETECTION (SIMDET)................................................................................. 60  
5.12  
5.13  
SYNCHRONOUS SERIAL PORT (SSP) INTERFACE [TO BE IMPLEMENTED IN A FUTURE RELEASE] ...... 60  
MEMORY CARD INTERFACE (SD/MMC) [TO BE IMPLEMENTED IN A FUTURE RELEASE]........... 61  
5.13.1 MULTIMEDIA CARD SYSTEM ............................................................................. 61  
5.13.2 SECURE DIGITAL MEMORY CARD SYSTEM ......................................................... 62  
5.14  
SERVICE/PROGRAMMING..................................................................................... 63  
LED [TO BE IMPLEMENTED IN A FUTURE RELEASE] .............................................................. 63  
GENERAL PURPOSE IO.......................................................................................... 65  
5.15  
5.16  
5.16.1 EMBEDDED APPLICATIONS ............................................................................... 66  
5.17  
KEYBOARD SIGNALS (KEYROW, KEYCOL) .............................................................. 67  
ANALOGUE TO DIGITAL CONVERTERS (ADIN1, ADIN2, ADIN3, ADIN4).................. 67  
BURST TRANSMISSION (TX_ON)............................................................................ 69  
REAL TIME CLOCK............................................................................................... 69  
5.18  
5.19  
5.20  
5.20.1 REAL TIME CLOCK BACKUP SUPPLY (VRTC) ....................................................... 70  
5.20.2 RTC ALARM (ALARM) ....................................................................................... 71  
5.20.2.1 ALARM OUTPUT FROM THE MODULE ............................................................ 71  
5.20.3 ALARM UTILIZATION AS A WAKE-UP................................................................. 72  
5.21  
RINGER OUTPUT (BUZZER) [TO BE IMPLEMENTED IN A FUTURE RELEASE] ............................ 73  
6 Antenna Connector .............................................................................. 74  
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7 Hints for Integrating the Wireless Modem............................................. 75  
7.1  
SAFETY ADVICE AND PRECAUTIONS ........................................................................ 75  
7.1.1  
GENERAL ......................................................................................................... 75  
SIM CARD............................................................................................................... 76  
ANTENNA............................................................................................................... 76  
INSTALLATION OF THE WIRELESS MODEM................................................................ 77  
7.2  
7.3  
7.4  
7.4.1  
7.4.1.1  
7.4.1.2  
7.4.1.3  
7.4.1.4  
7.4.2  
7.4.2.1  
7.4.2.2  
7.4.2.3  
7.4.2.4  
WHERE TO INSTALL THE WIRELESS MODEM....................................................... 77  
ENVIRONMENTAL CONDITIONS..................................................................... 77  
SIGNAL STRENGTH ....................................................................................... 77  
CONNECTION OF COMPONENTS TO WIRELESS MODEM.................................. 78  
NETWORK AND SUBSCRIPTION...................................................................... 78  
HOW TO INSTALL THE WIRELESS MODEM.......................................................... 79  
POWER SUPPLY............................................................................................. 79  
GROUNDS .................................................................................................... 79  
AUDIO.......................................................................................................... 79  
SOFTWARE UPGRADE.................................................................................... 79  
7.5  
7.5.1  
7.5.2  
ANTENNA............................................................................................................... 80  
GENERAL ......................................................................................................... 80  
ANTENNA TYPE................................................................................................ 80  
ANTENNA PLACEMENT..................................................................................... 81  
THE ANTENNA CABLE....................................................................................... 81  
POSSIBLE COMMUNICATION DISTURBANCES..................................................... 81  
7.5.3  
7.5.4  
7.5.5  
8 Embedded Applications........................................................................ 83  
8.1  
FEATURES............................................................................................................... 83  
8.2  
IMPLEMENTATION................................................................................................... 83  
8.2.1  
8.2.2  
LIMITATIONS ................................................................................................... 83  
M2MPOWER IDE (INTEGRATED DEVELOPMENT ENVIRONMENT).......................... 84  
9 TCP/IP Stack......................................................................................... 85  
9.1  
IMPLEMENTATION................................................................................................... 85  
10 Technical Data................................................................................... 86  
10.1  
10.2  
10.3  
MECHANICAL SPECIFICATIONS............................................................................. 86  
POWER SUPPLY VOLTAGE, NORMAL OPERATION................................................... 87  
RADIO SPECIFICATIONS ....................................................................................... 87  
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10.4  
10.5  
SIM CARD............................................................................................................ 87  
ENVIRONMENTAL SPECIFICATION ........................................................................ 88  
11 Regulatory Notices ............................................................................ 90  
12 Introduction to the Universal Developer’s Kit..................................... 92  
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Overview  
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1 Introduction  
1.1 Target Users  
The GS64 wireless modems are designed to be integrated into machine-to-machine  
or man-to-machine communications applications.  
They are intended to be used by manufacturers, system integrators, applications  
developers and developers of wireless communications equipment.  
1.2 Prerequisites  
It is assumed that the person integrating the wireless modem into an application has  
a basic understanding of the following:  
GSM networking;  
Wireless communication and antennas (aerials)  
AT commands  
ITU-T standard V.24/V.28  
Micro controllers and programming  
Electronic hardware design  
1.3 Manual Structure  
The manual is composed of three parts:  
Part 1- Overview  
This section provides a broad overview of the Gx64 family and includes a list of  
abbreviations used in the manual.  
Part 2 - Integrating the Wireless modem  
This section describes each of the signals available on the GS64 wireless modem,  
along with mechanical information. The section also provides you with design  
guidelines and what is needed to commercialize an application from a regulatory  
point of view.  
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Part 3 – Developer’s Kit  
This section lists the contents of the Developer’s Kit and provides the information to  
setup and use the equipment.  
1.4 Notation  
The following symbols and admonition notation are used to draw the readers  
attention to notable, or crucially-important information.  
Note  
Draws the readers attention to pertinent, useful or interesting  
information  
NOTE  
Tip  
Provides advice, suggestions, guidance or recommendations which  
augment the formal text  
TIP  
Caution  
Cautionary information must be heeded, it draws the readers attention  
to the need for understanding, care or watchfulness in relation to the  
information provided  
CAUTION  
Warning  
Notes marked warning must be heeded, they alert readers to  
precautionary measures, risks, hazards or safety information which  
!
WARNING  
directly effects equipment function, warranty or personnel safety  
Danger  
This information must be heeded, it identifies information and  
cautionary behavior that otherwise ignored could result in catastrophic  
equipment failure, bodily injury or death  
DANGER  
1.5 Acknowledgements  
Parts of this document, including text passages, tables and illustrations, are  
reproduced from copyright information by kind permission of Agere Systems Inc.  
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2 GS64 WIRELESS MODEM  
2.1 About the Gx64 Family  
The Sony Ericsson Gx64 family of devices are Quad Band GSM/GPRS wireless modems  
operating in the GSM 850/900/1800/1900 bands.  
The products belong to a new generation of Sony Ericsson wireless modems, and are  
intended to be used in machine-to-machine applications and man-to-machine  
applications. They are used when there is a need to send and receive data (by SMS,  
CSD, or GPRS), and make voice calls over the GSM network.  
Two software variants of the Gx64 devices exist. One variant is designed to be  
controlled from a micro-controller situated on the host application. The other  
variant offers the option to run applications embedded onto the module itself. When  
using the embedded application version the controlling script can be run internal to  
the module, with or without the use of an external control.  
A typical application, involves a micro-controller and a wireless modem, in which the  
micro-controller sends AT commands to the wireless modem via an RS232  
communications link.  
2.2 Wireless modems in a Communication System  
Figure 2.2-1 and Figure 2.2-2 illustrate the main blocks of a wireless communication  
system using the wireless modem. Figure 2.2-1 shows the communication system  
when the script is embedded on the wireless modem and Figure 2.2-2 shows the  
communication system when a micro-controller is used. They also show the  
communication principles of the system and the interface between the wireless  
modem and the application. The definitions in the figures, as used elsewhere in this  
manual, are in accordance with the recommendations of 3GPP TS 27.007.  
The MS (mobile station) represents the wireless modem and SIM card. The  
wireless modem excluding SIM card, is known as the ME (mobile equipment).  
The DTE (data terminal equipment) is the controlling application. This can be  
either an external host or an internal embedded application  
The DCE (data circuit terminating equipment) is the serial communication  
interface of the MS.  
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MS  
GSM  
NETWORK  
SIM  
SIM  
GSM  
ENGINE  
DC  
POWER  
STATUS &  
RESPONSE  
EMBEDDED  
APPLICATION  
DCE  
DTE  
COMMAND  
& CONTROL  
Figure 2.2-1 Main Blocks in a Wireless System (embedded application)  
MS  
GSM  
NETWORK  
SIM  
GR64  
SIM  
GSM  
ENGINE  
DC  
POWER  
STATUS &  
RESPONSE  
DTE  
DCE  
COMMAND  
& CONTROL  
Figure 2.2-2 Main Blocks in a Wireless System (external micro-controller)  
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In accordance with the recommendations of ITU-T (International Telecommunication  
Union - Telecommunications Standardization Sector) V.24, the TE communicates with  
the MS over a serial interface.  
The functions of the wireless modem follow the recommendations provided by 3GPP  
(3rd Generation Partnership Project) and ITU-T. 3GPP is a collaboration agreement  
that was established in December 1998. The collaboration agreement brings  
together a number of telecommunications standards bodies which are known as  
Organizational Partners. The current Organizational Partners are ARIB, CCSA, ETSI,  
ATIS, TTA, and TTC.  
3GPP specifies a set of AT commands for controlling the GSM element of the wireless  
modem; these commands are supplemented by Sony Ericsson specific commands.  
To find out how to work with AT commands, see the AT Commands Manual.  
2.3 Features  
The wireless modem performs a set of telecom services (TS) according to 3GPP  
release 99 and ITU-T. The functions of the wireless modem are implemented by  
issuing AT commands over a serial interface.  
2.3.1 Types of Mobile Station  
The GS64 is a fully Quad Band capable GSM/GPRS mobile station with the  
characteristics shown in the table below.  
Feature  
GSM850  
824-849  
869-894  
200kHz  
124  
E-GSM900  
880-915  
925-960  
200kHz  
174  
GSM1800  
GSM1900  
Tx  
Rx  
1710-1785 1850-1910  
1805-1880 1930-1990  
200kHz  
374  
Frequency range (MHz)  
Channel spacing  
Number of channels  
200kHz  
299  
Number of Time Division slots  
Duplex spacing  
8
8
8
8
45MHz  
4 (2W)  
45MHz  
4 (2W)  
95MHz  
1 (1W)  
80MHz  
1 (1W)  
GSM power class  
Modulation  
GMSK  
Receive sensitivity  
GPRS multi-slot class  
<-102dBm at antenna connector  
Class 10  
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2.3.2 Short Message Service  
The wireless modem supports the following SMS services:  
Sending; MO (mobile-originated) with both PDU (protocol data unit) and text  
mode supported  
Receiving; MT (mobile-terminated) with both PDU and text mode supported  
CBM (cell broadcast message); a service in which a message is sent to all  
subscribers located in one or more specific cells in the GSM network (for  
example, traffic reports)  
SMS status report according to 3GPP TS 23.40  
The maximum length of a text mode SMS message is 160 characters using 7-bit  
encoding. The wireless modem supports up to six concatenated messages to extend  
this function. Concatenation is performed by the host application.  
2.3.3 Voice Calls  
The wireless modem offers the capability of MO (mobile originated) and MT (mobile  
terminated) voice calls, as well as supporting emergency calls. Multi-party, call  
waiting and call divert features are available. Some of these features are network-  
operator specific.  
For the inter-connection of audio, the wireless modem offers both single ended and  
balanced analogue input and output lines. Direct interface to the digital PCM (pulse  
code modulation) bus used within the wireless modem is available, thus by-passing  
the internal analogue circuitry. The wireless modems support HR, FR, EFR and AMR  
vocoders.  
2.3.4 Data  
The wireless modem supports the following data protocols:  
GPRS (General Packet Radio Service)  
The wireless modem is a Class B terminal. The wireless modem is GPRS multislot  
class10 enabled, capable of receiving at a maximum of four timeslots per frame  
(down link), and transmitting in two timeslots per frame (up link). See section  
2.3.5 for multi-slot allocation by class.  
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CSD (Circuit Switched Data)  
The GS64 wireless modem is capable of establishing a CSD communication at 9.6  
kbps over the air.  
2.3.5 GPRS Multi-Slot Support  
GSM Multi-slot classes supported by Gx64 devices  
Maximum slot allocation  
Downlink Uplink Active  
Allowable  
Configuration  
Multislot Class  
8
Max data rate  
8-12Kbps Send  
32-48Kbps Receive  
8-12Kbps Send  
32-48Kbps Receive  
16-24Kbps Send  
24-36Kbps Receive  
4
1
5
1 up; 4 down  
1 up; 4 down  
2 up; 3 down  
10  
4
2
5
2.3.6 SIM Card  
The GS64 supports an external SIM card through its system connector. Both 3V and  
1.8V SIM technology is supported. Older, 5V SIM technology is not supported.  
A mechanical variant of the GS64 also supports an on-card SIM. For dual SIM  
support, automated SIM-switching is available. Only one SIM is active at any one  
time, it is not possible to concurrently register on more than one network.  
