Motorola Mobility T56DB2 Dual Band GSM Development Module User Manual g20 Cellular Engine Module Description

Motorola Mobility LLC Dual Band GSM Development Module g20 Cellular Engine Module Description

Exhibit 8 Users Manual

Developer’s Guide98-08901C66-O© Motorola Communications Ltd., 2003A subsidiary of Motorola Inc.All rights reserved.g20 Cellular EngineModule DescriptionDRAFT 1 (31.3.03)
Developer’s Guide98-08901C67-O© Motorola Communications Ltd., 2003A subsidiary of Motorola Inc.All rights reserved.g20 Developer’s KitDRAFT 1 (31.3.03)
REVISION HISTORYRevision Date PurposeDRAFT 1 (31.3.03)
March 2003© Motorola Inc., 2003 98-08901C67-Og20Developer’s KitCONTENTS REVISION HISTORY ................................................................................................................................................................iiPREFACE1.1 SCOPE OF THIS MANUAL .................................................................................................................................................11.2 WHO SHOULD USE THIS MANUAL.................................................................................................................................11.3 DISCLAIMER ........................................................................................................................................................................11.4 REGULATORY REQUIREMENTS .....................................................................................................................................11.5 REGULATORY STATEMENT.............................................................................................................................................11.6 SAFETY .................................................................................................................................................................................21.6.1 User Operation ............................................................................................................................................................21.6.2 Antenna Installation ....................................................................................................................................................21.7 APPLICABLE DOCUMENTS ..............................................................................................................................................21.8 HOW THIS MANUAL IS ORGANIZED..............................................................................................................................2INTRODUCTION2.1 GENERAL DESCRIPTION...................................................................................................................................................32.2 TERMS AND ABBREVIATIONS ........................................................................................................................................32.3 SAFETY PRECAUTIONS.....................................................................................................................................................3DEVELOPER BOARD AND INTERFACES DESCRIPTION3.1 GENERAL..............................................................................................................................................................................53.1.1 Developer Board Features...........................................................................................................................................63.1.2 Developer Board Connectivity....................................................................................................................................73.1.3 Quick Start...................................................................................................................................................................83.2 COMMUNICATIONS INTERFACES ................................................................................................................................103.2.1 RS232........................................................................................................................................................................103.2.2 USB ...........................................................................................................................................................................113.2.3 SPI .............................................................................................................................................................................113.3 CONNECTORS DESCRIPTION.........................................................................................................................................123.3.1 UUT Interface Connector..........................................................................................................................................133.4 POWER CONNECTIONS ...................................................................................................................................................153.4.1 DC Power Source Operation .....................................................................................................................................15DRAFT 1 (31.3.03)
iv 98-08901C67-O3.4.2 AC Adapter Operation.............................................................................................................................................. 163.4.3 Battery Operation ..................................................................................................................................................... 163.4.4 Power Source Selection ............................................................................................................................................ 163.5 SWITCHES AND JUMPERS.............................................................................................................................................. 173.6 LED INDICATORS............................................................................................................................................................. 183.7 MMI ..................................................................................................................................................................................... 193.7.1 Display...................................................................................................................................................................... 193.7.2 Keypad...................................................................................................................................................................... 203.8 AUDIO INTERFACE .......................................................................................................................................................... 213.8.1 Speaker ..................................................................................................................................................................... 213.8.2 Microphone............................................................................................................................................................... 213.8.3 Audio Source Selection ............................................................................................................................................ 213.8.4 Headset ..................................................................................................................................................................... 223.8.5 Alert Speaker ............................................................................................................................................................ 233.9 DEVELOPER BOARD PERIPHERALS ............................................................................................................................ 233.9.1 SIM Card .................................................................................................................................................................. 233.9.2 Entertainment Mute .................................................................................................................................................. 