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GSM,GPRS
User Manual
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MIPOT GSM,GPRS User Manual

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3-2000733
GSM/GPRS Data Module
User Manual
Rev. 0 Pg. 1Mipot S.p.A. 10/02/2006
Page 2
HI-TECH COMPANY
GSM/GPRS Data Module
P.n.: 3-2000733
TABLE OF CONTENTS
1
Document Mission ................................................................................................................................................. 4
2 Glossary................................................................................................................................................................. 4
3 Scope of Product ................................................................................................................................................... 7
4 Product environment.............................................................................................................................................. 7
4.1 Modem............................................................................................................................................................ 7
4.2 Memory........................................................................................................................................................... 7
4.3 Power Management........................................................................................................................................ 7
4.4 Interface.......................................................................................................................................................... 8
4.5 Miscellanous features ..................................................................................................................................... 8
5 Product functions ................................................................................................................................................. 10
5.1 System Features........................................................................................................................................... 10
5.2 Modem.......................................................................................................................................................... 13
5.3 RF High POWER .......................................................................................................................................... 15
5.4 Baseband...................................................................................................................................................... 16
5.5 Memory......................................................................................................................................................... 16
5.6 Clock............................................................................................................................................................. 17
5.7 Voiceband..................................................................................................................................................... 18
5.7.1 Handset Mode ....................................................................................................................................... 18
5.7.2 Hands-Free............................................................................................................................................ 18
5.7.3 Ringer Mode .......................................................................................................................................... 18
5.8 Mechanical characteristics ........................................................................................................................... 19
5.9 Power supply ................................................................................................................................................ 20
5.9.1 Current consumptions............................................................................................................................... 21
5.10 Power Saving ............................................................................................................................................ 24
5.10.1 E-POWERlite ............................................................................................................................................ 24
5.10.2 SMARTi..................................................................................................................................................... 25
5.10.3 Serial ports ................................................................................................................................................ 25
5.11 Security ..................................................................................................................................................... 25
5.12 GSM/GPRS modem functionalities........................................................................................................... 26
5.12.1 Supplementary services ........................................................................................................................ 26
5.12.2 Short Message Service ......................................................................................................................... 26
5.12.3 SIM Functionality ................................................................................................................................... 27
5.12.4 AT-command support............................................................................................................................ 27
5.12.5 Other basic features .............................................................................................................................. 27
5.13 Software tools ........................................................................................................................................... 27
5.13.1 SW development tools .......................................................................................................................... 27
5.13.2 Manufacturing tools ............................................................................................................................... 27
5.14 Lay-up and Shielding ................................................................................................................................ 28
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6 User Interfaces..................................................................................................................................................... 29
6.1 PIN OUT description..................................................................................................................................... 29
6.2 SIM Interface ................................................................................................................................................ 31
6.3 Battery .......................................................................................................................................................... 32
6.4 Antenna interface.......................................................................................................................................... 32
6.5 Asynchronous Serial interface...................................................................................................................... 32
6.6 GPIO............................................................................................................................................................. 33
6.7 Real Time Clock ........................................................................................................................................... 33
6.8 SW interfaces ............................................................................................................................................... 34
6.9 Audio interface.............................................................................................................................................. 40
6.9.1 Audio codecs ......................................................................................................................................... 40
6.9.2 Echo canceller/Noise Reduction ........................................................................................................... 40
6.9.3 DAI Mode............................................................................................................................................... 40
6.9.4 Audio devices ........................................................................................................................................ 40
6.9.5 Circuit Description ................................................................................................................................. 41
6.9.6 Polyphonic ringer................................................................................................................................... 41
6.10 ADC interface / Measurement interface.................................................................................................... 42
6.11 SPI............................................................................................................................................................. 42
6.12 I2C bus interface....................................................................................................................................... 42
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1 Document Mission
The User Manual provides all information necessary for a successful integration of 3-2000733 module into the application of the customer. Additionally, the User Manual contains all product functions for application.
2 Glossary
Abbreviation
/ Term
ADC Analog-to-Digital Converter
ADN Abbreviated Dialling Numbers
AFC Automatic Frequency Correction
AND Abbreviated Dialing Number
AMR Adaptive Multi Rate
API Application Programming Interface
ASC Asynchronous Serial Interface Controller
Explanation / Definition
BCCH Broadcast Control Channel
BDN Barred Dialing Number
CB Cell Broadcast
CBCH Cell Broadcast Channel
CCCH Common Control Channel
CD Carrier Detect
CGU Clock Generation Unit
CLI Calling Line Identifcation
CSD Circuit Switched Data
DAI Digital Audio Interface
DCE Data Communication Equipment
DCS Digital Cellular System (1800 MHz)
DCXO Digital Controlled Crystal Oscillator
DL Reception
DSP Digital Signal Processor
DSR Data Set Ready
DTE Data Terminal Equipment
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DTMF Dual Tone Multi Frequency
DTR Data Transmit Receive
EBU External Bus Interface Unit
EFR Enhanced Full Rate
EGSM Extended - Global System for Mobile Communication
EMS Enhanced Messaging Service
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Abbreviation
/ Term
GSM/GPRS Data Module
Explanation / Definition
P.n.: 3-2000733
ESD Electro Static Discharge
ETSI European Telecommunications Standards Institute
FDN Fixed Dialing Number
FFS Flash File System
FR Full Rate
GPIO General Purpose Input/Output
GPP 3rd Generation Partnership Project
GPRS General Packet Radio System
GSM Global System for Mobile Communication
HR Half Rate
HW Hardware
IC Integrated Circuit
I2C Inter-Integrated Circuit
IIR Infinite Impulsive Response
IMEI International Mobile Equipment Identity
JTAG Joint Test Action Group
LDN Last Dialing Number
M2M Machine-to-Machine
ME Mobile Equipment
MIDI Musical Instrument Digital Interface
MS Mobile Station
MSC Multi-Slot Class
N-AMR Narrow-AMR
NOM Network Operating Mode
NV Non Volatile
PA Power Amplifier
PC Personal Computer
PBCCH Packet Broadcast Control Channel
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PCCCH Packet Common Control Channel
PDP Packet Data Protocol
PDU Protocol Data Unit
PLMN Public Land Mobile Network
PPS Protocol and Parameter Selection
PST Protocol Stack
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Abbreviation
/ Term
GSM/GPRS Data Module
Explanation / Definition
P.n.: 3-2000733
PWM Pulse Width Modulation
RF Radio Frequency
RTC Real Time Clock
RX Receiver
SAW Surface Acoustic(al) Wave
SDN Service Dialing Number
SIM Subscriber Identity Module
SMA SubMiniature version A connector
SMS Short Message Service
SMS MO Short Message Service Mobile-Originated
SMS MT Short Message Service Mobile-Terminated
SPMidi Scalable Polyphony MIDI
SPI Serial Peripheral Interface
SSC Serial Synchronous Interface Controller
STK SIM Toolkit
SW Software
TCH Traffic Channel
TX Transmitter
UART Universal Asynchronous Receiver-Transmitter
UL Transmission
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GSM/GPRS Data Module
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3 Scope of Product
3-2000733 is a small, light weight and low power consumption module that enables digital communications services on GSM/GPRS networks for machine to machine or user to machine wireless applications.
3-2000733 modules are developed in compliance with internal and normative certification requirements. In particular, they are certified by CE approval report and Radio & Tele Terminal Equipment Directive (R&TTED) report. Requirements for lead-free components are imposed and satisfied. The product implements a dual-band MS able to operate in the frequency bands EGSM 900 MHz and DCS 1800 MHz; the dynamic behavior can be configured dynamically by disabling/enabling a specific band e.g. through AT commands. Eventually, the module can be configurated either dual-band or tri-band or quad-band.