2.3.7 Power Consumption  
Sleep Mode  
DRX 8  
Transmit  
Operation  
Feature  
Idle Mode  
17 mA  
Voice/CSD  
Data (GPRS)  
Voice/CSD  
GSM850 & E-GSM900  
1.6 mA  
1.6 mA  
2000 mA  
1450 mA  
GSM1800 & GSM1900  
16 mA  
Data (GPRS)  
The power consumption figures shown represent average current for maximum  
transmitted power, single uplink (transmit) slot, single downlink (receive) slot. The  
module will consume more average power in different multi-slot configurations, the  
worst case being that of two uplink and three downlink slots.  
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2.3.8 Other Features  
The GS64 supports many other features, including :  
multiplexing in accordance with 3GPP TS 27.010  
GPS interoperability  
SIM application tool kit, class 2 release 99 compliant  
On board TCP/IP stack  
In addition, customers have the option of a GS64 software variant which adds  
embedded application functionality.  
2.4 Service and Support  
2.4.1 Web Pages  
Visit the Sony Ericsson M2M extranet web site for the following information:  
where to buy wireless modems or for recommendations concerning accessories  
and components  
local contact details for customer support in your region  
FAQs (frequently asked questions)  
documentation related to integrating the module, including application notes,  
design guides and AT command manuals  
Access to the Sony Ericsson extranet site requires a user account and password.  
Accounts can be arranged through your local account manager.  
The extranet web site address is:  
2.4.2AT Commands Manual  
The AT Commands Manual provides users with all the AT commands that can be  
used with the wireless modem. AT commands appear in logical groups and contain  
the command, a description of its functionality and an example of use.  
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2.4.3M2mpower Application Guide  
The M2mpower Application Guide provides users with all the information they need  
to build an application using the M2mpower support environment. This manual is  
supplied as part of the M2mpower package.  
2.4.4 Developer’s Kit  
Sony Ericsson provides the developer’s kit to get you started quickly. The kit  
includes the necessary hardware required to begin the development of an  
application. It includes the following:  
This Integrator’s Manual  
Developer’s kit hardware  
Developer’s kit accessories  
Power supply  
RS232 cable  
Headset  
Antenna  
User need to order the M2M module(s) of their choice, and provide a computer or  
micro-controller. The AT command manual provides the necessary command and  
control reference to drive the module.  
2.5 Precautions  
The wireless modems are ESD protected up to ±2kV on all pins other than the SIM  
interface. The SIM interface is protected up to ±15kV. Integrators must follow  
electronic device handling precautions when working with any electronic device  
system to ensure no damage occurs to the host or the wireless modem. In the  
section ‘Integrating the Wireless modem’, users will find more information about  
safety and product care. Do not exceed the environmental and electrical limits as  
specified in ‘Technical Data’ section.  
2.6 Guidelines for Safe and Efficient Use  
Users must follow the general usage outlined in this chapter before using the GS64  
for any purpose.  
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2.6.1 General Usage  
Always treat the product with care and keep it in a clean and dust-free place  
Do not expose the product to liquid  
Avoid exposing the product to moisture or high humidity environments  
Do not expose the product to extreme high or low temperatures beyond those  
specified for operation and storage  
Do not expose the product to open flames or lit tobacco products  
Do not drop, throw or try to bend the product  
Do not paint the product  
Do not use the product near medical equipment without requesting permission  
Do not use the product when in, or around aircraft, or areas posted “turn off  
two-way radio”  
Do not use the product in an area where a potentially explosive atmosphere  
exists  
Do not place the product or install wireless equipment in the area above a  
vehicle’s air bag  
Do not attempt to disassemble the product; only Sony Ericsson authorized  
personnel should perform servicing  
2.6.2 Radio Frequency (RF) exposure and SAR  
Your wireless modem device is a low-power radio transmitter and receiver  
(transceiver). When it is turned on, it emits low levels of radio frequency energy (also  
known as radio waves or radio frequency fields).  
Governments around the world have adopted comprehensive international safety  
guidelines, developed by scientific organizations, e.g. ICNIRP (International  
Commission on Non-Ionizing Radiation Protection) and IEEE (The Institute of  
Electrical and Electronics Engineers Inc.), through periodic and thorough evaluation  
of scientific studies. These guidelines establish permitted levels of radio wave  
exposure for the general population. The levels include a safety margin designed to  
assure the safety of all persons, regardless of age and health, and to account for any  
variations in measurements.  
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Specific Absorption Rate (SAR) is the unit of measurement for the amount of radio  
frequency energy absorbed by the body when using a transceiver. The SAR value is  
determined at the highest certified power level in laboratory conditions, but the  
actual SAR level of the transceiver while operating can be well below this value. This  
is because the transceiver is designed to use the minimum power required to reach  
the network.  
The GS64 wireless modem device has been approved for applications where the  
antenna is located >20cm from the body. In all other configurations the integrator is  
responsible for meeting the local SAR regulations.  
Integrators of the GS64 wireless modem device are responsible for ensuring that they  
meet the SAR regulatory requirements of the countries in which they intend to  
operate the device, and that their documentation contains the relevant SAR  
declaration, certification information, and user guidance as appropriate.  
More information on radio frequency exposure and SAR can be found at  
2.6.3 Personal Medical Devices  
Wireless modem devices may affect the operation of cardiac pacemakers, hearing  
aids and certain other implanted equipment. If a minimum distance of 15 cm (6  
inches) is maintained between the GS64 module’s radiating antenna and a  
pacemaker, the risk of interference is limited. If the integrator’s application is likely  
to be situated in the vicinity of personnel, a suitable warning should be contained in  
the equipment manual to this effect.  
2.6.4 Disposal of Old Electronic Equipment  
This symbol on the product or on its packaging indicates that this product shall not  
be treated as household waste. Instead it shall be handed over to an appropriate  
collection point for the recycling of electrical and electronic equipment. By ensuring  
this product is disposed of correctly, you will help prevent potential negative  
consequences for the environment and human health, which could otherwise be  
caused by inappropriate waste handling of this product. The recycling of materials  
will help to conserve natural resources. For more detailed information about  
recycling of this product, please contact your local city office, your household waste  
disposal service or the Sony Ericsson regional sales office.  
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3 ABBREVIATIONS  
Abbreviation  
ADC  
AMR  
ATMS  
AFMS  
CBM  
CBS  
Explanation  
Analogue to Digital Converter  
Adaptive Multi Rate  
Audio to Mobile Station  
Audio from Mobile Station  
Cell Broadcast Message  
Cell Broadcast Service  
CSD  
DCE  
DK  
Circuit Switched Data  
Data Circuit Terminating Equipment  
Developer’s Kit  
DTE  
DTMF  
EA  
Data Terminal Equipment  
Dual Tone Multi Frequency  
Embedded Application  
EFR  
Enhanced Full Rate  
EMC  
ETSI  
FR  
Electro-Magnetic Compatibility  
European Telecommunication Standards Institute  
Full Rate  
GPRS  
GPS  
GSM  
HR  
General Packet Radio Service  
Global Positioning System  
Global System for Mobile Communication  
Half Rate  
IDE  
IP  
Integrated Development Environment  
Internet Protocol  
International Telecommunication Union –  
Telecommunications (Standardisation Sector)  
ITU-T  
LDO  
Low Drop Out (voltage regulator)  
Sony Ericsson’s powerful support environment  
Mobile Equipment  
M2mpower  
ME  
MMCX  
MO  
Micro Miniature Coax  
Mobile Originated  
MS  
Mobile Station  
MT  
Mobile Terminated  
PCM  
Pulse Code Modulation  
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Abbreviation  
PDU  
Explanation  
Protocol Data Unit  
RF  
Radio Frequency  
RFU  
RLP  
RTC  
Reserved for Future Use  
Radio Link Protocol  
Real Time Clock  
SDP  
SIM  
Service Discovery Protocol  
Subscriber Identity Module  
Short Message Service  
Transport Control Protocol  
User Datagram Protocol  
SMS  
TCP  
UDP  
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Integrating the Wireless  
Modem  
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4 Mechanical Description  
4.1 Interface Description  
The pictures below show the mechanical design of the wireless modem along with  
the positions of the different connectors and mounting holes. The wireless modem is  
protected with tin coated steel ASI 1008/1010 covers that meet the environmental  
and EMC requirements.  
system connector  
wireless modem  
shielded circuits  
antenna  
connector  
Figure 4.1-1 Wireless modem viewed from below  
integrated SIM holder  
solder tab  
Figure 4.1-2 Wireless modem, viewed from above (Integrated SIM holder version)  
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Please note the following:  
Keypad, display, microphone, speaker and battery are not part of the wireless  
modem  
For the GS64 variant without an integrated SIM holder, the SIM card is mounted  
in the user application, external to the wireless modem (this is also an option for  
the integrated SIM holder variant)  
The GS64 variant without an integrated SIM holder has no components mounted  
on the top-side  
The System Connector is a 100-pin, narrow (0.5 mm) pitch type designed for  
board-to-board mating.  
The pins and their electrical characteristics are  
described in Section 5, together with the System Connector Interface.  
Information about the Antenna Connector is found in Section 6.  
Antenna Connector details are found in Section 6.  
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4.2 Physical Dimensions  
Figure 4.2-1 Dimensions of the Wireless modem (Integrated SIM variant)  
Measurements are given in millimeters. See also Technical Data, in Section 10 .  
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5 System Connector Interface  
5.1 Overview  
Electrical connections to the wireless modem (except the antenna), are made through  
the System Connector Interface. The system connector is a 100-pin, narrow (0.5 mm)  
pitch device designed for board-to-board connectivity.  
Figure 5.1-1 below shows the numbering of the connector pins.  
Pin 100  
Pin 99  
Pin 2  
Pin 1  
Figure 5.1-1 Wireless modem, viewed from underneath  
A mating (host circuit board) connector can be obtained from  
Panasonic by ordering the following part  
100 PIN SOCKET AXK5F00547YG  
TIP  
The following table gives the pin assignments for the system connector interface and  
a short description for each signal.  
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Table 5.1-1 Pin Assignments  
PIN  
Connection  
Pin Name  
Direction Function  
Required  
1
2
3
4
5
6
7
8
9
GND  
VCC  
GND  
VCC  
GND  
VCC  
GND  
VCC  
GND  
-
Input  
-
Input  
-
Input  
-
Input  
-
Input  
-
Input  
Input  
Ground  
DC power  
Ground  
DC power  
Ground  
DC power  
Ground  
DC power  
Ground  
DC power  
Ground  
DC power  
Battery charger power  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
Yes  
10 VCC  
11 GND  
12 VCC  
13 CHG_IN  
14 SIMVCC  
15 SIMRST  
16 SIMCLK  
17 SIMDAT  
18 SIMDET  
19 Reserved  
20 SERVICE  
21 PON_H  
22 Reserved  
23 Reserved  
24 Reserved  
25 Reserved  
26 Reserved  
27 ADIN1  
28 ADIN2  
29 ADIN3  
30 ADIN4  
31 VRTC  
1
Output 1.8V or 3.0V SIM card supply  
Output SIM card reset signal  
Output SIM card clock signal  
In/Out SIM card data  
Yes  
1
Yes  
1
Yes  
1
Yes  
1
Input  
-
SIM presence detection  
-
Yes  
Input  
Input  
-
Flash programming enable signal  
Device on control  
-
2
Yes  
-
-
-
-
-
-
-
-
Input  
Input  
Input  
Input  
Input  
ADC Input 1  
ADC Input 2  
ADC Input 3  
ADC Input 4  
DC supply for real time clock  
32 ALARM  
33 PON_L  
34 VUSB  
35 USBDP  
36 USBDN  
37 LED1  
Output RTC alarm  
2
Input  
Device on/off control  
Yes  
Yes  
Yes  
3
Output USB DC power  
In/Out USB data positive  
In/Out USB data negative  
Output LED control  
3
3
Yes  
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PIN  
Connection  
Pin Name  
Direction Function  
Required  
38 LED2  
Output LED control  
39 TX_ON  
40 GPIO1  
41 GPIO2  
42 Reserved  
43 GPIO3  
44 GPIO4  
45 GPIO5  
46 Reserved  
47 Reserved  
48 GPIO6  
49 GPIO7  
50 GPIO8  
51 GPIO9  
52 BUZZER  
53 RI  
Output Transmit indication  
In/Out General purpose IO  
In/Out General purpose IO  
-
-
In/Out General purpose IO  
In/Out General purpose IO  
In/Out General purpose IO  
-
-
-
-
In/Out General purpose IO  
In/Out General purpose IO  
In/Out General purpose IO  
In/Out General purpose IO  
Output Buzzer Output  
Output Ring Indicator  
54 DCD1  
55 DTR1  
56 DSR1  
57 RTS1  
58 CTS1  
Output Data Carrier Detect (UART1)  
Input  
Output Data Set Ready (UART1)  
Input Ready To Send (UART1)  
Output Clear To Send (UART1)  
Data Terminal Ready (UART1)  
5
Yes  
5
Yes  
4
59 DTM1  
60 DFM1  
61 RTS2  
Input  
Data To Module from host (UART1)  
Yes  
4
Output Data From Module to host (UART1)  
Input  
Yes  
Ready To Send (UART2)  
62 CTS2  
Output Clear To Send (UART2)  
63 DTM2  
64 DFM2  
65 VREF  
66 PCMCLK  
67 PCMFS  
68 PCMDTM  
69 PCMDFM  
70 SSPCLK  
71 SSPFS  
Input  
Data To Module from host (UART2)  
Output Data From Module to host (UART2)  
Output Core voltage reference  
In/Out Serial PCM clock  
In/Out Serial PCM frame synchronization  
Input  
Output Serial PCM data from module to host  
In/Out SPI clock  
In/Out SPI frame synchronization  
Yes  
Serial PCM data to module from host  
72 SSPDTM  
73 SSPDFM  
74 MMCCLK  
75 MMCCMD  
76 MMCDAT0  
Input  
SPI data to module from host  
Output SPI data to host from module  
Output  
In/Out  
SD/MMC card clock  
SD/MMC card command/response  
In/Out SD/MMC card data 0  
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PIN  
Connection  
Pin Name  
Direction Function  
Required  
In/Out SD/MMC card data 1  
In/Out SD/MMC card data 2  
In/Out SD/MMC card data 3  
Output SD/MMC card command enable  
77 MMCDAT1  
78 MMCDAT2  
79 MMCDAT3  
80 MMCMD_EN  
81 MMCDAT_EN  
SD/MMC card data enable (data 1-3)  
Output SD/MMC card data enable (data 0)  
Output  
MMCDAT_EN0  
KEYROW1  
KEYROW2  
KEYROW3  
KEYROW4  
KEYROW5  
82  
83  
84  
85  
86  
87  
Keyboard row 1  
Keyboard row 2  
Keyboard row 3  
Keyboard row 4  
Keyboard row 5  
Input  
Input  
Input  
Input  
Input  
88 KEYCOL1  
89 KEYCOL2  
90 KEYCOL3  
91 KEYCOL4  
92 AUXIP  
93 AUXIN  
94 AUXOP  
95 AUXON  
96 AREF  
Output Keyboard row 1  
Output Keyboard row 2  
Output Keyboard row 3  
Output Keyboard row 4  
Input  
Input  
Aux audio to module from host (pos)  
Aux audio to module from host (neg)  
Output Aux audio from module to host (pos)  
Output Aux audio from module to host (neg)  
-
Analogue reference  
97 MICIP  
98 MICIN  
Input  
Input  
Microphone input positive  
Microphone input negative  
99 EARP  
100 EARN  
Output Earpiece output positive  
Output Earpiece output negative  
1
2
- These signals are required if the external SIM interface is used  
- At least one of these interfaces is required to be connected  
- At least one of these interfaces is required to be connected  
- These pin connections are required for sleep mode operation  
3, 4  
5
NOTE  
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5.2 Dealing with Unused pins  
Integrators applications may connect all of the GS64 signals pins, or just those  
necessary for minimal operation, or most commonly some other permutation. If  
GR64 signal pins are not connected to the host application you should terminate  
them in the following manner.  