243.9.3 LEDs Logic and Control........................................................................................................................................... 243.9.4 ADC Test Logic........................................................................................................................................................ 243.9.5 Ignition...................................................................................................................................................................... 253.9.6 Wakeup..................................................................................................................................................................... 253.9.7 AC Adapter Detection Circuit .................................................................................................................................. 253.10 ANTENNA CONFIGURATION....................................................................................................................................... 253.11 TEST POINTS ................................................................................................................................................................... 263.12 ELECTRICAL SPECIFICATIONS................................................................................................................................... 26MECHANICAL DESCRIPTION4.1 MECHANICAL REQUIREMENTS FOR MOUNTING THE G20 MODULE ................................................................. 27SERVICE SUPPORT5.1 WEB PAGES ....................................................................................................................................................................... 295.2 CUSTOMER ASSISTANCE............................................................................................................................................... 29SCHEMATICS, PLACEMENT AND PARTS LIST6.1 SCHEMATICS..................................................................................................................................................................... 316.2 DEVELOPERS BOARD PLACEMENT ............................................................................................................................ 416.3 DEVELOPER BOARD PARTS LIST................................................................................................................................. 43ERRATA7.1 SWITCH ASSIGNMENTS CORRECTION ....................................................................................................................... 49INDEXDRAFT 1 (31.3.03)
98-08901C67-O vLIST OF FIGURESFigure 1. Developer Board with Accessories ...............................................................................................................................5Figure 2. Developer Board Components ......................................................................................................................................7Figure 3. Mounting the g20 Module.............................................................................................................................................8Figure 4. Attaching the RF Cable .................................................................................................................................................8Figure 5. ADC Test Logic ..........................................................................................................................................................25Figure 6. Mechanical Mounting Requirements ..........................................................................................................................27Figure 7. .....................................................................................................................................................................................32Figure 8. .....................................................................................................................................................................................33Figure 9. .....................................................................................................................................................................................34Figure 10. ...................................................................................................................................................................................35Figure 11. ...................................................................................................................................................................................36Figure 12. ...................................................................................................................................................................................37Figure 13. ...................................................................................................................................................................................38Figure 14. ...................................................................................................................................................................................39Figure 15. ...................................................................................................................................................................................40Figure 16. Developer Board Top Layout....................................................................................................................................41Figure 17. Developer Board Bottom Layout ..............................................................................................................................42Figure 18. S100 Options Switch Functions ................................................................................................................................49DRAFT 1 (31.3.03)
vi 98-08901C67-OLIST OF TABLESTable 1. Terms and Abbreviations ............................................................................................................................................... 3Table 2. RS232-1 Connector Pinout (J350) ............................................................................................................................... 10Table 3. USB Connector Pinout (J3).......................................................................................................................................... 11Table 4. USB Selection (P300 Jumper) ..................................................................................................................................... 11Table 5. RS232-2 Connector Pinout (J500) ............................................................................................................................... 12Table 6. Connectors.................................................................................................................................................................... 12Table 7. g20 Connectors Pinout ................................................................................................................................................. 13Table 8. J230 Connector Pinout ................................................................................................................................................. 16Table 9. P600 Connector Pinout ................................................................................................................................................ 16Table 10. Power Source (P202 Jumper)..................................................................................................................................... 16Table 11. Switches and Jumpers ................................................................................................................................................ 17Table 12. LED Indicators ........................................................................................................................................................... 18Table 13. Display Connector Pinouts (DS800).......................................................................................................................... 