The supported power classes for both voice and data services will be:
• Class 4 (2W) for GSM band;
• Class 1 (1W) for DCS bands.
The product implements a Class B Mobile Station, offering simultaneous access to GSM and GPRS services. Network operation modes I to III are supported, with user-definable preferred service between GSM and GPRS.
The main buildings blocks of the module are E-GOLDlite (GSM/GPRS Baseband System, Infineon PMB7860) and E-POWERlite (Power Management, Infineon PMB6814). It’s possible connecting SIM card either with an on-board connector or with an external SIM connector. The core of the module is represented by the modem, constituted from E-GOLDlite, a power amplifier (TriQuint TQM7M4006), a transceiver (Infineon SMARTISD2 PMB6271) and a front­end (EPCOS DGM081M03).
4 Product environment
3-2000733 module is composed from the following blocks:
• Modem;
• Memory;
• Power Management;
• Interface;
• Miscellanous features.
4.1 Modem
• Infineon E-GOLDlite PMB7860 GSM/GPRS Baseband System;
• Infineon SMARTISD2 PMB6271 V1.1 GSM 850/900/1800/1900 MHz Voice and Data Quad-Band/Multi-Slot
Transceiver;
• TriQuint TQM7M4006 3V Quad-Band GSM850/900/DCS/PCS Power Amplifier Module with integrated power controller;
• Epcos DGM081M03 Quad Band Antenna Switch Module with integrated SAW filters for GSM850/900/1800/1900 Receiver.
4.2 Memory
• Intel Multi-Chip Package 64Mbits 1.8V Flash and 16Mbits RAM RD38F2030W0YTQ0.
4.3 Power Management
• Infineon E-POWERlite PMB6814. All the modem power rails are supplied by E-POWERlite;
• Battery connector.
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4.4 Interface
• SIM card holder supporting 1.8 V and 3 V card type via E-POWERlite (Suyin 254038MA006G505ZL);
o MMCX Interface connector for RF output (50 Ohm connector MMCX Edge Mount SMD J01341A0081
(Telegartner));
o 60 pin board-to-board connector (MOLEX 54167-0608): Audio (2x analog, 1x digital), I2C bus, SPI bus, 2x
ADC, 2x analog out (PWM), 10 GPIOs;
o 2 UART serial ports: one with HW handshake signals and the other one with SW flow control; o Debug testpoints (JTAG) for C166 and for TEAKlite debug tools.
4.5 Miscellanous features
• 40 tones polyphonic ring tones support.
A block diagram and an overview of the module with the listed components are reported in the following pages.
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Image 1: 3-2000733 block diagram
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Interface connector for RF output Telegartner J01341A0081
Triquint Power Amplifier 7M4006
GSM/GPRS Data Module
Epcos Antenna Switch DGM081M03
P.n.: 3-2000733
Infineon Radio Transceiver SMARTi SD2 PMB6271
Infineon Micro Processor EGOLDlite PMB7860
Intel Memory 8 MB Flash 2 MB RAM RD38F2030W0YTQ0
Infineon
Board-to-Board Connector Molex
Power Management EPOWERlite PMB6814
54167-0608
Image 2: 3-2000733 overview module
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5 Product functions
5.1 System Features
A comprehensive list of 3-2000733’s features is presented in the following table and further detailed in the following paragraphs. The features can be shared in the following sections:
• Generic features;
• GSM/GPRS modem functionalities;
• Mechanical and Electronics features;
• Software features;
• Accessory support ;
• Host SW tools.
Set of features Description
Type approval
Environmental constraints Requirements for lead-free components
CE approval report available
Radio & Tele Terminal Equipment Directive (R&TTED) report available
Platform security concept description available
Security
Secure IMEI management
Secure flashing environment
Secure memory area
Software update
Software update using system connector
Module testing SW
Service software API functionality
Rewrite IMEI
Manage SIM locks
Backup and restore user data
Defect logger to analyze memory trace
Manufacturing requirements Flashing throughput (for 8 Mbytes memory) : 400 kbps
GSM standard compliancy ETSI GSM Phase 2+ (R99)
EGSM 900 MHz
Frequency Bands
DCS 1800 MHz
Disable band/Manual band selection
GPRS multi-slot class (MSC) 10 (4+1, 3+2)
GPRS PBCCH/PCCCH support
CBCH reception when on PBCCH supported
GSM/GPRS Data Services
SMS Short message service
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GPRS Class B and CC
Coding scheme CS-1, CS-2, CS-3, CS-4
Network operation mode I, II, III
CSD up to 9.6kbps (V.32, V.110)
FAX G3, Class 2.0
Short Message Service Mobile-Terminated (SMS MT)
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Set of features Description
Short Message Service Mobile-Originated (SMS MO)
SMS-CB Cell Broadcast (SMS CB)
Concatenated SMS
Via GSM or GPRS
Text and PDU mode
Abbreviated Dialling Numbers (ADN)
Fixed Dialling Numbers (FDN)
Last Dialled Numbers (LDN)
SIM Functionality
Service Dialling Numbers (SDN)
SIM Lock protection
SIM Toolkit
Network
Network subset
SIM Locks
Service provider
Corporate
P.n.: 3-2000733
Basic Mobile Station features
GSM Supplementary services
Operator
Display of Called Number
Indication of Call Progress Signals
Country/PLMN Indication
Short Message Indication and Acknowledgement
International Access Function
Service Indicator
Dual Tone Multi Frequency (DTMF)
Subscription Identity Management
On/Off Switch
Service Provider Indication
Call Hold (CH)
Call Waiting (CW)
Multi-Party (MTPY)
Call Forwarding (CF)
Explicit Call Transfer (ECT)
Call Barring (CB)
Calling Line Identification Presentation (CLIP)
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Audio Codecs
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Calling Line Identification Restriction (CLIR)
Connected Line Identification Presentation (COLP)
Connected Line Identification Restriction (COLR)
Unstructured Supplementary Services Data (USSD)
Speech codecs FR (Full rate) / EFR (Enhanced Full Rate) / HR (Half Rate)
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Set of features Description
Speech codecs AMR (Adaptive Multi Rate)
Encryption algorithms A5/1
Encryption algorithms
Encryption algorithms A5/2
Number of RF shield required = 1
Mechanical features
Number of PIN's used for SW flashing = 3 (RX/TX and Ground)
RF connector
Connector
Board to board connector
SIM holder
RTC Real Time Clock (RTC) supported with alarm capabilities
SIM connector on-board or external
SIM voltage: 1.8 and 3 V
SIM
High-speed interface
External SIM ESD protection required.
P.n.: 3-2000733
External SIM connector support
Largest capacity single memory chip 16MB
Flash Memory
Maximum FFS data write rate 20 Kbytes/s
Largest capacity single memory chip 4 MB
RAM
Memory providers supported: Intel
Page mode support
Protection circuitry integrated on the platform
Charging of deeply discharged battery must be possible.