Table 5.2-1 Unused Pin Termination  
Pin  
Name  
Unused pins  
1, 3, 5, 7, 9, 11  
2, 4, 6, 8, 10,12  
GND  
VCC  
Must be connected  
Must be connected  
Ground  
Ground  
Ground  
27  
28  
29  
30  
65  
92  
93  
97  
98  
ADIN1  
ADIN2  
ADIN3  
ADIN4  
VREF  
AUXIP  
AUXIN  
MICIP  
MICIN  
Ground  
Must be connected  
Connect to AREF  
Connect to AREF  
Connect to AREF  
Connect to AREF  
All other signal pin may be left open (un-terminated)  
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5.3 General Electrical and Logical Characteristics  
The electrical characteristics in this document refer to the behavior of the device  
under specified conditions. Electrical requirements refer to conditions imposed on  
the user for proper operation of the device.  
All IO to and from the GS64 is 1.8V unless otherwise stated. For user applications  
employing other logic voltage technology it may be necessary to implement level  
translators on the host-side circuitry in order to achieve level compatibility. To  
facilitate ease of level conversion the GS64 provides a 1.8V reference on the VREF  
pin. The VREF voltage from which all 1.8V logic is derived is covered in section 5.6  
All input buffers are of the same type and they offer hysteresis of 200 mV—380 mV  
The electrical characteristics for 1.8V IO signals are shown in Table 5.3-1  
Table 5.3-1 1.8V IO Characteristics  
Parameter  
Min  
Typ  
Max  
Unit  
Input Voltage Low (VIL)  
Input Voltage High (VIH)  
–0.3  
1.16  
0.45  
VREF+0.3  
1.0  
1.0  
0.25 x VREF  
V
V
µA  
µA  
V
V
µA  
V
Input Current (no pull-up) Low (VIL)  
Input Current (no pull-up) High (VIH)  
Output Low Voltage, 2 mA (VOL)  
Output High Voltage, –2 mA (VOH)  
Output 3-State Current Low (IOZL)  
Input Voltage Low (VIL)  
0.75 x VREF  
10  
0.45  
VREF+0.3  
–0.3  
1.16  
Input Voltage Low (VIH)  
V
Table 5.3-2 1.8V IO Absolute Maximum Ratings  
Parameter  
Min  
Typ  
Max  
2.3  
Unit  
Input Withstanding Voltage Low  
Input Withstanding Voltage High  
–0.5  
V
V
Stresses in excess of the voltage withstanding limits can cause  
permanent damage to the device. These are absolute stress ratings only.  
Functional operation of the device is not implied at these or any other  
conditions in excess IO characteristics table. Exposure to absolute  
maximum ratings for extended periods can adversely affect device  
reliability.  
!
WARNING  
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5.4 Grounds  
Pin  
Name  
Direction  
Function  
1
3
5
GND  
GND  
GND  
GND  
GND  
GND  
AREF  
-
-
-
-
-
-
-
Ground  
Ground  
Ground  
Ground  
7
9
11  
96  
Ground  
Ground  
Analogue reference  
There are two ground connections in the wireless modem, AREF (analogue ground)  
and GND (digital ground). Pin assignments are shown in the table above.  
AREF and GND are connected at a single point inside the wireless  
modem, however they must not be joined together in the user  
application.  
NOTE  
5.4.1 Analogue Ground (AREF)  
AREF is the return signal, or analogue audio reference, for AUXI and AUXO. These  
two signals provide a single-ended auxiliary audio input (host to module) and output  
(module to host). AREF is connected to the common GND inside the wireless modem  
only. The application must not connect GND and AREF.  
Parameter  
Limit  
12.5  
Unit  
mA  
Maximum current (IMAX  
)
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5.4.2 Common Ground (GND)  
GND is the reference, or return signal, for all system interface digital signals, radio  
section power, and is also the DC return for the power supply, VCC.  
User application circuitry should connect all GND pins together in order to carry the  
high current drawn by the wireless modem.  
Parameter  
Per Pin  
Total  
Unit  
Maximum current (IMAX  
)
600  
100  
3600  
600  
mA  
mA  
Maximum average current (IAVG  
)
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5.5 Regulated Power Supply Input (VCC)  
Pin  
Name  
Direction  
Function  
2
4
6
VCC  
VCC  
VCC  
VCC  
VCC  
VCC  
Input  
Input  
Input  
Input  
Input  
Input  
DC power  
DC power  
DC power  
DC power  
DC power  
DC power  
8
10  
12  
Power is supplied to the wireless modem VCC pins, from an external source.  
User application circuitry should connect all VCC pins together in to carry the current  
drawn by the wireless modem.  
The electrical characteristics for VCC are shown in the following table.  
Parameter  
Mode  
Limit  
VCC Supply voltage  
Nominal  
Min  
3.6 V  
3.2 V  
Max  
4.5 V  
Absolute maximum limit  
-0.3V to 6.5V  
<100mV @<200kHz  
<20mV @>200kHz  
200mV  
Maximum supply ripple  
Maximum allowable voltage drop Transmission burst  
Maximum current consumed Full power (2W) transmit  
2100 mA peak  
340 mA average  
Stresses in excess of the absolute maximum limits can cause  
permanent damage to the device. These are absolute stress ratings  
only. Functional operation of the device is not implied at these or any  
other conditions in excess of those given in the normal Min & Max  
values stated. Exposure to absolute maximum ratings for extended  
periods can adversely affect device reliability.  
!
WARNING  
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The wireless modem has insufficient internal capacitance to supply the  
large current peaks during GSM burst transmission - use the following  
general guidelines in designing the application power supply.  
Fit a low ESR electrolytic capacitor close to the wireless modem  
(>1,000 µF, with an ESR < 100 m)  
TIP  
Ensure power supply to wireless modem line resistance is < 200 mΩ  
The module has approximately 40µF of internal capacitance across the  
VCC pins. During initial power-up the host power supply will have to  
charge this capacitance to the operating voltage. This initial in-rush  
current may exceed the module’s normal peak current, sometimes  
greater than an order of magnitude higher (depending upon the power  
supply design) for a short duration (generally a few microseconds).  
CAUTION  
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5.6 Voltage Reference (VREF)  
Pin  
65  
Name  
VREF  
Direction  
Input  
Function  
Core voltage reference  
GS64 provides a 1.8V voltage as a reference to the host side device. The VREF  
reference may be used by legacy users, or users of different interface voltage  
technology, to implement level-shifter circuits through which IO signals can be safely  
interconnected.  
VREF output  
Parameter  
Min  
Nom  
1.8  
Max  
Unit  
VREF output voltage  
VREF load current  
1.74  
1.86  
20  
V
mA  
Figure 5.6-1 Typical Level shifter arrangement using VREF  
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5.7 Battery Charging Input (CHG_IN)  
Pin  
11  
Name  
Direction  
Input  
Function  
CHG_IN  
Battery charger power  
For battery powered applications, the GS64 provides a charge input (CHG_IN) pin to  
aid and support battery charging. A typical application would power the wireless  
modem directly from a battery source connected to VCC (pins 2, 4, 6, 8, 10) then  
provide a dc power source to the CHG_IN connection (pin 11). The GS64 can control  
an internal switching FET which creates a charging pathway to the battery. While  
power is provided at CHG_IN, the battery charge can be maintained. If the power  
should fail or be removed at CHG_IN, the application will be supported by the battery  
alone. When CHG_IN voltage returns, the battery charging and maintenance will  
commence once more.  
The GS64 module supports only one mode of charging, microprocessor supervised  
pulsed-charging. Also, the module only supports one battery cell type as standard.  
Users may, if they wish, develop charging algorithms and control through the Sony  
Ericsson M2mpower Embedded Applications. Users wishing to attempt charging of  
battery types not supported by the standard type, indicated in this document, do so  
at their own risk.  
Battery charging algorithms are unique to different battery types. Sony  
Ericsson Mobile Communications will not accept any responsibility or  
liability for damage, product failures, even death or injury occurring as  
DANGER  
a result of incompatible battery and charging algorithms being  
applied.  
Safety considerations must be taken into account when using the battery charge  
function of the GS64; for example, monitoring the temperature of the battery. If the  
temperature of the battery exceeds its specification limits, battery charging must be  
stopped immediately. If the battery temperature continues to rise the application  
should be suspended or the battery disconnected. Battery temperature can be  
monitored with a suitable detection circuit, using the GS64 ADC inputs.  
When charging Lithium batteries, the battery pack must have an  
internal protection circuit in accordance with the manufacturer's  
instructions.  
CAUTION  
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During microprocessor supervised mode, the GS64 takes a current-limited voltage  
source at the CHG_IN pin to implement constant-current charging of a single Li-Ion  
cell connected to the VCC pins.  
CHG_IN  
3.6V  
50mA  
CHARGE FET  
VCC  
C1  
D1  
+
-
MAX CURRENT  
DETECTION  
V
SINGLE  
REF1  
CELL Li-ION  
+
-
VOLTAGE  
SOURCE  
BATTERY  
TIMER  
CHARGER  
V
CONTROL  
REF2  
TO  
uPC  
SUI  
ADC  
ADIN1  
Figure 5.7-1 Typical application for pulse charging a battery  
5.7.1 Charging Process  
Figure 5.7-1 shows a typical battery charging implementation. The voltage source  
must be current limited (500 mA max). A reverse current protection diode prevents  
external fault conditions from draining the battery. A small (typ 10µF) capacitor  
should be placed close to the CHG_IN pin.  
In the application shown, a conditioning phase slowly raises the voltage of a deeply  
discharged cell to a level suitable for fast-charging. After cell conditioning is  
complete, the microprocessor uses the GS64’S ADC converter to monitor the battery  
cell’s status and uses the power management block to control the charge-FET.  
A charge request is initiated when an external voltage source is applied to the  
CHG_IN pin. However, before this request is passed to the microprocessor, CHG_IN is  
verified to be greater than VCC by 150 mV, and at least 3.7 V. If the latter criteria is  
not met, the module limits charging to the conditioning phase. If the former criteria  
is not met, the charge request is ignored and all charging is disabled. If the CHG_IN  
voltage exceeds the upper limit of 6.3 V it will be detected by the module, but  
charging is not inhibited. In this case, however, CHG_IN is outside the normal  
operating range of the device, so the software will not initiate charging if CHG_IN >  
6.3 V is detected.  
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The delta between CHG_IN and VCC is continuously monitored; however, the valid to  
invalid detection has a delay of 46 ms. When CHG_IN exceeds VCC by 150 mV, it is  
considered to be at a valid relative level. It is considered to have an invalid relative  
level if it subsequently falls below VCC by 50 mV. If the relative voltage of CHG_IN  
goes invalid and remains invalid for the duration of the detection delay, charging is  
terminated.  
As a safety precaution, the battery cell voltage must be at least 2.5 V before fast-  
charge is allowed to take place. If the battery cell voltage is less than 2.5 V, it is  
considered either deeply discharged or shorted. To protect a Li-ion cell from the  
damage that may occur if it is fast-charged from this state, a 3.6 V trickle-charge  
source is used to safely condition the battery cell. The conditioning charge current is  
limited to 50 mA, which for most Li-ion cells is 10% or less of the recommended CC  
fast-charge current. In most instances, the battery cell voltage will be greater than  
2.5 V at the time the charge request is initiated, resulting in the conditioning phase  
being skipped.  
There is always a small chance that the charge management block in  
the GS64 power management ASIC will malfunction or fail, which  
could lead to over-charging of the battery.  
It is strongly  
CAUTION  
recommended that any battery chosen for use with your application  
has its own additional integrated over-current and over-voltage  
protection.  
5.7.2 Series Diode  
When charging is disabled, the potential for rapid cell discharge through the body  
diode inherent in the Enhancement-mode charging FET, a Schottky diode must be  
placed in between the external source and the CHG_IN pin. The diode should have a  
forward current and power dissipation rating consistent with its intended use, and a  
maximum forward voltage drop of 0.6V.  
5.7.3 Battery Selection  
Whilst there are several rechargeable battery technologies commercially available,  
including Nickel Cadmium (NiCd), Nickel Metal Hydride (Ni-MH), Lithium-Polymer (Li-  
Polymer) and Lithium-Ion (Li-Ion), the only technology recommended and supported  
for use with the GR64 is Li-Ion. Li-Ion provides a good combination of high energy  
(3.7v) and long cycle life, which lead to low overall energy cost.  
The weight of lithium ion batteries is approximately one half compared with a nickel  
cadmium or nickel metal hydride battery of similar capacity. The volume of lithium  
ion batteries is 40 to 50% smaller than that of nickel cadmium, and 20 to 30% smaller  
than that of a nickel metal hydride.  
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The lithium ion battery is free from the so-called memory effect, a phenomenon  
associated with nickel cadmium in which the apparent battery capacity decreases  
when shallow charge and discharge cycles are repeated.  
A single lithium ion cell has a voltage of 3.7V (mean value), which is equal to either  
three nickel cadmium or nickel-metal hydride cells connected in series. This voltage  
is close to the nominal VCC of the GS64 device.  
Li-Ion batteries generally provide long storage life with few limiting condition, and  
offer problem-free charge after long storage. Under normal conditions, the lithium  
ion battery has a life of more than 500 charge/discharge cycles. Also, Li-Ion  
batteries have a slow self-discharge rate (typically 1.3% per month, compared with  
Ni-MH batteries which can exceed 50% per month).  
Lithium ion batteries are environmentally friendly, inasmuch as they do not contain  
any heavy metal pollution substances such as cadmium, lead, or mercury.  
There are many manufacturers of Li-Ion batteries worldwide. Sony Ericsson make no  
recommendations with regard to specific vendors, but here are some considerations  
for GS64 users which may prove to be useful in the selection process and  
implementation:  
Li-Ion batteries marketed for cellular (mobile) phone use may make a good  
choice  
battery manufacturers with heritage in supplying the cellular (mobile) phone  
industry could make a good choice, especially for high-volume requirements  
look carefully for batteries which are rated at temperatures that the GS64 is  
likely to operate at (many batteries are only specified for -20°C to +65°C  
operation which may not be sufficient)  
small form-factor (typically handset-sized) Li-Ion battery capacity varies  
considerably, some batteries are rated as high as 3200mAh (600mAh to  
1800mAH are more commonly available)  
weight is generally not a problem with typical GS64 user application, even so  
small form-factor Li-Ion batteries (up to 1800mAh) can vary between 10 to  
40 grams  
size is generally a factor of capacity, since larger capacity batteries naturally  
3
3
have more material/cells, and will range between 2750mm to 18000mm for  
small form-factor Li-Ion batteries  
the speed by which lithium-ion ages is governed by temperature and state-  
of-charge; high temperatures and deep discharge will effect useful life  
if possible avoid frequent full discharges because this puts additional strain  
on the battery, partial discharges with frequent recharges are better  
never short circuit the terminals of a Li-Ion battery  
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do not expose Li-Ion batteries to moisture or rain  
monitor battery temperature during charging using a thermistor placed on or  
near the battery wired to an ADC input on the module  
Li-Ion batteries have a higher ESR (compared to Ni-Cd or Ni-MH), although  
this should not be a limiting factor for peak current delivery, any battery  
should be capable of at least 50% greater than the GS64 demands (~3A pk)  
To determine battery life, on a full charge, the following rule of thumb can be  
applied:  
Standby time = Battery Capacity (mAh) / Idle current (mA)  
Call time (voice or data) = Battery Capacity (mAh) / Call current (mA)  
Example 1 – Standby time:  
A 600mAh rated Li-Ion battery, from fully charged (around 4.2V) to the module cut-  
off point (3.2V) will provide around 95% of its total charge capacity. For a standby  
(idle) current of 18mA, the module will typically provide  
600*0.95/18 = 32 hours standby time  
Example 2 – Call time:  
An 1800mAh rated Li-Ion battery fully charged, transmitting maximum power on a  
low-band (850/900MHz) channel may consume an average 320mA, therefore the  
module would typically provide  
1800*0.95/320 = 5 hours 20 mins call time  
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Example 3 – Typical Operation:  
A module performing periodic network data transfers and communicating intervallic  
status information to its host would spend its non-active periods in sleep mode. If  
the module spends 30 mins each day on call (320mA), 30 second each hour  
performing housekeeping, monitoring and status tasks (110mA), and sleeps (2.1mA)  
during the intervening periods, an 1800mAh rated Li-Ion battery fully charged would  
typically provide  
1800*0.95/([0.5hr*320]+[0.2hr*110]+[23.3hr*2.1]) = 7 days 6 hrs operation  
The above examples are given for guidance, the actual battery life will  
depend upon variables such as battery condition, number of previous  
charge/discharge cycles, operating temperature, series resistance  
CAUTION  
between battery and the module, and manufacturing tolerances  
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5.8 Powering the Module ON and OFF (PON_L, PON_H)  
Pin  
Name  
Direction  
Function  
21  
33  
PON_H  
PON_L  
Input  
Input  
Device On/Off control  
Device On/Off control  
The GS64 offers two hardware methods to power up and down the module.  
The PON_L signal utilizes a momentary switching mechanism to alternate between  
power-on and power-off sequences. PON_L is held high to VCC by an internal pull-  
up resistor. The user asserts PON_L by pulling this signal low for a pre-defined  
period to initiate powering-on of the module. The user re-asserts PON_L with a  
subsequent low transition, which is held low for a pre-defined period, to power-off  
the module.  
The PON_H signal is designed to be pulled high and maintained high for the power  
on period. PON_H is held low by an internal pull-down resistor. The user asserts  
PON_H by pulling this signal high to VCC in order to initiate powering-on of the  
module, then maintains it constantly high during normal use. A subsequent de-  
assertion, marked by a transition of PON_H from high to low, and then maintaining  
the signal low, will initiate the power-off process.  
Only one input should be exercised for each Power-on to Power-off event.  
5.8.1 VREF as a Power Indicator  
Presence of the VREF signal can be used as a useful indicator that power-on has been  
successfully initiated. The absence of VREF can be used a successful indicator that  
the power-off sequence is complete.  
The initial presence of VREF indicates that the LDOs are powered, however the  
module will be establishing network connectivity and registration at this point.  
Communications between the host application and the module can commence  
shortly thereafter, however completion of the network registration will be sometime  
afterwards (the period is dependent upon network loading at the time of attempted  
registration).  
Once the power-off sequence has been initiates, shutting-down the LDOs is the last  
action in the process. The absence of VREF is an indication that network de-  
registration and shut-down is complete.  
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5.8.2 Module On & Off Sequence  
Figure 5.8-1 shows typical powering-on and powering-off sequences, using the two  
optional hardware interfaces.  
Figure 5.8-1 Typical Power-On & Power-Off Sequences  
Event Description  
A
B
C
D
E
F
G
H
I
VCC is applied to the module, PON_L is pulled high internally  
PON_L is pulled low by the user application, initiating a power-on sequence  
VREF presence indicates a successful power-on initialization  
PON_L is pulled low by the user application, initiating a power-off sequence  
VREF absence indicates network de-registration and shut-down complete  
VCC can be safely removed  
VCC is applied to the module, PON_H is pulled low internally  
PON_H is pulled high & retained high, initiating a power-on sequence  
VREF presence indicates a successful power-on initialization  
PON_H is released, initiating a power-off sequence  
J
K
L
VREF absence indicates network de-registration and shut-down complete  
VCC can be safely removed  
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5.8.2.1 Power On Timing  
Figure 5.8-2 Power On timing using PON_L as an example  
The GS64 power On sequence is shown above using PON_L as an example. The  
significant signals are VCC, P_ON and VREF, shown by solid lines. The other signals  
(in dashed lines) are internal to the module and are shown for reference purposes  
only.  
Initially, power is supplied to the VCC pins. The presence of power raises the PON_L  
through a pull-up resistor to VCC potential. In order to power the module, PON_L is  
pulled to ground. Once PON_L has been held low for 125ms (denoted by t1) the  
primary LDOs power up, including the VREF output. VREF exceeds it’s reset  
threshold approx 500µs later, then 250ms afterwards (denoted by t2) the RESET line  
goes high. The microprocessor can latch the power-on state by setting the power  
keep (PWR_KEEP) high after the RESET goes high and before the power on (PON_L)  
signal is released.  
It is recommended that P_ON is held low for at least 450ms to guarantee completion  
of the power up sequence.  
The PON_H signal has a similar effect at the point of assertion. The power-on timing  
sequence is the same, provided PON_H remains high. PON_H has to remain high in  
order for the module to function.  
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5.8.3 Turning the Module Off  
Figure 5.8-3 Power Down timing  
The GS64 power down sequence is shown above. The significant signals are VCC,  
PON_L and VREF, shown by solid lines. The other signals (in dashed lines) are  
internal to the module and are shown for reference purposes only.  
With the module powered normally, PON_L is pulled-up to VCC potential. In order to  
power down the module, PON_L is pulled to ground. Once PON_L has been held low  
for at least 125ms the shut-down procedure begins. Although PON_L can be held  
low for longer, it will delay completion of the shut-down event. If the module is  
registered on a GSM network, the de-registration process will complete; this may last  
between 3 to 30 seconds. The power latch (PWR_KEEP) is released and approximately  
70ms later the LDO outputs fall, as indicated by the removal of the VREF output.  
Once VREF is no longer present, the application can safely remove VCC.  
In order to turn the module off using the PON_H signal, the signal is released. The  
power-off timing sequence is the same, provided PON_H remains low.  
The RTC can continue to operate even though VCC is removed,  
provided that a sufficiently charged backup device is connected to the  
VRTC. Refer to section 5.20.1 for details.  
NOTE  
The relevant characteristics of the ON/OFF Power control interface are shown in the  
table below.  
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Parameter  
Conditions  
Min  
Typ  
-25  
Max  
Unit  
Input low=0V, VCC=3.6V  
-60  
0
-12  
1
µA  
µA  
µA  
µA  
PON_L  
PON_H  
Input high =VCC, VCC=3.6V  
Input low=0V, VCC=3.6V  
Input high =VCC, VCC=3.6V  
Input current  
-1  
8
0
60  
20  
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5.9 Analogue Audio  
Pin  
Name  
Direction Function  
92  
93  
94  
95  
96  
97  
98  
99  
AUXIP  
AUXIN  
AUXOP  
AUXON  
AREF  
MICIP  
MICIN  
EARP  
Input  
Input  
Output  
Output  
-
Input  
Input  
Output  
Output  
Differential auxiliary audio to module from host (pos)  
Differential auxiliary audio to module from host (neg)  
Differential auxiliary audio to host from module (pos)  
Differential auxiliary audio to host from module (neg)  
Analogue reference  
Microphone input positive  
Microphone input negative  
Earpiece output positive  
Earpiece output negative  
100 EARN  
The analogue audio signals comprise of two audio inputs to the module, and two  
audio outputs from the module. Both sets of audio interfaces are differential.  
Analogue audio can be used for various configurations, including a car kit mode,  
portable hands free and speakerphone (with an additional output gain stage).  
Five audio profiles are available for GS64 users to configure various modes of  
operation. Each profile is factory set to represent different modes, typical of general  
usage. The customer can modify profiles to optimize acoustic performance to their  
specific application.  
The analogue inputs and outputs share common uplink and downlink chains which  
are multiplexed, and selectively switched by the user through AT-commands.  
There are five factory-set audio profiles as follows:  
portable hands free  
handset  
car kit  
speakerphone  
headset  
Portable hands free is the factory-set default profile. The modification, configuration,  
manipulation and storage of audio profiles is achieved with the AT*E2EAMS (Audio  
Profile Modification) and AT*E2APR (Audio Profile).  
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5.9.1 Auxiliary Audio To Mobile Station (AUXIP, AUXIN)  
AUXI is a differential auxiliary analogue audio input to the wireless modem.  
Internally, the signal is routed to the CODEC (COder/DECoder), where it is converted  
to digital audio and mapped to an internal bus.  