Battery
Charging during phone call
Maximum charging current of battery :1100 mA
Audio features Handsfree and headset operation
Echo canceller
Audio filter types supported
Noise reduction
Number of GPIO-interfaces 6
Number of UART's 2
Number of free UART's for user : 1
I/O Interfaces
One UART with complete 9-pin UART 1
Max speed UART (AT commands) 115.2 kbps
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One UART with RX/TX 1
Power on Power on time (sec) 3 sec
Redial missed and/or received calls (CLI)
Call Handling
Abbreviated Dialling
Full duplex
Call phone
Ringtones
Polyphonic ringtones
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Set of features Description
Audio formats integrated with the
hardware
Accessory support
SW development tools
Manufacturing tools
5.2 Modem
GSM/GPRS Data Module
P.n.: 3-2000733
HR, FR, EFR, AMR
MIDI 1.0
iMelody
Number of simultaneous polyphonic tones (without extra HW) 40
Audio headset
Charger
Tracing tools available
Audio tools available
PC application development tools available
Flashing tools available
RF tuning tools available
The modem part provides with minimal component’s list all functionality necessary for voice and data transmission over GSM and GPRS network. The modem is divided in two separated areas surrounded by traces on which metal boxes can be soldered. The first area encloses the RF High power components and the remaining passive components of the transceiver; the second area groups baseband processor, memory, crystals and power management unit. The modem is designed as a four-band transceiver, i.e. GSM850/900/1800/1900. The modem is composed from the following components:
o Infineon E-GOLDlite PMB7860 GSM/GPRS Baseband System; o Infineon SMARTISD2 PMB6271 V1.1 GSM 850/900/1800/1900 MHz Voice and Data Quad-Band/Multi-Slot
Transceiver;
o Epcos DGM081M03 Quad Band Antenna Switch Module with integrated SAW filters for
GSM850/900/1800/1900 MHz Receiver;
o Infineon E-POWERlite PMB6814. All the modem power rails are supplied by E-POWERlite; o Intel Multi-Chip Package 64Mbits 1.8V Wireless Flash and 16Mbits RAM RD38F2030W0YTQ0.
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GSM/GPRS Data Module
RF High Power
P.n.: 3-2000733
Baseband Memory Power Management RF Transceiver
Image 3: Overview of main parts of 3-2000733 module
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5.3 RF High POWER
Core of RF part is the SMARTiSD2 transceiver which performs modulation and up-conversion of I/Q signal as well as down-conversion and demodulation of the RF received signals. The interface between E-GOLDlite and SMARTiSD2 is balanced I/Q analog signal, time shared by transmitter and receiver. Programming of SMARTiSD2 transceiver is done through dedicated 3-wires interface of E-GOLDlite. Timing are provided by the built-in GSM Timer Unit of E-GOLDlite; the antenna switch and PA are commanded via trigger signal TOUT0, TOUT[2..3]. SMARTiSD2 provides two different RF TX outputs respectively for 850/900 and 1800/1900 bands. TriQuint TQM7M4006 PA amplifies these signals maintaining two separate paths. The PA is directly connected to the VBAT supply. The power ramp control is provided by E-GOLDlite to the PA module, which has a built-in power controller. Quad Band Epcos antenna switch integrates SAW filters and matching for all the RX paths. It is directly connected to the RX inputs of SMARTiSD2. The RF I/O signal is by default provided to 50ohm SMA connector. Printed antenna is selectable as RF I/O interface by soldering some matching components.
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Image 4: 3-2000733 RF High Power block diagram
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5.4 Baseband
3-2000733 baseband system provides all necessary interfaces for design a realistic phone and additional interface for hardware/software designing and debugging. Phone design includes the following interfaces:
• SIM card holder supporting 1.8 and 3V card type.
• System connector on phone with serial data I/O with handshake signals.
Outside phone design there are the following interfaces:
• 2 UART: ASC0 with hardware handshake signals and ASC1 without flow control. Both of them are accessible on Molex board-to-board connector and supports high speed dataflow.
• Debug connectors (JTAG) for C166 and for TEAKlite debug tools.
Image 5: 3-2000733 Baseband block diagram
5.5 Memory
GSM modem is equipped with Intel RD38F2030W0YTQ0 Multi-Chip–Memory combo:
• 64 Mbits 1.8V Flash;
• 16 Mbits RAM;
• ROM footprint amount to ca 4MB;
• A max of 2MB is provided to a file system service of customizable size;
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• The maximum storable file size is 1 MB.
• The maximum FFS data write rate is 20 Kbytes/s.
Page mode is supported for enhanced system performance.
5.6 Clock
The 26MHz master clock is generated by SMARTiSD2 with a fully integrate digital controlled crystal oscillator (DCXO), whose signal is used as a reference frequency for the radio synthesizer and also provided to the baseband IC, after a buffer amplifier. The only external component needed for oscillator is a quartz crystal. The oscillator and buffer are supplied by VRF2: powering it up activates the 26MHz clock. The baseband provide Automatic Frequency Correction (AFC) to SMARTiSD2 with control words sent on the 3­wires interface to guarantee the GSM frequency stability requirements. E-GOLDlite has built-in Clock Generation Unit (CGU) that generates and distributes the suitable clock signals to all the baseband sections.
The Real Time Clock (RTC) is implemented with a 32 KHz quartz crystal for E-GOLDlite internal oscillator.
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Image 6: Block diagram of 3-2000733 clock system
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5.7 Voiceband
5.7.1 Handset Mode
The normal voiceband functional mode of the phone is completely handled by E-GOLDlite:
- Microphone bias current is provided by internal regulator VMIC;
- Microphone signal is directly connected to input MICP1/MICN1;
- Earpiece is directly driven by EPPAx outputs and it’s connected by pass-through wires on the top of the display module;
- Additional HandSet Plug is located outside phone design.
5.7.2 Hands-Free
In hands-free mode several hardware connections allow multiple mode of operation. In standard mode, the microphone signal comes from the external stereo head-set device and is connected to MICP2/MICN2 inputs of E-GOLDlite. Voice output from E-GOLDlite EPP1 is connected to the Stereo Audio Amplifier (in mono), and then to the external audio device. In viva voice mode of operation, the output signal of EPP1/EPN1 is amplified by the built-in Audio amplifier of E­POWERlite, and then applied to the Loudspeaker output. Loudspeaker (mechanical assembled with earpiece) is connected by pass-through wires on the top of the display module.
5.7.3 Ringer Mode
The ringer tones are generated by E-GOLDlite built-in generator and then they are amplified by E-POWERlite amplifier before being applied to loudspeaker. Otherwise, the generated ringer signal might be applied to the Stereo audio amplifier that serves the head-set external device.
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Image 7: 3-2000733 audio interface block diagram
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5.8 Mechanical characteristics
The Number of RF shield required is 1. For mechanical characteristics of GSM/GPRS module refer to the following images:
Image 8: 3-2000733 3D representation
Mechanical and environment Value
Size 33 x 38 x 5.6 mm
Weight < 10 g
Operating temperature range From -20°C to +55°C
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5.9 Power supply
The on board power supply is derived by Molex connector that provides a voltage value VBAT on pins 1, 3, 5, 7. The range of VBAT is between 3.3 V and 4.3 V, while typically its value is 3.8 V.
Description Min Typ Max
Supply voltage 3.5 V 3.8 V 4.2 V
The modem starting from this VBAT voltage derives all the needed voltage levels to supply the different circuit parts by the power management IC Infineon E-POWERlite PMB6814.
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Image 9: Power supply block diagram
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The supply domain might have different setting and they are programmed via a dedicated EP_I2C bus (implemented with SW driver) by E-GOLDlite at startup. All the other programming of the E-POWERlite are performed in the same way. Please refer to the Infineon datasheets for detailed specifications. E-POWERlite should be pin-to-pin compatible with S/M-POWER PMB6811.