All sources must be AC-coupled to avoid attenuation of low frequencies. Use a  
capacitor greater than the value shown in the table below.  
The AUXI input is a passive network followed by the transmit part of the CODEC.  
Parameter  
Conditions  
Min  
Typ  
Max  
Unit  
max input gain  
min input gain  
-3dB cut-off  
142  
447  
300  
2.16  
1
158  
501  
178  
564  
3400  
2.64  
mVrms  
mVrms  
Hz  
Input voltage full scale  
Frequency response  
Output dc bias level  
AC coupling capacitance  
2.4  
V
µF  
5.9.2 Auxiliary Audio From Mobile Station (AUXOP, AUXON)  
The auxiliary output is a differential analogue audio output from the wireless modem  
and may be used to drive a speaker or an earpiece. The interface has an internal  
100nF coupling capacitor; a load of 10kohm will provide a near full-scale output  
capability between 300 to 4300 Hz.  
The table below shows the audio signal levels for AUXO.  
Parameter  
Output voltage full scale RL =10kΩ  
Frequency response -3dB cut-off (RL =10k)  
Conditions  
Min  
Typ  
750  
Max  
840  
Unit  
670  
225  
mVrms  
Hz  
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5.9.3 Microphone Signals (MICIP, MICIN)  
MICP and MICN are balanced differential microphone input pins. These inputs are  
compatible with an electret microphone. The microphone contains a FET buffer with  
an open drain output, which is supplied with at 2.4V ±10% relative to ground by the  
wireless modem as shown below.  
Figure 5.9-1 Microphone connections to the wireless modem  
The input low-noise amplifier stage is constructed out of standard low-noise op  
amps. External resistors set the gain of this stage.  
The input gain is scaled by the input resistors to be around 18, which provides  
optimal performance for many standard types of electret microphones. The module  
provides a microphone bias at 2.4V, and can supply at least 1mA of current.  
Parameter  
Conditions  
Min  
Typ  
Max  
Unit  
max input gain  
min input gain  
-3dB cut-off  
14  
45  
300  
2.16  
16  
50  
18  
56  
3400  
2.64  
mVrms  
mVrms  
Hz  
Input voltage full scale  
Frequency response  
Output dc bias level  
2.4  
V
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5.9.4 Speaker Signals (EARP, EARN)  
EARP and EARN are the speaker output signals. These are differential-mode outputs.  
With a full-scale PCM input to the CODEC, 0 dB audio output gain setting, and a  
differential load RL = 30, the output voltage between EARP and EARN is 1.5 V rms.  
For load resistances less than 30, the full-scale output needs is limited using the  
modules internal programmable gain attenuator.  
The electrical characteristics are given in the table below.  
Parameter  
Conditions  
Min  
Typ  
1.5  
Max  
1.68  
Unit  
RL = 30Ω  
RL = 16 Ω  
RL = 8  
1.34  
1.41  
1.24  
Vrms  
Vrms  
Vrms  
Input voltage full scale  
Frequency response  
-3dB cut-off  
300  
3400  
Hz  
5.10 PCM Digital Audio (SSP)  
Pin  
Name  
Direction  
Function  
Serial PCM clock  
Serial PCM frame synchronization  
Serial PCM data to module from host  
Serial PCM data from module to host  
66  
67  
68  
69  
PCMCLK  
PCMFS  
PCMDTM  
PCMDFM  
In/Out  
In/Out  
Input  
Output  
The SSP (Synchronous Serial Port) digital interface is configured to provide a PCM  
(digital) audio interface. This interface can be used to process PCM digital audio  
signals as an alternative to routing signals to the CODECs through the analogue  
uplink and downlink chains.  
5.10.1 PCM Data Format  
The PCM digital audio interface for GS64 is based upon the Texas Instruments SSI  
standard. The SSP is a versatile interface which can be programmed for different  
clock rates and data frame sizes between 4 to 16 bits.  
PCMCLK (bit clock) and PCMSYNC (frame synchronization) are both generated by the  
DSP within the wireless modem. The DSP within the wireless modem in this instance  
is the master for all external PCM, so clocks and data from external devices must be  
synchronized to it.  
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For standard GSM voice a 13-Bit PCM data word is embedded in a 16-bit word frame,  
as shown in Figure 5.10-1 below.  
sample LSB justified  
MSB  
D15  
LSB  
D0  
13-bit sample occupies these frame bits  
Figure 5.10-1 Typical 16-bit PCM Voice Sample Word Format  
Typical PCM data transfer is shown in the following figures.  
SSPCLK  
SSPFS  
SSPDTM  
Q
LSB  
MSB  
MSB  
SSPDFM  
Q
LSB  
Figure 5.10-2 PCM Frame format for a single transfer  
SSPCLK  
SSPFS  
LSB  
LSB  
LSB  
LSB  
MSB  
MSB  
MSB  
MSB  
SSPDTM  
SSPDFM  
Frame n-1  
Frame n  
Frame n+1  
Figure 5.10-3 PCM Frame format for a continuous transfer  
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5.11 Serial Data Interfaces  
The serial channels consist of two UARTs and a USB port.  
communication links to the application or accessory units.  
These provide  
The serial channels can be used in differing configurations, depending upon the  
users requirements and application. In practice, both UARTs can be configured as  
either the control interface or the logging interface. Similarly, control and logging  
can be carried out simultaneously on the USB interface. However, the common  
(default) configuration options are described:  
UART1 has full RS-232 functionality and is used for all on- and off –line  
communication (modem sleep & wake functional control is an integral  
component of this interface). Its intended use is that of the primary command  
(AT) interface.  
UART2 behaves as a general-purpose serial data link. It can be used for data  
logging and de-bugging purposes. It can also be used as a data interface to  
peripheral devices, such as a GPS receiver.  
The USB port provides a convenient general purpose peripheral (slave) port for  
use with host devices which have USB controllers.  
5.11.1 UART1  
Pin  
Name  
Direction  
Function  
53  
54  
55  
57  
58  
59  
60  
56  
RI  
Output  
Output  
Input  
Input  
Output  
Input  
Ring Indicator  
DCD1  
DTR1  
RTS1  
CTS1  
DTM1  
DFM1  
DSR1  
Data Carrier Detect (UART1)  
Data Terminal Ready (UART1)  
Ready To Send (UART1)  
Clear To Send (UART1)  
Data To Module from host (UART1)  
Data From Module to host (UART1)  
Data Set Ready (UART1)  
Output  
Output  
UART1 is a full featured Universal Asynchronous Receiver Transmitter providing full-  
duplex asynchronous communication.  
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UART1 has the following features :  
32 bytes of FIFO for both receive and transmit  
FIFO threshold interrupts  
1 start bit, 7 or 8 data bits, 1 optional parity bit, 1 or 2 stop bits  
Programmable baud rate  
Auto-configuration mode with auto-baud and auto-format operation  
Hardware flow control  
Software flow control.  
UART1 signals replicate a 9-pin RS232 (V.24) serial port. However, UART1 signal  
levels are not compliant with the RS232 (V.28) standard. Conversion between the  
wireless modem CMOS levels and RS232 levels can be achieved using a standard  
interface IC, such as the Maxim Integrated Products MAX3237. The relationship  
between the levels is shown in the table below.  
DTM, DFM  
RI,RTS,CTS,DSR,DTM,DCD  
RS232 level  
GS64 level  
1
0
OFF  
ON  
<-3V  
>+3V  
VREF-0.4V  
0.4V  
5.11.2 Serial Data Signals (DTM1, DFM1)  
The default baud rate of the UARTs is auto-baud. Baud rates of between 600 bauds  
to 460 kbauds are possible. The wireless modem also supports 3GPP TS27.010  
multiplexing protocol, which starts when the appropriate command is sent.  
5.11.2.1  
Serial Data From Wireless modem (DFM1)  
DFM1 is an output signal that the wireless modem uses to send data via UART1 to  
the host application.  
5.11.2.2  
Serial Data To Wireless modem (DTM1)  
DTM1 is an input signal, used by the application to send data via UART1 to the  
wireless modem.  
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5.11.3 Control Signals (RTS1, CTS1, DTR1, DSR1, DCD1, RI)  
Depending upon the user application, some, all, or none of the control signals may  
be needed. Each of the control signals can alternatively be configured as a general  
purpose IO. When hardware flow control is not used in communications between the  
application and the wireless modem, some applications may require RTS and CTS to  
be connected to each other at the wireless modem. Users should familiarize  
themselves with the specific implementation of their UART.  
UART1 converted signals, together with GND, DTM1 and DFM1 form a 9-pin RS232  
data port.  
5.11.3.1  
Hardware flow control RTS1 and CTS1  
RTS and CTS provide a hardware flow control mechanism.  
5.11.3.2  
Request to Send (RTS1)  
RTS is used to condition the DCE for data transmission. The default level is high by  
internal pull up. The application must pull RTS low to enable data transmission from  
the wireless modem. Similarly, the wireless modem asserts CTS low, indicating it is  
ready to receive data transmission from the host.  
5.11.3.3  
Clear To Send (CTS1)  
CTS is asserted by the DCE to indicate that the host (DTE) may transmit data. When  
CTS is high, the host (DTE) is not permitted to transmit data. The table below shows  
the load characteristics for this signal.  
5.11.3.4  
Data Terminal Ready (DTR1)  
DTR indicates that the DTE is ready to receive data. It also acts as a hardware ‘hang-  
up’, terminating calls when switched high. The signal is active low. Users can define  
the exact behavior of DTR with an the AT&D command.  
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5.11.3.5  
Data Set Ready (DSR1)  
DSR indicates that the DCE is ready to receive data. The signal is active low.  
Behavior is controlled using the AT&S command.  
5.11.3.6  
Data Carrier Detect (DCD1)  
DCD indicates that the DCE is receiving a valid carrier (data signal) when low.  
Behavior is controlled using the AT&C command.  
5.11.3.7  
Ring Indicator (RI)  
RI indicates that a ringing signal is being received by the DCE when toggled low.  
Users can define the exact behavior of RI with an AT command, including the option  
of asserting the RI signal to flag an incoming SMS by using the AT*E2SMSRI  
command.  
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5.11.4 UART2 (DTM2, DFM2)  
Pin  
Name  
Direction  
Function  
61  
62  
63  
64  
RTS2  
CTS2  
DTM2  
DFM2  
Input  
Output  
Input  
Request To Send (UART2)  
Clear To Send (UART2)  
Data To Module from host (UART2)  
Data From Module to host (UART2)  
Output  
UART 2 consists of a full duplex serial communication port with transmission,  
reception lines and hardware flow control.  
Timing and electrical signals characteristics are the same as for UART1, DTM1 and  
DFM1, including the baud rate range and the capability to auto-baud.  
5.11.4.1  
Transmitted Data (DTM2)  
DTM2 is used by the application to send data to the wireless modem via UART2. It  
has the same electrical characteristics the equivalent signal in UART1.  
5.11.4.2  
Received Data (DFM2)  
DFM2 is used to send data to the application via UART2. It has the same electrical  
characteristics as the equivalent signal in UART1.  
5.11.4.3  
Request to Send (RTS2)  
RTS is used to condition the DCE for data transmission. It has the same electrical  
characteristics as the equivalent signal in UART1.  
5.11.4.4  
Clear To Send (CTS2)  
CTS is asserted by the DCE to indicate that the host (DTE) may transmit data. It has  
the same electrical characteristics as the equivalent signal in UART1.  
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5.11.5 USB  
Pin  
Name  
Direction  
Function  
35  
36  
34  
USBDP  
USBDN  
VUSB  
In/Out  
In/Out  
Input  
USB data positive  
USB data negative  
USB DC power  
The USB interface is compliant with the USB2.0 standard for a full speed (12Mbps)  
endpoint device. Together with VUSB (the USB transceiver DC power) and GND it  
creates a standard USB 4-pin interface. VUSB (VBUS in the USB standard) is nominally  
5.0V.  
The USB interface has the following features  
Full-speed (12 Mbits/s) device operation  
16 unidirectional endpoints  
Each endpoint capable of supporting control, interrupt, isochronous and bulk  
transfer  
Programmable endpoint types and FIFO sizes and internal 1120-byte logical  
(2240-byte physical for dual-packet mode) shared FIFO storage allow a wide  
variety of configurations.  
Dual-packet mode of FIFOs reduces latency  
USB reset can be programmed to clear device address.  
Firmware ability to wake up and reset a suspended device  
8, 16, 32, and 64-byte FIFO sizes for non-isochronous transfers  
64, 256, 512, and 1024-byte FIFO sizes for isochronous transfers  
Firmware downloading  
Trace debug port for module diagnostics  
The USB interface supports 3GPP TS 27.010 multiplexing, and may be used as the  
primary AT-command interface.  
Internally, the USBDP line is pulled up by a 1.5K resistor, in accordance with the USB  
standard, to indicate that it’s a full-speed capable device to the USB controller.  
To implement successful applications using the GS64 USB interface, users should  
familiarize themselves with the USB specification.  
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5.11.6 SIM Card Interface  
Pin  
Name  
SIMVCC  
SIMRST  
SIMCLK  
SIMDAT  
SIMDET  
Direction  
Function  
14  
15  
16  
17  
18  
Output  
Output  
Output  
In/Out  
Input  
1.8V or 3.0V SIM card supply  
SIM card reset signal  
SIM card clock signal  
SIM card data  
SIM presence detection  
This interface allows the user to communicate with the smart (SIM) card in the user  
application. The GS64 offers alternative arrangements for accessing the SIM  
depending on which variant of the GS64 is used. Both variants provide this interface  
through the system connector, referred to as the external or remote SIM interface to  
distinguish it from the integrated SIM interface.  
The maximum distance between the SIM card holder and the wireless modem is  
70cm. SIM holders placed further than this distance may not meet the SIM interface  
performance specification.  
This SIM interface allows the use of 3 V and 1.8 V SIM cards. The module does not  
support 5V SIM cards. The wireless modem automatically detects the SIM type,  
switching the signal voltages accordingly. SIM voltage levels, as shown in the  
following table, are dependent on the type of SIM card detected by the wireless  
modem.  
Min  
Typ  
Max  
Unit  
Signal Parameter  
SIM supply voltage  
Mode  
1.8V  
3.0V  
1.71  
2.75  
10  
1.8  
2.9  
1.89  
3.05  
50  
V
V
Short circuit current  
Quiescent Supply Current  
Output Capacitance  
Output Capacitor ESR  
mA  
µA  
µF  
V
V
V
V
V
SIMVCC  
SIMDAT  
3.0V  
20  
0.3  
0.01  
2
1.0  
0.7xSIMVCC  
0.7xSIMVCC  
1.8V  
3.0V  
High level input voltage (VIH)  
Low level input voltage (VIL)  
High level output voltage (VOH)  
Low level output voltage (VOL)  
1.8V 0.2xSIMVCC  
3.0V 0.4  
1.8V 0.8xSIMVCC  
3.0V 0.8xSIMVCC  
1.8V  
V
V
V
0.4  
0.4  
3.0V  
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Signal  
Parameter  
Mode  
Min  
Typ  
Max  
Unit  
1.8V 0.9xSIMVCC  
3.0V 0.9xSIMVCC  
1.8V  
V
V
V
V
High level output voltage (VOH)  
SIMCLK  
SIMRST  
0.4  
0.4  
Low level output voltage (VOL)  
3.0V  
5.11.7 SIM Detection (SIMDET)  
SIMDET is used to determine whether a SIM card has been inserted into or removed  
from the SIM card holder. You should normally wire it to the ‘card inserted switch’ of  
the SIM card holder, but different implementations are possible.  
When left open, an internal pull-up resistor maintains the signal high and means ‘SIM  
card missing’ to the wireless modem. When pulled low the radio device assumes a  
SIM card is inserted. SIMDET is a Digital IO signal.  
In order to meet regulatory approval requirements, the SIMDET  
function must be implemented in the host application.  
NOTE  
5.12 Synchronous Serial Port (SSP) Interface [to be implemented in a future release]  
Pin  
Name  
Direction  
Function  
70  
71  
72  
73  
SSPCLK  
SSPFS  
SSPDTM  
SSPDFM  
In/Out  
In/Out  
Input  
SPI clock  
SPI frame synchronization  
SPI data to module from host  
SPI data to host from module  
Output  
The SSP interface provides a synchronous serial peripheral interface based on the  
Motorola SPI protocol.  
The SSPI interface operates in a single master mode only, with the module acting as  
master. Four clock rates are supported through programming; 1.5MHz, 800kHz,  
400kHz, 200kHz. The interface supports a variable word size, between 4bits to 16  
bits. Continuous Transfer modes are not supported.  
The SSP supports programmable data sizes of 4 bits to 16 bits, in addition to which  
the polarity of the clock signal to the SPCLK pin is programmable through a register.  
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5.13 Memory Card Interface (SD/MMC) [to be implemented in a future release]  
Pin  
Name  
MMCCLK  
MMCCMD  
MMCDAT0  
MMCDAT1  
MMCDAT2  
MMCDAT3  
MMCMD_EN  
MMCDAT_EN  
MMCDAT_EN0  
Direction  
Function  
74  
75  
76  
77  
78  
79  
80  
81  
82  
Output  
In/Out  
In/Out  
In/Out  
In/Out  
In/Out  
Output  
Output  
Output  
SD/MMC card clock  
SD/MMC card command/response  
SD/MMC card data 0  
SD/MMC card data 1  
SD/MMC card data 2  
SD/MMC card data 3  
SD/MMC card command enable  
SD/MMC card data enable (data 1-3)  
SD/MMC card data enable (data 0)  
SD/MMC interface module acts as either a multimedia card bus host or a secure  
digital memory card bus host. The interface conforms to the following standards:  
Multimedia Card Specification v2.11  
Secure Digital Memory Card Physical Layer Specification v0.96  
The SD/MMC interface provides around 800kbps net throughput.  
The SD/MMC interface, like all IO in the module, is 1.8V. In order to interface to  
some SD/MMC devices based on 3V technology it is necessary to level shift these  
signals for compatibility purposes. The MMC MD & DAT enable signals (pins 80, 81,  
82) are provided to configure level shifters for directivity, which may be used with the  
Agere PSC2217 level shifter for example. There are other means of level shifting  
using bi-directional level shifters which do not require direction pins, such as:  
Philips GTL2002, 2-bit bidirectional low voltage translators  
Maxim MAX3001E, 8-channel bidirectional level translators  
5.13.1 Multimedia Card System  
The multimedia card system transfers commands and data using three signal lines  
on a single physical bus:  
MMCCLK: One bit is transferred on both command and data lines with each clock  
cycle. The clock frequency varies between 0 MHz and 20 MHz for a multimedia  
card.  
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MMCCMD: Bidirectional command channel that initializes a card and transfers  
commands. CMD has two operational modes; open-drain for initialization and  
push-pull for command transfer. This depends on speed requirements for the  
command channel during the initialization phase; external open-drain pull-up  
resistor may be needed if the 200 kinternal pull-up resistor is too large.  
MMCDAT: Bidirectional data channel, operating in push-pull mode.  
5.13.2 Secure Digital Memory Card System  
The secure digital memory card system consists of the host and cards connected in a  
star topology. Multimedia cards and secure digital memory cards can be used in the  
same system. The power supply can be provided by the host or level-shifter devices  
such as Agere’s PSC2217.  
The following signals are used on the secure digital memory card bus:  
MMCCLK: Host to card clock signal.  
MMCCMD: Bidirectional command/response signal (one per card if multiple cards  
are connected to the bus, in which case, bus multiplexing logic is required).  
MMCDAT[3:0]: Bidirectional data signals (one set per card).  
VDD, VSS: Power and ground signals provided by the host or level translator  
product.  
The MCI (Multimedia Card Interface) does not contain bus multiplexing logic. If more  
than one secure digital memory cards needs to be supported, the user must  
implement bus multiplexing logic with external components.  
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5.14 Service/Programming  
Pin  
20  
Name  
SERVICE  
Direction  
Input  
Function  
Flash programming enable signal  
The SERVICE interface is a standard IO, configured internally as an Input. This input  
is activated in order to enable flash memory programming. The SERVICE interface is  
normally pulled HIGH and is made active by the host application pulling it LOW.  
There are two methods for updating the firmware in the GR64: Sony  
Ericsson Emma III and Updater. The Emma III system is a web based  
tool that accesses a Sony Ericsson server from which signed software  
NOTE  
can be downloaded. The Updater is a local application that downloads  
a signed image provided by SEMC.  
5.15 LED [to be implemented in a future release]  
Pin  
Name  
Direction  
Function  
37  
38  
LED1  
LED2  
Output  
Output  
LED control signal  
LED control signal  
The LED driver interface is able to operate single LEDs or a series of LEDs (such as  
LED backlighting). The LED interfaces are driven by programmable current sources,  
designed to control the brightness of the LEDs connected to them (typical of  
keyboard or LCD illumination).  
LED1 can be programmed to sink up to 75mA or 150mA in nonlinear steps over two  
ranges of output. LED2 can be programmed to sink from up to 50mA or 100mA in  
nonlinear step over two ranges of outputs. Both LED drivers are capable of sinking  
their maximum output current at a worst-case maximum output voltage of 0.4 V. For  
efficient use, the LEDs should be forward connected between the main battery and  
their corresponding LED driver output.  
The LED drivers require no supporting components, eliminating the need for current-  
limiting resistors. The LED outputs should be programmed to values consistent with  
their rated values. If desired, both LED outputs can be ganged together to provide a  
maximum single LED driver sink capability of 250mA.  
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Figure 5.15-1 Typical circuit for LEDs  
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5.16 General Purpose IO  
All general purpose IO (GPIO) is programmable by the user. Some GPIO signals are  
dedicated, other GPIO can be configured as an alternative to other signal  
functionality if it is not required by the user. GPIO which has alternate functionality  
is effectively multiplexed, so that the user chooses through AT commands the  
appropriate configuration for their application.  
Dedicated IO  
Pin  
Name  
Default  
Alternate Function  
40  
41  
43  
44  
45  
48  
49  
50  
51  
GPIO1  
GPIO2  
GPIO3  
GPIO4  
GPIO5  
GPIO6  
GPIO7  
GPIO8  
GPIO9  
GPIO1  
GPIO2  
GPIO3  
GPIO4  
GPIO5  
GPIO6  
GPIO7  
GPIO8  
GPIO9  
None  
None  
None  
None  
None  
None  
None  
None  
None  
Configurable IO  
Pin  
Name  
Default  
Alternate function  
74  
75  
76  
77  
78  
79  
80  
81  
82  
83  
84  
85  
86  
87  
88  
89  
90  
91  
GPIO10  
GPIO11  
GPIO12  
GPIO13  
GPIO14  
GPIO15  
GPIO16  
GPIO17  
GPIO18  
GPIO19  
GPIO20  
GPIO21  
GPIO22  
GPIO23  
GPIO24  
GPIO25  
GPIO26  
GPIO27  
MMCCLK  
SD/MMC card clock  
SD/MMC card command  
SD/MMC card data  
SD/MMC card data  
SD/MMC card data  
SD/MMC card data  
SD/MMC card command enable  
SD/MMC card data enable (1-3)  
SD/MMC card data enable (0)  
Keyboard row 1  
Keyboard row 2  
Keyboard row 3  
Keyboard row 4  
Keyboard row 5  
Keyboard row 1  
Keyboard row 2  
Keyboard row 3  
Keyboard row 4  
MMCCMD  
MMCDAT0  
MMCDAT1  
MMCDAT2  
MMCDAT3  
MMCMD_EN  
MMCDAT_EN  
MMCDAT_EN0  
KEYROW1  
KEYROW2  
KEYROW3  
KEYROW4  
KEYROW5  
KEYCOL1  
KEYCOL2  
KEYCOL3  
KEYCOL4  
Regular (dedicated) IO and alternate function IO have exactly the same characteristics  
and can be programmed in the same way. The use of alternate function IO is subject  
to some degree of limitation:  
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Signals which are assigned SD/MMC functionality are controlled by a single  
register bit so that all nine signals are allocated to either memory card or GPIO; it  
not possible individually allocate function.  
Signals which are assigned keyboard functionality can be re-allocated GPIO  
functionality on a pin-by-pin basis, providing anything from 1 to 9 additional  
GPIO.  
Signals defined as keyboard functions are programmed to generate interrupts,  
however the same pins programmed as GPIO do not have interrupt capability  
associated with them.  
GPIO is programmable for the following features  
either an input or output  
level-sensitive or transition-sensitive  
open drain or direct drive  
polarity (inversion)  
internal pull-up resistors  
Signal labeled in the Configurable IO table which are not being used for the indicated  
alternative function be used as general purpose inputs or outputs; they are not  
constrained to work in only one direction.  
GPIO has a number of sharing (configuration) options. Sharing means that it is not  
feasible to operate all the alternative features concurrently, however, with care,  
dynamic switching from one feature to another is possible.  
5.16.1Embedded Applications  
When a particular IO feature is required, the user sets the state of the relevant IO  
blocks by disabling one set before enabling others.  
The wireless modem checks the state of the IO when the user requests a new  
function. The new function is rejected if the current function is not released first.  
The states of GPIOn to GPIOm are retained for the next power up. For example,  
inputs remain as inputs and outputs remain as outputs. The voltage of a defined  
output pin will still drop to 0 Volts in the wireless modem power down state.  
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5.17 Keyboard Signals (KEYROW, KEYCOL)  
Pin  
Name  
Direction  
Default Function  
83  
84  
85  
86  
87  
88  
89  
90  
91  
Keyboard row 1  
Keyboard row 2  
Keyboard row 3  
Keyboard row 4  
Keyboard row 5  
Keyboard row 1  
Keyboard row 2  
Keyboard row 3  
Keyboard row 4  
KEYROW1  
KEYROW2  
KEYROW3  
KEYROW4  
KEYROW5  
KEYCOL1  
KEYCOL2  
KEYCOL3  
KEYCOL4  
Input  
Input  
Input  
Input  
Input  
Output  
Output  
Output  
Output  
The keyboard interface consists of 9 programmable IO pins that are configured for  
use in scanning a keyboard/keypad. The maximum sized keyboard matrix  
achievable is 5 x 4. Keyboard inputs must be active for a selectable minimum pulse-  
width before interrupt generation occurs in the key-press detection process.  
Pins that are not needed for the keyboard can be used as programmable IO, as  
described in section 0.  
The default keyboard configuration is shown in the Default Function column of the  
table above. Users wishing to configure the keyboard interface differently or as GPIO  
should obtain a separate Application Note describing keyboard and GPIO  
programming from Sony Ericsson through Customer Support.  