Supply name Supply domain Voltage level Supply device remarks
SDBB V_SD 1.92 V
1.86 V
1.80 V
1.50 V
LBB1 VBB1
1.50 V
1.65 V
LBB2 VBB2
1.50 V
1.65 V LANA VANA LINT VINT LSIM1 VSIM
2.65 V
2.72 V
2.85 V
1.8 V LSIM2 2V85 LRTC VRTC
LRFC VRF0
LRF1 VRF1 LRF2 VRF2 LMMC VMMC
2.85 V
2.11 V
1.5 V
2.5 V
2.5 V
2.85 V
The voltage levels written in bold are the output voltage values after start-up. The PA is directly supply by VBAT. Two hot spots can be considered: the PA, and the E-POWERlite. The heat dissipation is based on the thermal resistance reduction around these two components by using a large number of vias in those regions.
Step-Down converter: E-GOLDlite core (Input for LBB1 and LBB2 baseband supply) + External Bus Unit of E-GOLDlite + Memories
E-GOLDlite DSP (TEAKlite) supply (supplied by SDBB) E-GOLDlite core supply including C166 (supplied by SDBB), Main, PLL power supply Analog Supply of E-GOLDlite DIGA, DIGB and external SIM holder External and internal SIM interface
N. A. Ultra-low zero-load current for Real Time Clock supply SMARTi-SD2 Core (supplied by SDBB via VDDC input) SMARTi-SD2 main supply SMARTi-SD2 Antenna switch
5.9.1 Current consumptions
Current consumptions of the module are reported in the following pages. All measurements have been performed at the following conditions:
Power OFF current: < 30
BAND: GSM900
TEST SETTINGS: DRX: 5 BA LIST arfcn: 1 9 17 26 34 42 50 58 67 75 83 91 99 108 116 124 PCL: 5
µA.
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GSM900
Idle mode
Average current:
1.16 mA
GSM900
Allocated mode
Average current:
144.92 mA
Image 10: Current consumption at 900 MHz
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GSM/GPRS Data Module
BAND: GSM1800
TEST SETTINGS: DRX: 5 BA LIST arfcn: 512 530 560 580 610 640 670 700 720 740 760 790 810 840 860 PCL: 0
P.n.: 3-2000733
GSM1800
Idle mode
Average current:
1.13 mA
GSM1800
Allocated mode
Average current:
105.63 mA
Image 11: Current Consumptions at 1800 MHz
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5.10 Power Saving
Power saving is a special function that allows the reducing of power consumption during the idle time. If the clock increases, required power increases too. Therefore a solution for minimizing the power is the reducing of the master clock frequency when there aren’t activities. In this period the system doesn’t work with a clock of 26 MHz (“fast clock”) but with a clock of 32 KHz (RTC clock or “slow clock”). This switching between 26 MHz and 32 KHz clock is performed by SCCU (Standby Clock Control Unit).
Main priorities of power saving are the following:
1. Reduce base (min) current consumption;
2. Minimize full-speed running periods, minimize power saving on/off switching;
3. Reduce max current consumption.
These points are reported in the following figure:
Image 12: Power saving priorities
5.10.1 E-POWERlite
If the voltage decreases, the power decreases too. VCXO_en control voltage is applied to E-POWERlite to selectively shutdown supply voltage lines LRF0, LRF1 and LRF2 for radio frequency part. VCXO_en control voltage is used in PWM Ù PFM StepDown converter, since PFM mode requires less switching (less power) than PWM on light loads.
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T T T T
PWM mode - heavy load
PWM mode – light load
PFM mode - light load
t t t
Image 13: E-POWERlite comportament during Power Saving
P.n.: 3-2000733
E-POWERlite built-in audio amplifier shall also shut down when unused via proper I2C messages.
5.10.2 SMARTi
SMARTi and BaseBand are linked via a 3-wire bus (Clock, Data, and Enable). Since Enable is active low (and inactive high), it is forced low before enter power saving, else SMARTi will be pseudo supplied via Enable input junctions. This may be very harmful for relevant BaseBand output port HW and consumes power.
Enable is restored high when power saving exits. Moreover SMARTi has also to be reinitialized, just like the first power up (stealth telegrams).
Image 14: SMARTi comportament during Power Saving
5.10.3 Serial ports
It is impossible to receive and send on Asynchronous Serial Communication (ASC) ports at standard speeds in power saving. DCE serial port relies on hardware flow control logic. DTE shall cache serial data flow if it senses CTS inactive (high logic). CTS is set inactive while power saving and set active while running at full speed and ready to receive. Since power saving exits at least every 2 seconds, DTE shall be capable to cache up to 2 seconds of information flow (host polling mode). System waits on a software timer for 5000 frames (23.077 sec) after the last valid character received, allowing immediate response, before re-enter power saving. Hardware flow control is currently supported only on ASC0, not on ASC1.
5.11 Security
3-2000733 supports a security module that prevents uncontrolled installation/updates of software on delivered products. The IMEI (International Mobile Equipment Identity) cannot not be changed after the ME’s final production process: the protection of the IMEI shall resist tampering, i.e. manipulation and change by any means (e.g. physical, electrical and software). The security module provides the required measures to fulfill these IMEI protection requirements. For protection against flash tampering, the system uses a unique Chip Identification Number for encryption and authentication of valid flash memory images.
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A secure flashing environment is provided: in order to restrict communication with the ME only to authorized PC tools (e.g. production test equipment), the security module implements an authentication handshake with the PC tools that are provided with a suitable HW dongle.
5.12 GSM/GPRS modem functionalities
3-2000733 GSM/GPRS module integrates a full-featured R99 GSM-GPRS Protocol Stack, whose main characteristics are listed in the following. Refer to the PICS/PIXIT documentation for a detailed description of the Stack features. The module can be configurated either dual-band or tri-band or quad-band. The product implements a dual-band MS able to operate in the frequency bands EGSM 900 MHz and DCS 1800 MHz; the dynamic behavior can be configured dynamically by disabling/enabling a specific band e.g. through AT commands. The supported power classes for both voice and data services will be:
• Class 4 for GSM band;
• Class 1 for DCS bands.
The product implements a Class B Mobile Station, offering simultaneous access to GSM and GPRS services. Network operation modes I to III are supported, with user-definable preferred service between GSM and GPRS. Optionally paging messages for GSM calls can be monitored during GPRS data transfer in not-coordinating network operation mode NOM II-III. PBCCH/PCCCH logical channels are supported, as well as CBCH reception. GPRS multislot 10 is implemented, implying a maximum of 4 slots in DL (reception) and 2 slots in UL (transmission) and 5 slots on the whole. Finally the GSM/GPRS module supported:
• All coding schemes from CS1 to CS4;
• As for the circuit switched services, speech channel modes HR and FR version 1, 2 and 3 (FR, HR, EFR,
N-AMR) are supported;
• Encryption algorithms A5/1 and A5/2 for GSM for GPRS are supported;
• CS Data calls are supported in transparent/non transparent mode up to 9.6 kbps;
• Bearer service fax Group 3 Class 2.0 is supported.
Among access interfaces to DTE, both V.32 and V.110 are provided.
5.12.1 Supplementary services
The following supplementary services are provided:
• Call Hold (CH);
• Call Waiting (CW);
• Multi-Party (MTPY);
• Call Forwarding (CF);
• Explicit Call Transfer (ECT);
• Call Barring (CB);
• Calling Line Identification Presentation (CLIP);
• Calling Line Identification Restriction (CLIR);
• Connected Line Identification Presentation (COLP);
• Connected Line Identification Restriction (COLR);
• Unstructured Supplementary Services Data (USSD).
5.12.2 Short Message Service
Mobile-originated as well as mobile-terminated SMS are supported. Text and PDU mode are supported. Reception of SMS during circuit-switched calls is supported. Reception of SMS via GPRS is also supported. SMS SIM storage is provided.
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5.12.3 SIM Functionality
Among SIM functionalities, the following services of the SIM are supported:
• Abbreviated Dialing Numbers (ADN);
• Fixed Dialing Numbers (FDN);
• Last Dialed Numbers (LDN);
• Service Dialing Numbers (SDN);
• ME Personalization (SIM Lock).
ME Personalization handling is a mechanism to tie the ME operation to one specific SIM card or to a limited range of SIM cards from a given Network Operator or Service Provider. The ME will only accept the SIM if there is a positive match between the personalization code group(s) stored in the ME and the code group(s) belonging to the inserted SIM. The SIM Lock feature supported by the GSM/GPRS module enables ME personalization through the following personalization categories:
• Network lock;
• Network subset lock;
• Service provider lock;
• Corporate lock;
• Operator lock.
SIM Toolkit R 99 is supported. For a detailed description of the STK features, refer to the PICS/Pixit documentation.
5.12.4 AT-command support
The modem functionalities and services are provided through a rich serial AT-command interface. All supported standard as well as proprietary AT commands are detailed in the table of SW interface.
5.12.5 Other basic features
Within the scope of the M2M or user interface, the following indications and functionalities are supported:
• Display of Called Number;
• Indication of Call Progress Signals;
• Country/PLMN Indication;
• Short Message Indication and Acknowledgement;
• International Access Function;
• Service Indicator;
• Dual Tone Multi Frequency (DTMF);
• Subscription Identity Management;
• Service Provider Indication;
• Abbreviated Dialing;
• Power on (external input).
5.13 Software tools
The GSM/GPRS module supports a development tool suite that caters for trace, programming target flash, calibration and production testing.
5.13.1 SW development tools
A trace tool is supported to debug the software behavior through serial communication port 2 (UART1). Almost all supported AT commands can be entered on the trace port itself for sake of usability.
5.13.2 Manufacturing tools
Manufacturing/llaboratory tools comprise:
• Flashtool, a multithreaded application to handle the download of software to target (up to 8 target concurrently), conceived to be used in manufacturing sites and hardware key protected;
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• Phonetool, an application to handle the target software’s functionalities, giving access to several driver functionalities such RF, Audio, FFS, EEPROM, power management, etc.
In particular, Phonetool provides support for:
• the generation of EEPROM maps used to access the target EEPROM from host;
• the generation of EEPROM structures defaults;
• the FFS formatting of the file system binary image file;
• RF calibration;
• Audio filters measurements and tuning.
5.14 Lay-up and Shielding
3-2000733 GSM/GPRS modem is placed and routed on a single face of 6 layers build up printed circuit board. Electronics parts are placed on both sides. The RF connections traces dimensions are calculated to achieve the wanted characteristic impedance and are placed on Layer4. Layer 3 is full ground. Layer5 is also mostly RF ground under sensible RF parts, with suitable clearance over components pads. The VBATT track is routed on Layer2 and Layer5. Quad band printed antenna elements are on Layer6 and Layer1. The following picture shows the lay-up main dimensions.
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Image 15: Lay-up main dimensions (Surface Finishing: Chemical Gold Plate Ni 5 uM / Au 0.1 uM)
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6 User Interfaces
6.1 PIN OUT description
A 60-pin connector is provided to interface of 3-2000733 module for the power supply, SIM interface, audio interface (2 x analog, 1x digital), I2C bus, SPI bus, 2 x analog in (ADC), 2 x analog out (PWM), 2 UART serial ports, and 10 GPIOs.
PIN
#
1 VBAT PWR GSM Power Supply
2 GND PWR GSM Power Supply Ground
3 VBAT PWR GSM Power Supply
4 GND PWR GSM Power Supply Ground
5 VBAT PWR GSM Power Supply
6 GND PWR GSM Power Supply Ground
7 VBAT PWR GSM Power Supply
8 GND PWR GSM Power Supply Ground
9 VCHARGE PWR GSM Power Supply
10 DCD O
11 VCHARGE PWR GSM Power Supply
12 DTR I
13 SIM_VCC I/O SIM interface
14 CTS_0 I
15 SIM_IO I/O SIM interface
16 RTS_0 O
17 SIM_CLK O SIM interface
18 RXD_0 I
19 SIM_RST O SIM interface
20 TXD_0 O
21 MRST0/GPIO I/O
22 RI O
Name I/O Function I/O type Description
From 3.3 to 4.3 V
(Typ: 3.8 V)
Should be connected
with pins 3, 5, 7
Should be connected
with pins 4, 6, 8
From 3.3 to 4.3 V
(Typ: 3.8 V)
Should be connected
with pins 1, 5, 7
Should be connected
with pins 2, 6, 8
From 3.3 to 4.3 V
(Typ: 3.8 V)
Should be connected
with pins 1, 3, 7
Should be connected
with pins 2, 4, 8
From 3.3 to 4.3 V
(Typ: 3.8 V)
Should be connected
with pins 1, 3, 5
Should be connected
with pins 2, 4, 6
Asynchronous
Serial Interface 0
Asynchronous
Serial Interface 0
Asynchronous
Serial Interface 0
Asynchronous
Serial Interface 0
Asynchronous
Serial Interface 0
Asynchronous
Serial Interface 0
Synchronous Serial Interface
(SPI compatible)
Asynchronous
Serial Interface 0
0 - 12V (Typ: 6V) Current limited to
600 mA
CMOS 3.3V
compatible 0 - 12V (Typ: 6V) Current limited to
600 mA
CMOS 3.3V
compatible
Supply
1.8V-3.3V
CMOS 3.3V
compatible
CMOS 3.3V
compatible
CMOS 3.3V
compatible
CMOS 3.3V
compatible
CMOS 3.3V
compatible
CMOS 3.3V
compatible
CMOS 3.3V
compatible
CMOS 3.3V
compatible
CMOS 3.3V
compatible
Should be connected
with pin 11
Data Carrier Detect
Should be connected
with pin 9
Data Terminal Ready
SIM power supply
Clear To Send
SIM I/O serial data
Request to Send
SIM clock signal
Receive Serial Data
SIM reset signal
Transmit Serial Data
Master Receive Slave
Transmit
Ring Indicator
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PIN
#
23 MTSR0/GPIO I/O
24 DSR O
25 SCLK0/GPIO I/O
26 RXD_1 I
27 SCL/GPIO O I2C bus interface
28 TXD_1 O
29 SDA/GPIO I/O I2C bus interface
30 KEYOUT0/GPIO I/O
31 CLK0_DAI/GPIO I/O Digital Audio Interface
32 KEYOUT1/GPIO I/O
33 RXD_DAI/GPIO I Digital Audio Interface
34 KEYOUT2/GPIO I/O