5.18 Analogue to Digital Converters (ADIN1, ADIN2, ADIN3, ADIN4)  
Pin  
Name  
Direction  
Function  
27  
28  
29  
30  
ADIN1  
ADIN2  
ADIN3  
ADIN4  
Input  
Input  
Input  
Input  
ADC Input 1  
ADC Input 2  
ADC Input 3  
ADC Input 4  
The module has a single precision 10-bit ADC, shared by a number of functions  
within the module and also through the external interface connections. The ADC  
sharing arrangement is shown below.  
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Figure 5.18-1 ADC sharing arrangement  
ADC sampling frequency and sampling source selection can be set up and controlled  
with AT-commands by the user. ADC samples requires up to 5 clock (ADCLK) cycles  
to process. The ADC also performs some system-level sampling. These two factors  
limit the maximum practical sampling rate to around 12ksps.  
Table 5.18-1 ADC Interface Characteristics  
Min  
Typ  
10  
Max  
Unit  
Parameter  
Condition  
Resolution  
bit  
Hex  
lsb  
lsb  
%
Coding: Unsigned Magnitude  
Differential Nonlinearity  
Integral Nonlinearity  
Full-scale Error  
000  
–1  
–10  
–3  
3FF  
1
10  
3
Offset Error  
–14  
14  
lsb  
Conversion Gain*  
421  
–9  
lsb/V  
lsb  
Conversion Intercept*  
Low-level Input Voltage  
High-level Input Voltage  
ADC Clock (ADCLK)  
ADC Conversion Time  
ADC Sample Delay  
ADC output=000h  
ADC output=3FFh  
2.45  
260  
2.59  
390  
V
kHz  
ADCLK  
ADCLK  
325  
12  
5
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5.19 Burst Transmission (TX_ON)  
Pin  
39  
Name  
Direction  
Output  
Function  
TX_ON  
Transmit indication  
Burst transmission is the period during which the GSM transceiver is transmitting RF  
signals. TX_ON is an indicator that the module is transmitting.  
A typical application may use TX_ON to blank adjacent receiver circuitry as a means  
of protecting sensitive input stages.  
5.20 Real Time Clock  
The real-time clock (RTC) is driven by a 32.768 kHz clock from an internal crystal  
oscillator. The clock is divided by 32,768 to generate a clock with a 1 second period  
that increments a 29-bit seconds counter. In addition, it can generate interrupts at a  
programmed time. The following are the features of RTC:  
17-year time interval with 1 second resolution.  
Programmed time alarm interrupt  
Alarm output pin  
An RTC alarm can be set by using the AT-command AT+CALA.  
The RTC relies on an uninterrupted 1.5 V (nominal) power supply (VRTC), whether the  
module is powered off or on. The RTC alarm operates from the VRTC supply, and  
therefore utilize 1.5 V logic.  
Users have the responsibility to provide a backup  
battery to provide uninterrupted VRTC function when the module is powered down.  
RTC Accuracy  
Condition  
Max  
Unit  
Parameter  
RTC accuracy  
RTC accuracy  
Ambient (+25±2°C) operation  
Extreme temperatures  
Secs/month  
Secs/month  
52.6  
65.2  
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5.20.1Real Time Clock Backup Supply (VRTC)  
Pin  
31  
Name  
VRTC  
Direction  
Input  
Function  
DC supply for real time clock  
VRTC provides an input connection to the module which allows the user to power the  
real time clock (RTC) within the GS64 by way of a coin cell or charged capacitor.  
When the module is powered, an internal LDO regulator provides a 200µA source  
designed to supply the microprocessor’s RTC block. It is also intended to recondition  
a rechargeable coin cell that supplies the RTC module when the main battery is  
removed, or has insufficient energy. Because this LDO is always on, even when the  
module is powered down, it features very low quiescent current. It also offers  
reverse current protection, with low leakage, when the coin cell is powering the RTC  
block.  
The RTC LDO is primarily designed to charge manganese-silicon lithium batteries.  
Rechargeable coin cells with different chemical composition may also be charged,  
provided their charging requirements are consistent with the RTC LDO’s electrical  
characteristics. The VRTC output is nominally 1.5 V.  
VRTC LDO characteristics  
Min  
Typ  
1.5  
Max  
Unit  
Parameter  
Condition  
Output Voltage Tolerance  
Maximum Output Current  
Short-circuit Current Limit  
Output Resistance  
Line Regulation  
Off Reverse Leakage Current  
IOUT = 10 µA  
1.45  
200  
0.7  
1.55  
V
µA  
mA  
mV  
µA  
VRTC to GND  
IOUT = 10 µA  
IOUT = 10 µA  
1.6  
100  
2.9  
150  
5
75  
0.1  
1
In the backup condition the RTC block will function to as low as 1.1V on the VRTC  
pin. The RTC draws 10µA typically during powered backup (15µA max).  
Figure 5.20-1 shows the VRTC connectivity arrangement.  
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Figure 5.20-1 VRTC connection  
5.20.2 RTC Alarm (ALARM)  
Pin  
32  
Name  
Direction  
Output  
Function  
ALARM  
RTC Alarm  
The Alarm output is logic output from the module which is supplied from the RTC  
circuitry block. This block is in turn supplied either from the main supply of the  
module or from a backup battery if the main supply is not available.  
5.20.2.1  
ALARM Output from the Module  
The ALARM time is set by the use of an AT-command. The output is normally at  
VRTC level and will go low for one second when the ALARM becomes active.  
Since the VRTC interface is operable down to 1.1V, transistor circuitry must be used  
on the host side. It is recommended that integrators use an FET to minimize current  
consumption. If a suitable FET, operating at the low voltage necessary, cannot be  
found then bi-polar must be used. The resistors shall be kept as high impedance as  
possible to minimize current consumption.  
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Figure 5.20-2 Typical host-side circuit for ALARM output  
VRTC is specified to work down to 1.1V across the environmental operating  
conditions of the GS64. Integrators may discover in controlled environments that the  
VRTC interface will function reliably as low as 0.8V, so best practice would be to  
design the circuitry to operate down to 0.7V.  
5.20.3 ALARM Utilization as a Wake-up  
The ALARM output can be used by the host application to wake up from standby or  
hibernation mode, but it can also be used to completely power up the host  
application. The example below shows how the ALARM output (marked Out on  
Figure 5.20-2, and In on Figure 5.20-3) triggers the enabling of the main power to  
the application. The application has a parallel hold transistor (V4), and a Start  
Button.  
Figure 5.20-3 Example of host wake-up circuit  
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5.21 Ringer Output (BUZZER) [to be implemented in a future release]  
Pin  
52  
Name  
Direction  
Output  
Function  
BUZZER  
Buzzer output  
Connecting the BUZZER signal to an inverting transistor-buffer followed by a  
piezoelectric transducer enables the wireless modem to play pre-programmed  
melodies or sounds.  
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6 Antenna Connector  
The wireless modem’s antenna connector allows transmission of the radio frequency  
(RF) signals from the wireless modem to an external customer supplied antenna. The  
connector is a micro-miniature coaxial WFL surface mounted component. Suitable  
WFL type mating plug are available from the following manufacturers;  
Hirose  
The nominal impedance of the antenna interface is 50 ohms.  
Feature  
Frequency range (MHz)  
Maximum power  
GSM850  
824-894  
E-GSM900 GSM1800  
880-960 1710-1880 1850-1990  
30dBm(1W)  
GSM1900  
33dBm(2W)  
33dBm(2W)  
50 ohms  
2.5:1 max  
30dBm(1W)  
Antenna Connector impedance  
Antenna VSWR  
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7 Hints for Integrating the Wireless Modem  
This chapter gives you advice and helpful hints on how to integrate the wireless  
modem into your application from a hardware perspective.  
Please read and consider the information under the following headings before  
starting your integration work:  
Safety advice and precautions.  
Installation of the wireless modem.  
Antenna.  
7.1 Safety Advice and Precautions  
7.1.1 General  
Always ensure that use of the wireless modem is permitted. The radio device  
may present a hazard if used in proximity to personal medical electronic devices.  
As a rule, the wireless modem must not be used in hospitals or onboard aircraft.  
You are responsible for observing your country’s safety standards, and where  
applicable the relevant wiring rules.  
Never use the wireless modem at a gas station, refueling point, blasting area or  
in any other environment where combustible vapors or explosives may be  
present.  
Operating the wireless modem close to other electronic devices, such as  
antennas, television sets, and radios may cause electromagnetic interference.  
Never try to dismantle the wireless modem yourself. There are no components  
inside the wireless modem that can be serviced by the user. If you attempt to  
dismantle the wireless modem, you may invalidate the warranty.  
To protect the power supply cables and meet the fire safety requirements, it is  
recommended that the electrical circuits are supplied with a power regulator. The  
power regulator should be placed as close to the terminals of the power supply  
as possible.  
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Do not connect any incompatible component or product to the module.  
Sony Ericsson does not warrant against defects, malfunction, non-  
conformities or deviation caused by the connection of incompatible  
components or products to the GS64.  
NOTE  
The connection/disconnection method for the development board is by means of  
the DC power jack. For this reason, the mains supply should be situated close to  
the development board and be easily accessible.  
7.2 SIM Card  
Before handling any SIM card, users should ensure that they are not charged with  
static electricity. Use proper precautions to avoid electrostatic discharges. The  
wireless modem must be switched off before the SIM card is installed or  
uninstalled.  
When the SIM card holder is opened, the SIM card connections lie exposed under  
the SIM card holder. CAUTION: Do not touch these connections! Failure to heed  
this advice may release an electrical discharge that could damage the wireless  
modem or the SIM card.  
When designing applications, the SIM card’s accessibility should be taken into  
account. Sony Ericsson recommends that users protect SIM card access by a PIN  
code. This will ensure that the SIM card cannot be used by an unauthorized  
person.  
7.3 Antenna  
If the antenna is to be mounted outside, consider the risk of lightning.  
Always follow the instructions provided by the antenna manufacturer.  
Never connect more than one wireless modem to a single antenna.  
The wireless modem can be damaged by radio frequency energy from the  
transmitter of another adjacent wireless transmitter.  
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Like any mobile station, the antenna of the wireless modem emits radio  
frequency energy. To avoid EMI (electromagnetic interference), users must  
determine whether the application itself, or equipment in the application’s  
proximity, requires further protection against radio emission and the  
disturbances it might cause. Protection is secured either by shielding the  
surrounding electronics or by moving the antenna away from the electronics and  
the external signals cable.  
The wireless modem and antenna may be damaged if either come into contact  
with ground potentials other than the one in the users application. Beware,  
ground potential are not always what they appear to be.  
In the final application, the antenna must be positioned more than 20 cm away  
from human bodies. When this rule cannot be applied, the application designer  
is responsible for providing the SAR measurement test report and declaration.  
Even if SAR measurements are not required, it is considered good practice to  
insert a warning in any manual produced, indicating it is a radio product and that  
care should be taken.  
7.4 Installation of the Wireless modem  
7.4.1 Where to Install the Wireless modem  
There are several conditions which need to be taken into consideration when  
designing your application as they might affect the wireless modem and its function.  
They are:  
7.4.1.1 Environmental Conditions  
The wireless modem must be installed so that the environmental conditions stated in  
the Technical Data chapter, such as temperature, humidity and vibration are  
satisfied. Additionally, the electrical specifications in the Technical Data section must  
not be exceeded.  
7.4.1.2 Signal Strength  
The wireless modem has to be placed in a way that ensures sufficient signal  
strength. To improve signal strength, the antenna can be moved to another  
position. Signal strength may depend on how close the wireless modem is to a  
radio base station. You must ensure that the location at which you intend to use  
the wireless modem, is within the network coverage area.  
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Degradation in signal strength can be the result of a disturbance from another  
source, for example an electronic device in the immediate vicinity. More  
information about possible communication disturbances can be found in section  
8.3.5, page 59.  
When an application is completed, you can verify signal strength by issuing the  
AT command AT+CSQ or AT*E2EMM. See the AT Commands Manual for further  
details.  
Before installing the wireless modem, use an ordinary mobile telephone  
to check a possible location for it. In determining the location for the  
radio device and antenna, you should consider signal strength as well  
TIP  
as cable length.  
7.4.1.3 Connection of Components to Wireless modem  
The integrator is responsible for the final integrated system.  
Incorrectly  
designed or installed, external components may cause radiation limits to be  
exceeded. For instance, improperly made connections or improperly installed  
antennas can disturb the network and lead to malfunctions in the wireless  
modem or equipment.  
7.4.1.4 Network and Subscription  
Before the integrator’s application is used, the user must ensure that their  
chosen network provides the necessary telecommunication services. Integrators  
should contact their service provider to obtain the necessary information.  
Integrators intending to use SMS in the application should ensure this is included  
in their (voice) subscription.  
Similarly, integrators intending to use GPRS for data services should also ensure  
that this service is available on their network and in their account plan.  
Users should consider the choice of the supplementary services described in  
section 2.3.2Short Message Service, page 14.  
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7.4.2 How to Install the Wireless modem  
7.4.2.1 Power Supply  
Use a high-quality power supply cable with low resistance. This ensures that the  
voltages at the connector pins are within the allowed range, even during the  
maximum peak current. An electrolytic capacitor should be placed close to the power  
supply pins of the wireless modem to supply the peak currents during burst  
transmission. See 5.5 Regulated Power Supply Input (VCC), page 34.  