35 TXD_DAI/GPIO O Digital Audio Interface
36 KEYOUT3/GPIO I/O
37 WA0_DAI/GPIO I/O Digital Audio Interface
38 KEYOUT4/GPIO I/O
39 EXTRSTn I External reset
40 KEYOUT5/GPIO I/O
Name I/O Function I/O type Description
Synchronous Serial Interface
(SPI compatible)
Asynchronous
Serial Interface 0
Synchronous Serial Interface
(SPI compatible)
Asynchronous
Serial Interface 1
CMOS 3.3V
compatible
CMOS 3.3V
compatible
CMOS 3.3V
compatible
CMOS 3.3V
compatible
CMOS 3.3V
compatible
Asynchronous
Serial Interface 1
CMOS 3.3V
compatible
CMOS 3.3V
compatible
Keypad interface /
GPIO
CMOS 3.3V
compatible
CMOS 3.3V
compatible
Keypad interface /
GPIO
CMOS 3.3V
compatible
CMOS 3.3V
compatible
Keypad interface /
GPIO
CMOS 3.3V
compatible
CMOS 3.3V
compatible
Keypad interface /
GPIO
CMOS 3.3V
compatible
CMOS 3.3V
compatible
Keypad interface /
GPIO
CMOS 3.3V
compatible
CMOS 3.3V
compatible
Keypad interface /
GPIO
CMOS 3.3V
compatible
41 MICP1 I Audio Interface Analog
42 KEYIN0/GPIO I/O
Keypad interface /
GPIO
CMOS 3.3V
compatible
43 MICN1 I Audio Interface Analog
44 KEYIN1/GPIO I/O
Keypad interface /
GPIO
CMOS 3.3V
compatible
45 EPPA1B O Audio Interface Analog
46 KEYIN2/ON I/O
Keypad interface /
Power on
CMOS 3.3V
compatible
47 EPPA2A O Audio Interface Analog
48 KEYIN3/GPIO I/O
Keypad interface /
GPIO
CMOS 3.3V
compatible
P.n.: 3-2000733
Master Transmit Slave
Receive
Data Set Ready
Shift Clock
Receive Serial Data
Serial Clock Line
Transmit Serial Data
Serial Data Line
Keypad output pin 0 /
GPIO 00
DAI Clock
Keypad output pin 1 /
GPIO 50
DAI Receive
Keypad output pin 2 /
GPIO 01
DAI Transmit
Keypad output pin 3 /
GPIO 02
DAI Reset
Keypad output pin 4 /
GPIO 03
External HW reset
Keypad output pin 5 /
GPIO 04
Handset microphone
reference
Keypad input pin 0 /
GPIO 05
Handset microphone
bias
Keypad input pin 1 /
GPIO 06 Balanced audio out
Keypad input pin 2 /
Power on button
/GPIO 07 Balanced audio out
Keypad input pin 3
/ GPIO 08
49 MICP2 I Audio Interface Analog Handset microphone
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PIN
#
Name I/O Function I/O type Description
50 CAP19/GPIO I/O
GSM/GPRS Data Module
Capture Compare /
GPIO
CMOS 3.3V
compatible
P.n.: 3-2000733
51 MICN2 I Audio Interface Analog
52 CAP02/GPIO I/O
Capture Compare /
GPIO
CMOS 3.3V
compatible
53 AUOP O Audio Interface Analog
54 CAP05/GPIO I/O
Capture Compare /
GPIO
CMOS 3.3V
compatible
55 AUON O Audio Interface Analog
56 CAP06/GPIO I/O
Capture Compare /
GPIO
57 ADC1 I Measurement interface
58 CAP00_EX5IN/GPIO I/O
Capture Compare /
GPIO / External Interrupt
59 ADC2 I Measurement interface
60 CAP22_EX3IN/GPIO I/O
Capture Compare /
GPIO / External Interrupt
CMOS 3.3V
compatible
ADC 12bits
0-2.5V
CMOS 3.3V
compatible
ADC 12bits
0-2.5V
CMOS 3.3V
compatible
reference
Capture Compare 19
/ GPIO 47
Handset microphone
bias
Capture Compare 02
/ GPIO 57
Balanced power audio
out
Capture Compare 05
/ GPIO 28
Balanced power audio
out
Capture Compare 06
/ GPIO 30
Analog to Digital
Converter
Capture Compare 00
/ GPIO 30 / Ext Int 5B
Analog to Digital
Converter
Capture Compare 22
/ GPIO 55 / Ext Int 3
Image 16: Board-to-Board connector overwiew
6.2 SIM Interface
3-2000733 module can be equipped with an on-board SIM connector or an external SIM connector. High-speed SIM/ME interface is implemented. Both 1.8V and 3V SIM type will be supported (1.8/3V ME); activation and deactivation with automatic voltage switch from 1.8V to 3V are implemented, according to ISO-IEC 78-16-e Specifications. The SIM driver supports the PPS (Protocol and Parameter Selection) procedure for baud-rate selection, according to the values proposed by the SIM Card. Clock stop is supported at both high and low level. Finally, external SIM ESD protection is required.
Name PIN # I/O I/O type Description
SIM_VCC 13 I/O Supply 1.8V 3.3V SIM Power Supply
SIM_IO 15 I/O CMOS 3.3V compatible SIM I/O Serial Data
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Name PIN # I/O I/O type Description
SIM_CLK 17 O
SIM_RST 19 O
CMOS 3.3V compatible
CMOS 3.3V compatible
SIM Clock Signal
SIM Reset Signal
6.3 Battery
The supported type for the battery shall be Li-Ion rechargeable only; default system will support 650mAh nominal. Protection circuitry is integrated on the module. The Battery/Charger functionality provides:
• battery charging control, i.e. constant voltage charging and trickling of charging in order to maintain the full capacity of the battery;
• pulse charge mode, to improve capacity estimation accuracy;
• capacity estimation during charging, no charging, ongoing calls, etc., constantly considering the different
load parameters of the phone;
• Measurements of battery voltage, RF and battery temperature, equipment status, etc.
Charging of deeply discharged battery as well as charging during phone call is possible.
The module has a current consumption lower than 3mA during idle mode reception, lower than 300 mA in connected mode on GSM band and lower than 180mA in connected mode on DCS band (measurements are performed following the GSM Association Battery Life Measurement Technique Document). The charging battery range goes from 400 to 1100 mA with a step of 100 mA.
Name PIN # I/O I/O type Description
VBAT 1 PWR From 3.3 to 4.3 V (Typ: 3.8 V) Should be connected with pins 3, 5, 7
GND 2 PWR Ground Should be connected with pins 4, 6, 8
VBAT 3 PWR From 3.3 to 4.3 V (Typ: 3.8 V) Should be connected with pins 1, 5, 7
GND 4 PWR Ground Should be connected with pins 2, 6, 8
VBAT 5 PWR From 3.3 to 4.3 V (Typ: 3.8 V) Should be connected with pins 1, 5, 7
GND 6 PWR Ground Should be connected with pins 2, 4, 8
VBAT 7 PWR From 3.3 to 4.3 V (Typ: 3.8 V) Should be connected with pins 1, 5, 7
GND 8 PWR Ground Should be connected with pins 2, 4, 6
VCHARGE 9 PWR
From 0 to 12 V (Typ: 6V)
Current limited to 600 mA
Should be connected with pin 11
VCHARGE 11 PWR
From 0 to 12 V (Typ: 6V)
Current limited to 600 mA
Should be connected with pin 9
6.4 Antenna interface
A 50 Ohm SMA connector is provided as antenna connector for GSM functionality.
6.5 Asynchronous Serial interface
Two serial ports (ASC0 UART and ASC1 UART) are supported working at the selected baud rate (default 115.2 kbps): on ASC0 complete 9 pin serial port is supported and power saving wakeup is available. This interface is fully RS232 9-pin logical compliant and support full HW flow control. Default UART configuration implies ASC0 devoted to AT interface, ASC1 available for debug/tracing (only RX/TX lines).
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These serial interfaces are available complying with V.24 protocol and the signals are:
• TX Data (TXD_0);
• RX Data (RXD_0);
• Request to Send (RTS_0);
• Clear to Send (CTS_0);
• Data Terminal Ready (DTR);
• Data Set Ready (DSR).
To avoid floating if output pins are high-impedance, use pull-up resistors tied to GSM_VDD or pull-down resistors tied to GND. The first 6 pin reported in the table refer at the first serial interface, while the last two refer at the second serial interface.
Name PIN # I/O I/O type Description Serial interface #
DCD 10 O CMOS 3.3V compatible Data Carrier Detect
DTR 12 I CMOS 3.3V compatible Data Terminal Ready
CTS_0 14 I CMOS 3.3V compatible Clear To Send
RTS_0 16 O CMOS 3.3V compatible Request to Send
RXD_0 18 I CMOS 3.3V compatible Receive Serial Data
Asynchronous
Serial Interface 0
TXD_0 20 O CMOS 3.3V compatible Transmit Serial Data
RI 22 O CMOS 3.3V compatible Ring Indicator
DSR 24 O CMOS 3.3V compatible Data Set Ready
RXD_1 26 I CMOS 3.3V compatible Receive Serial Data
TXD_1 28 O CMOS 3.3V compatible Transmit Serial Data
Asynchronous
Serial Interface 1
6.6 GPIO
All General Purpose I/O (GPIOs) shall be initialized to proper direction / output logic level as soon as possible. If supply is removed from external device, relevant GPIOs should be placed at low logic level, or decoupled.
Name PIN # I/O I/O type Description
GPIO 0 30 I/O CMOS 3.3V compatible GPIO 00
GPIO 1 32 I/O CMOS 3.3V compatible GPIO 50
GPIO 2 34 I/O CMOS 3.3V compatible GPIO 01
GPIO 3 36 I/O CMOS 3.3V compatible GPIO 02
GPIO 4 38 I/O CMOS 3.3V compatible GPIO 03
GPIO 5 40 I/O CMOS 3.3V compatible GPIO 04
GPIO 6 42 I/O CMOS 3.3V compatible GPIO 05
GPIO 7 44 I/O CMOS 3.3V compatible GPIO 06
KEYIN2/ON 46 I/O CMOS 3.3V compatible
Power on
button/GPIO 07
GPIO 8 48 I/O CMOS 3.3V compatible GPIO 08
6.7 Real Time Clock
Real Time Clock (RTC) is integrated within the module and is implemented with a quartz crystal of 32 KHz and an E-GOLDlite internal oscillator.
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The RTC time and alarm settings are retained also with battery removed; the system uses a capacitor based system with a backup time of 20 sec.
6.8 SW interfaces
The AT-command interface provides the service and the functionalities of GSM/GPRS modem. It is possible observe the AT commands of 3-2000733 module in the following table.
Name Command description
General Commands
+CGMI Manufacturer identification
+CGMM Request model identification
+CGMR Request revision identification
+CGSN Request product serial number identification +CSCS Set TE character set
+CIMI Request international mobile subscriber identification
+CCID Card identification
+GCAP Request complete capability list
A/ Repeat last command
Mobile equipment control and status commands
+CPAS Phone activity status
+CPWROFF Switch off the MS
+CFUN Set phone functionality
+CBC Battery charge
+CIND Indicator control
+CMER Mobile termination event reporting
+CCLK Clock +CALA Alarm
+CRSM Restricted SIM access
+CALM Alert sound mode
+CRSL Ringer sound level +CLVL Loudspeaker volume level
+CMUT Mute control
+CCWE Call meter maximum event
+CSGT Set greeting text
+CALD Delete alarm +CTZU Automatic Time Zone Update +CTZR Time Zone Reporting
+CLAC List all available AT commands
+CMEE Report mobile termination error
Call control commands
+CSTA Select type of address
D Dial command (full support of modifiers: ;,>,I,G) T Select tone dialing P Select pulse dialing
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Name Command description
A Call answer H Hook control
M Monitor speaker mode
L Monitor speaker loudness
+CMOD Call mode
+CHUP Hang up call
+CEER Extended error report
+VTD Tone duration
+VTS DTMF and tone generation
DL Redial last telephone number S0 Automatic answer
Network service commands
+CNUM Subscriber number
+CSQ Signal quality +COPS Operator selection +CREG Network registration
+CPOL Preferred operator list
+COPN Read operator names
Security commands
+CPIN Enter PIN
+CLCK Facility lock
+CPWD Change password
Phonebook commands
+CPBS Select phonebook memory storage
+CPBR Read phonebook entries
+CPBF Find phonebook entries
+CPBW Write phonebook entry
Short message commands
+CSMS Select message service +CPMS Preferred message storage
+CMGF Preferred message format
+CSAS Save settings +CRES Restore settings +CSDH Show text mode parameters
+CNMI New message indication
+CMGR Read message +CNMA New message acknowledgement to ME/TA
+CMGL List message
+CMGS Send message
+CMGW Write message to memory
+CMSS Send message from storage +CSMP Set text mode parameters
+CMGD Delete SMS
P.n.: 3-2000733
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GSM/GPRS Data Module
Name Command description
+CSCA Service center address +CSCB Select cell broadcast message types
Supplementary services commands
+CCFC Call forwarding
+CCWA Call waiting
+CLIR Calling line identification restriction +CLIP Calling line identification presentation
+COLP Connected line identification presentation +COLR Connected line identification restriction +CAOC Advise of charge
+CACM Accumulated call meter +CAMM Accumulated call meter maximum
+CPUC Price per unit and currency table
+CHLD Call related supplementary services
+CTFR Call deflection
+CLCC List current list calls
+CSSN Supplementary service notifications +CUSD Unstructured supplementary service data
+CCUG Closed user group
+CNAP Calling name presentation
Data commands
+CBST Select bearer service type
+FCLASS Service class selection and identification
+CR Service reporting control
+CRC Cellular result codes
+CRLP Radio link protocol
FAX class 2.0 commands
+FDT Transmit data
+FDR Receive data
+FIP Initialize facsimile parameters
+FKS Session termination
+FK Session termination +FAA Adaptive answer
+FAP Address & polling capabilities +FBS Buffer size
+FBO Data bit order
+FBU HDLC frame reporting +FCC DS capabilities parameters +FCQ Copy quality checking
+FCR Capability to receive data
+FCS Current session results +FCT DTE phase C response timeout
+FEA Phase C received EOL alignment
P.n.: 3-2000733
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Name Command description
+FFC Format conversion +FHS Call termination status
+FIE Procedure interrupt enable
+FIS Current session parameters +FIT Inactivity timeout +FLI Local ID string
+FLO Set flow control +FLP Indicate document to poll
+FMI Request manufacturer identification
+FMM Request model identification +FMR Request revision identification
+FMS Minimum phase C speed
+FNR Negotiation reporting
+FNS Non-standard frame FIF octet string
+FND NSF message data indication
+FPA Selective polling address
+FPI Local polling ID string
+FPP Packet protocol control +FPS Page status
+FPW Password parameter
+FRQ Receive quality thresholds
+FRY Error correction mode retry count +FSA Sub Address parameter
+FSP Request to poll
V.24 control and V.25ter commands
Z Reset to default configuration &F Set to factory defined configuration
&C Circuit 109 (CD) behavior &D Circuit 108/2 (DTR) behavior &S DSR override
&K Flow control
&W Store current configuration
&V Display current configuration
&Y Designate a default reset profile
I Request identification information
+GMI Request manufacturer identification
+GMM Request model identification
+GSN Request product serial number identification
+GMR Request revision identification