7.4.2.2 Grounds  
A ground connection is provided at the mounting hole next to the RF connector on  
the wireless modem (see Figure 5.1, page 19). Connect this ground point to the GND  
pins of the wireless modem by the shortest, low impedance path possible. The  
purpose of this connection is to allow any ESD picked up by the antenna to bypass  
the wireless modem’s internal ground path.  
Note! It is recommended that you use a cable with a maximum resistance of 5  
milliohm for the ground connection.  
Note! AREF and GND are connected at a single point inside the wireless modem.  
They must not be joined together in your application.  
7.4.2.3 Audio  
Use a coupling capacitor in AUXI line if the application does not use the wireless  
modem’s bias voltage. See also Figure 5.9-1 Microphone connections to the wireless  
modem, page 50.  
7.4.2.4 Software Upgrade  
There are two ways of updating the firmware in the GS64. There is a web based tool  
that can access a Sony Ericsson server from where SW can be downloaded. There is  
also an Updater, which is a local application that downloads an image provided by  
SEMC.  
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7.5 Antenna  
7.5.1 General  
The antenna is the component in the users system that maintains the radio link  
between the network and the wireless modem. Since the antenna transmits and  
receives electromagnetic energy, its efficient function will depend on:  
the type of antenna (for example, circular or directional)  
the placement of the antenna  
communication disturbances in the vicinity in which the antenna operates  
In the sections below, issues concerning antenna type, antenna placement, antenna  
cable, and possible communication disturbances are addressed.  
In any event, users should contact their local antenna manufacturer for additional  
information concerning antenna type, cables, connectors, antenna placement, and  
the surrounding area. Users should also determine whether the antenna needs to be  
grounded or not. Usually, a local antenna manufacturer should be able to design a  
special antenna suitable for the integrators application and environment.  
7.5.2 Antenna Type  
Users should ensure that they choose the right type of antenna for the wireless  
modem.  
The antenna must be designed for the frequency bands deployed in the regions that  
the wireless modem is being used. For fixed locations this may be dual bands (for  
example E-GSM900/GSM1800 in Europe; GSM850/GSM1900 in North America). For  
applications which are mobile, users should consider whether three or all four GSM  
bands could be encountered.  
Other factors in choosing antenna are equally important:  
the impedance of the antenna and antenna cable must be 50 ohms at all  
frequencies being used  
the antenna output-power handling capability must be a minimum of 2 W  
the antenna VSWR value should be less than 3:1 to avoid damage to the radio  
device  
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7.5.3 Antenna Placement  
The antenna should be placed away from electronic devices or other antennas. The  
recommended minimum distance between adjacent antennas, operating in a similar  
radio frequency band, is at least 50 cm.  
If signal strength is weak, it is useful to face a directional antenna at the closest radio  
base station. This can increase the strength of the signal received by the wireless  
modem.  
The wireless modem’s peak output power can reach 2 W. RF field strength varies  
with antenna type and distance. At 10 cm from the antenna the field strength may be  
up to 70 V/m and at 1m it will have reduced to 7 V/m.  
In general, CE-marked products for residential and commercial areas, and light  
industry can withstand a minimum of 3 V/m.  
7.5.4 The Antenna Cable  
Use 50 ohm impedance low-loss cable and high-quality 50 ohm impedance  
connectors (frequency range up to at least 2 GHz) to avoid RF losses. Ensure that the  
antenna cable is as short as possible.  
The effectiveness of the antenna, cable and connectors is determined by their  
quality. All connectors, adaptors and cables should be of the highest quality, lowest  
loss, lowest VSWR rating that is affordable to the user.  
Minimize the use of extension cables, connectors and adapters. Each additional  
cable, connector or adapter will result in additional loss of signal power.  
7.5.5 Possible Communication Disturbances  
Communication disturbances can adversely effect the quality of wireless links,  
including the following causes:  
Noise can be caused by electronic devices and radio transmitters.  
Path-loss occurs as the strength of the received signal steadily decreases in  
proportion to the distance from the transmitter.  
Shadowing is a form of environmental attenuation of radio signals caused by  
hills, buildings, trees or even vehicles. This can be a particular problem inside  
buildings, especially if the walls are thick and reinforced.  
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Multi-path fading is a sudden decrease or increase in the signal strength. This is  
the result of interference caused when direct and reflected signals reach the  
antenna simultaneously. Surfaces such as buildings, streets, vehicles, etc., can  
reflect signals.  
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8 Embedded Applications  
The wireless modem has the capability to store and run customer written code in the  
form of a script during the processor’s idle time, through the use of an on board  
interpreter.  
8.1 Features  
Main features of embedded applications are as follows:  
C based scripting language (Sony Ericsson specific)  
Over the air upgrade of scripts (NOT GSM software)  
Library of intrinsic functions  
2 scripts can be stored in the memory at any time (but only 1 can be active)  
8.2 Implementation  
The wireless modem has up to 256k of space available for storage of two scripts in  
the scripting language and TBD of operating RAM. Structures included in this  
language are:  
If - then - else statements  
While loops  
For loops  
All hardware interfaces that are normally available to the wireless modem through  
the AT commands are available to the embedded application.  
Further drivers have been written such as M bus, keypad, SPI and I2C for use by the  
embedded application (EA) through the use of the I/O pins.  
8.2.1 Limitations  
Since the wireless modem is processing the script using its own memory, limitations  
are placed onto the scripts that are run.  
A direct comparison cannot be made to a fully compiled C program in terms of  
size, but a gauge of script size is that if each line were 128 characters long in the  
script then the script could be about 16,000 lines long.  
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Processing power is something that needs to be considered as the script is run  
as a low priority process within the software. However, controller mode stops  
GSM operation and provides all the processing power for the script to be run.  
See the M2mpower Application Guide for more details.  
Code cannot be ported directly from an existing application and loaded directly  
onto the wireless modem. It must be re-written in the Sony Ericsson Mobile  
script language so that the wireless modem interpreter can function correctly.  
8.2.2 M2mpower IDE (Integrated Development Environment)  
The IDE is a Windows based package which allows the user to write, simulate, debug  
and download the application into a wireless modem with the embedded application  
(EA) software. The standard version is designed to run on Windows XP and 2000.  
The M2mpower Application Guide is available for implementing applications using  
the developer’s kit and the embedded application (EA) functionality.  
This is a required package to be able to implement an embedded application (EA).  
For further information please contact Sony Ericsson Mobile Communications  
customer support.  
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9 TCP/IP Stack  
An on board IP/TCP/UDP stack has been integrated into the software negating the  
need for the customer to implement one in their own code base.  
This is accessible by using an embedded applications (see section 9) using intrinsic  
functions or through AT commands.  
9.1 Implementation  
The following types of commands allow various functions:  
Open/closing IP connection - Negotiates/closes a dynamic IP address with the  
web server.  
Send/Receive TCP packets - Performs all TCP operations to send and receive  
packets.  
Send/Receive UDP packets - Performs all UDP operations to send and receive  
packets.  
Resolve URL to an IP address - Similar to nslookup command in DOS When the  
unit is set up and controlled using the embedded applications  
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10 Technical Data  
10.1 Mechanical Specifications  
Refer to Figure 4.2-1  
mechanical features.  
Dimensions of the Wireless modem for reference to  
Variant  
Mechanical Feature  
Value  
Length  
Width  
37 mm  
30 mm  
without SIM holder  
with SIM holder  
2.67 mm  
5.27 mm  
Thickness (see illustration below)  
Weight  
Figure 10.1-1 GS64 module with thickness dimensions  
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10.2 Power supply voltage, normal operation  
Parameter  
Mode  
Limit  
VCC Supply voltage  
Nominal  
Min  
3.6 V  
3.2 V  
Max  
4.5 V  
Absolute maximum limit  
-0.3V to 6.5V  
<100mV @<200kHz  
<20mV @>200kHz  
200mV  
2250 mA (peak)  
2100 mA (avg)  
Maximum supply ripple  
Maximum allowable voltage drop Transmission burst  
Maximum current consumed Full power (2W) transmit  
Stresses in excess of the absolute maximum limits can cause  
permanent damage to the device. These are absolute stress ratings  
only. Functional operation of the device is not implied at these or any  
other conditions in excess of those given in the operational sections of  
the data sheet. Exposure to absolute maximum ratings for extended  
periods can adversely affect device reliability.  
!
WARNING  
10.3 Radio specifications  
Feature  
GSM850  
824-894  
E-GSM900  
880-960  
GSM1800  
1710-1880 1850-1990  
30dBm (1W)  
GSM1900  
Frequency range (MHz)  
Maximum power  
33dBm (2W)  
33dBm (2W)  
30dBm (1W)  
Antenna impedance  
50 ohms  
10.4 SIM card  
Parameter  
1.8V  
3.0V  
5.0V  
External SIM support  
Yes  
Yes  
Yes  
Yes  
No  
No  
Integrated SIM support (optional)  
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10.5Environmental Specification  
Test Case  
Test Summary  
Temp: max storage  
Ref Standard  
Humidity: nominal  
Duration: 16 hours  
Heat Test  
IEC 60068-2-2  
Temp:  
Duration: 16 hours  
min storage  
Cold Test  
IEC 60068-2-1  
IEC 60068-2-14  
Temp (low) : min storage  
Temp (high) : max storage  
2 hrs dwell at each extreme  
6 hrs transition between temps  
Duration: 5 cycles x 16 hours  
(80 hrs total)  
Temperature Cycling  
Temp (low) : min storage  
Temp (high) : max storage  
6 min dwell at each extreme  
0.5 to 3 min transition  
Thermal Shock Test  
IEC 60068-2-14  
IEC 60068-2-30  
Duration: 30 cycles (Group 2,3)  
Temp (low) : nominal ambient  
Temp (high) : max operating  
Humidity (high) : 95% ±5% RH  
Humidity (low) : 93% ±5% RH  
9 hr dwell at each temperature  
3 hr transition between temps  
Duration: 6 cycles x 24 hours  
(144 hrs total)  
Moist Heat Cyclic Test  
SIM insertion : 500 cycles  
System connector : 10,000 cycles  
Flips/Hinges : 1,000 cycles  
RF connector : 5,000  
Operational Durability  
Free Fall Test  
1/52 41-FEA 202 8370  
IEC 60068-2-32 Test Ed  
1m drop height on to concrete  
- all sides  
- all faces  
- all corners  
- any extended features  
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Test Case  
Test Summary  
Ref Standard  
Freq: 10-60 Hz, constant  
displacement ±0.35mm  
Freq : 60-500 Hz, constant  
acceleration 5 g  
Sweep velocity: 1 oct/min  
Sweeps: 5 per axis  
Sinusoidal Vibration  
IEC 60068-2-6  
Axis: 3 axis (x, y, z) per device  
Power Spectral Density:  
2
3
3
3
3
3
5 Hz  
0.10 m /s  
2
12 Hz 2.20 m /s  
2
20 Hz 2.20 m /s  
Random Vibration  
IEC 60068-2-34  
2
200 Hz 0.04 m /s  
2
500 Hz 0.04 m /s  
Duration : 2 hrs each axis  
Axis : 3 axis (x, y, z) per device  
Pulse shape: Half-sine  
Amplitude: 30 g±15%  
Duration:  
Axis:  
No. shocks: 3 each direction  
(18 total)  
6 ms  
±x, ±y, ±z  
IEC 60068-2-27  
Test Ea  
Mechanical Shock Test  
Mechanical force :  
50 N in ±x, -y, ±z directions  
100 N in +y (mating axis)  
Mixed Plug-in  
Connector  
1/152 41-FEA 202 8370  
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11 Regulatory Notices  
The GS64 described in this manual conforms to the Radio and Telecommunications  
Terminal Equipment (R&TTE) directive 99/5/EC with requirements covering EMC directive  
89/336/EEC and Low Voltage directive 73/23/EEC. The product fulfils the requirements  
according to 3GPP TS 51.010-1, EN 301 489-7 and EN60950.  
This device complies with Part 15 of the FCC rules. Operation is subject to the following two  
conditions:  
(1) This device may not cause harmful interference, and  
(2) The device must accept any interference received, including interference that may cause  
undesired operation.  
FCC ID PY7BC051022  
IC: 4170B-BC051022  
This product has not yet received GCF or FCC approval  
Append Declaration  
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Developers Kit  
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12 Introduction to the Universal Developer’s Kit  
The Sony Ericsson M2M universal developer’s kit (UDK) is designed to get you started  
quickly. It contains all the hardware you will need to begin the development of an  
application.  
The only items you need to provide are; a wireless modem, a computer, a SIM card  
with a network subscription, and a knowledge of programming with AT commands.  
The main hardware of the UDK is an open board onto which you plug the wireless  
modem, using an adaptor board where necessary. Connectors, switches, jumpers  
and SIM card holder are provided to allow you to configure and access all the  
functions of the radio device.  
Two version of the UDK exists; the first-generation UDK is designed for legacy M2M  
products available during 2003 to 2005; a second-generation Universal Developers  
Kit Mk 2 is available for M2M products from 2006 onwards. Components, adaptor  
boards and peripheral interfaces are not inter-changeable between the two UDK  
products.  
A separate user manual describes the set-up and use of the UDK. This can be  
downloaded from the Sony Ericsson M2M Extranet web pages or obtained from your  
local sales support representative upon request.  
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