+ICF DTE-DCE character framing +IFC DTE-DCE local flow control
\Q Set flow control
+IPR Fixed DTE rate
O Return to on-line data state
P.n.: 3-2000733
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Name Command description
S2 Escape character S3 Command line termination character S4 Response formatting character
S5 Command line editing character S6 Pause before blind dialing S7 Connection completion timeout
S8 Command dial modifier time
S10 Automatic disconnect delay S12 Escape prompt delay (EPD)
E Command echo Q Result code suppression V DCE response format
X Result code selection and call progress monitoring control
Specific AT commands
# Production test command
+CGED GPRS cell environment description
+TRACE Switch on/off trace
+XBANDSEL Select band
+XCALLSTAT Set reporting call status
+XGENDATA Display generation and SW version
+XGCNTRD Read counters of sent or received GPRS data
+XGCNTSET Set/reset counter of sent or received GPRS data
+XHANDSFREE Set hands free mode
+XL1SET Call the L1-specific function
+XSIO Configuration trace and modem (AT) interfaces
SIM toolkit
+STKPRO SIM-APPL-TK proactive commands
+STKTR SIM-APPL-TK terminal response
+STKENV SIM-APPL-TK envelope
+STKPROF SIM-APPL-TK terminal profile
+STKCC SIM-APPL-TK call control commands
+STKCNF SIM-APPL-TK proactive session status
GPRS AT commands
+CGDCONT Define PDP context
+CGEREP GPRS event reporting
+CGQREQ Quality of service profile (requested)
+CGQMIN Quality of service profile (minimum acceptable)
+CGATT GPRS attach or detach
+CGACT PDP context activate or deactivate
+CGDATA Enter data state
+CGAUTO Automatic response to a network request for PDP context activation
+CGPADDR Show PDP address
+CGCLASS GPRS mobile station class
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GSM/GPRS Data Module
Name Command description
+CGREG GPRS network registration status +CGSMS Select service for MO SMS messages
P.n.: 3-2000733
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GSM/GPRS Data Module
P.n.: 3-2000733
6.9 Audio interface
6.9.1 Audio codecs
The following speech codecs are supported in firmware on the DSP:
• GSM Half Rate (TCH/HS);
• GSM Full Rate (TCH/FS);
• GSM Enhanced Full Rate (TCH/EFR);
• 3GPP Adaptive Multi Rate (AMR) (TCH/AFS+TCH/AHS).
6.9.2 Echo canceller/Noise Reduction
For better handling of speech calls and audio functionalities, the product supports algorithms for echo cancellation, noise suppression and automatic gain control.
6.9.3 DAI Mode
For certification testing of audio and vocoder functions the mobile phone has to be connected to the system simulator. The Digital Audio Interface between the system simulator and the MS is supported as described in GSM
04.14 specifications. Supported modalities are:
• Normal mode;
• Vocoder test;
• Acoustic test;
• Voiceband test.
The table below shows the PIN number related to the DAI signals.
Name PIN # I/O Type Description
CLK0_DAI 31 I/O CMOS 3.3V compatible DAI clock
RXD_DAI 33 I CMOS 3.3V compatible DAI receive
TXD_DAI 35 O CMOS 3.3V compatible DAI Transmit
WA0_DAI 37 I/O CMOS 3.3V compatible DAI Reset
6.9.4 Audio devices
Handset
A standard handset is supported for normal handset operation on the default audio path.
Headset
Two earpiece headsets are supported and may be used for voice during calls. The audio path switching from handset to headset and back is automatic when the headset jack is inserted or removed. In headset mode uplink audio path is switched to the headset microphone and headset button works for call accept/release.
Microphone
The uplink path can be switched between the handset and the headset microphone. The path switching is driven automatically by the headset jack. The uplink path can be muted.
Hands-free
A true hands-free functionality is implemented using high power loudspeaker, MS microphone and appropriate DSP algorithms for voice band handling (Echo canceller and Automatic Gain control). The product is equipped with a power audio amplifier that can drive an external 8 ohm speaker with 400mW peak.
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GSM/GPRS Data Module
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The audio power amplifier can be used as a voice amplifier for the handsfree functionality and as a melody player amplifier for ringer functionality. The melody player could be the Midi synthesizer or the tone generator. In order to minimize the clipping of the audio signal, the polarization voltage can be adapted to the voltage supply (battery voltage). The audio signal on the loudspeaker is a mono signal.
6.9.5 Circuit Description
The output signal of EPP1/EPN1 is amplified by the built-in Audio amplifier of E-POWERlite, and then applied to the Molex Connector:
Image 17: Linking between E-GOLDlite and connector for audio interface
The table below shows the PIN number related to the analog audio signals.
Name PIN # I/O I/O type Description
MICP1 41 I Analog Handset microphone reference
MICN1 43 I Analog Handset microphone bias
EPPA1B 45 O Analog Balanced audio out
EPPA2A 47 O Analog Balanced audio out
MICP2 49 I Analog Handset microphone reference
MICN2 51 I Analog Handset microphone bias
AUOP 53 O Analog Balanced power audio out
AUON 55 O Analog Balanced power audio out
6.9.6 Polyphonic ringer
Polyphonic ring-tones can be generated by an internal MIDI synthesizer, which runs at 16 or 32 KHz sample frequency and can sum up to 40 voices at 16 kHz sampling rate.
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GSM/GPRS Data Module
P.n.: 3-2000733
The synthesizer output is only mono and cannot be mixed with TCH voice path (the two are mutually exclusive). To perform in-band alerting during TCH with voice path open, only Tone Generator can be used. The output samples of the synthesizer are post processed by two modules:
• High Frequency Shelving Filter: This module is implemented as a first order IIR Filter, which is mainly used for high frequency boost in audio signals. Its transfer function can be controlled by 4 filter coefficients.
• Audio Compressor: The audio compressor is a device for manipulating the dynamic range of mono or stereo audio signals. The audio compressor can be controlled by 14 configuration parameters.
Polyphonic standard format supported. The MIDI driver can play:
• MIDI files conforming to:
o General Midi Level 1.0 with file-format 0 and 1; o General Midi Lite 1.0.
• SPMidi (Scalable Polyphony MIDI) files conforming to:
o SPMidi 1.0.
• iMelody files conforming to:
o iMelody v.1.2 specifications.
6.10 ADC interface / Measurement interface
2 inputs for Analog-to-Digital Converter are supported. The resolution of these converters is of 12-bit with a range of 0-2.5 Volt.
Name PIN # I/O I/O type Description
ADC1 57 I ADC 12bits 0-2.5V Analog to Digital Converter
ADC2 59 I ADC 12bits 0-2.5V Analog to Digital Converter
6.11 SPI
The SPI bus includes a clock signal, and two signals for the transmissions of the master and the slave.
Name PIN # I/O I/O type Description
MRST0/GPIO 21 I/O CMOS 3.3V compatible Master Receive Slave Transmit
MTSR0/GPIO 23 I/O CMOS 3.3V compatible Master Transmit Slave Receive
SCLK0/GPIO 25 I/O CMOS 3.3V compatible Shift Clock
6.12 I2C bus interface
The I2C bus interface includes a serial clock and a serial data line.
Name PIN # I/O I/O type Description
SCL/GPIO 27 O CMOS 3.3V compatible Serial Clock Line
SDA/GPIO 29 I/O CMOS 3.3V compatible Serial Data Line
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