19Table 14. Keypad Functions...................................................................................................................................................... 20Table 15. Speaker Connector Pinout (J430)............................................................................................................................... 21Table 16. Microphone Connector Pinout (J460)........................................................................................................................ 21Table 17. Audio Source (P420 Jumper) ..................................................................................................................................... 22Table 18. Headset Connector Pinout (J440)............................................................................................................................... 22Table 19. Alert Transducer Pinout (LS400)............................................................................................................................... 23Table 20. SIM Connector Pinouts (J100)................................................................................................................................... 23Table 21. SIM Detection Logic (P110 Jumper) ......................................................................................................................... 24Table 22. Test Points.................................................................................................................................................................. 26Table 23. Electrical Specifications............................................................................................................................................. 26Table 24. Developer Board Parts List ........................................................................................................................................ 43DRAFT 1 (31.3.03)
98-08901C64-O 11. PREFACE1.1 SCOPE OF THIS MANUALThis manual introduces the g20 Developer's Kit, and describes the technical details required by the data terminal equipment(DTE) team to successfully integrate the Motorola g20 cellular engine into an original equipment manufacturer (OEM) wirelesshost device. With the help of this manual, the DTE team can use the Developer's Kit to conduct a full series of test and evaluationprocedures on the g20, as well as perform application development.We at Motorola want to make this guide as helpful as possible. Keep us informed of your comments and suggestions forimprovements. You can reach us by email: GSM support-BSH015@email.mot.com.1.2 WHO SHOULD USE THIS MANUALThis manual is intended for all members of the DTE OEM integration team who will use the g20 Developer’s Kit, includingrepresentatives from hardware, software and RF engineering disciplines.1.3 DISCLAIMERThis guide provides advice and guidelines to OEM teams. Responsibility regarding how the information is used lies entirelywith the OEM. Statements indicating support provided by, or offered by, Motorola are subject to change at any time.Motorola reserves the right to make any changes to this manual.1.4 REGULATORY REQUIREMENTSThe Federal Communications Commission (FCC) requires application for certification of digital devices in accordance withCFR Title 47, Part 2 and Part 15. This includes Electromagnetic Energy Exposure (EME) testing. As the g20 modem is not astandalone transceiver but is an integrated module, the g20 cannot be tested by itself for EME certification. It is, however, theintegrator’s responsibility to have the completed device tested for EME certification. 1.5 REGULATORY STATEMENTThe following safety precautions must be observed during all phases of the operation, usage, service or repair of any cellularterminal or mobile incorporating the g20 module. Manufacturers of the cellular terminal are advised to convey the followingsafety information to users and operating personnel, and to incorporate these guidelines into all manuals supplied with the prod-uct. Failure to comply with these precautions violates safety standards of design, manufacture and intended use of the product.Motorola assumes no liability for customer failure to comply with these precautions.1. The g20 must be operated at the voltages described in the technical documentation.2. The g20 must not be mechanically nor electrically changed. Use of connectors should follow the guidance of the technicaldocumentation.3. The g20 is designed the meet the EMC requirements of ETS 300 342.DRAFT 1 (31.3.03)
Preface2 98-08901C64-O4. When integrating the g20 into a system, Motorola recommends testing the system to ETS300342-1.5. The g20 meets the safety requirements of EN60950.6. Systems using the g20 are subject to mandatory EMC testing under directive 89/336/EEC (see item 3 above). Otherdirectives, such as the LVD directive 73/23/EE, may also apply to a system using the g20 module.1.6 SAFETY1.6.1 User OperationDo not operate your telephone when a person is within eight inches (20 centimeters) of the antenna. A person or object withineight inches (20 centimeters) of the antenna could impair call quality and may cause the phone to operate at a higher power levelthan necessary, as well as expose that person to RF energy in excess of that established by the FCC RF Exposure Guidelines.IMPORTANT: The telephone must be installed in a manner that provides a minimum separation distance of 20 cm or morebetween the antenna and persons in order to satisfy FCC RF exposure requirements for mobile transmitting devices.IMPORTANT: To comply with the FCC RF exposure limits and satisfy the categorical exclusion requirements for mobiletransmitters, the requirements described in the section that follows must be met.1.6.2 Antenna Installation• A minimum separation distance of 20 cm must be maintained between the antenna and all persons.• The effective radiated power of the transmitter must be less than 1.5 Watts ERP (2.45 Watts or 33.9 dBm EIRP). This requiresthat the combination of antenna gain and feed line loss does not exceed 11 dBi.1.7 APPLICABLE DOCUMENTSg20 Cellular Engine Module Description: 9808901C66-Og20 AT Commands: 9808901C68-O1.8 HOW THIS MANUAL IS ORGANIZEDThis manual contains the following chapters:•Chapter 1 contains this Preface.•Chapter 2 introduces the g20 Developer’s Kit and provides important safety instructions.•Chapter 3 describes the Developer Board and its components in detail, including connectors, jumpers, DIP switches andLED indicators. It also includes a set of Quick Start procedures for first-time use.•Chapter 4 provides a mechanical description of the Developer Board.•Chapter 5 provides contact information for Motorola Service Support and Customer Assistance.•Chapter 6 includes schematic diagrams of the g20 Developer’s Kit as well as a complete parts list.• Errata provides a correction to the Developer Board.DRAFT 1 (31.3.03)
98-08901C64-O 32. INTRODUCTION2.1 GENERAL DESCRIPTIONThe g20 Developer’s Kit is intended for evaluating the g20 module, as well as for developing and testing software applicationsfor it. 2.2 TERMS AND ABBREVIATIONSThis section provides definitions for terms and acronyms used in this document. 2.3 SAFETY PRECAUTIONSMost Developer Board circuits are not shielded. Be sure to take appropriate precautionary measures in order to avoid ESD whilehandling the kit. ESD can damage the Developer Board and/or the g20 module attached to it.Table 1. Terms and AbbreviationsAcronym/Term Definition/DescriptionADC Analog to Digital ConverterCMOS Complementary Metal Oxide SemiconductorCODEC Coder-DecoderDTE Data Terminal Equipment (such as terminals, PCs and so on)GPRS General Packet Radio ServiceGSM Global System for Mobile CommunicationsIGN WHAT DOES THIS STAND FOR?IRQ Interrupt RequestLED Light-Emitting DiodeMMCX Multimedia Communications ExchangePCM Pulse Code ModulationRF Radio FrequencySIM Subscriber Identity ModuleSPI Serial Peripheral InterfaceUART Universal Asynchronous Receiver TransmitterUSB Universal Serial BusUUT Unit Under TestDRAFT 1 (31.3.03)
Introduction4 98-08901C64-ODRAFT 1 (31.3.03)
98-08901C64-O 53. DEVELOPER BOARD ANDINTERFACES DESCRIPTION3.1 GENERALThe g20 Developer Board is designed to support the hardware and software development and validation of the g20 GSM/GPRSdata module. The Developer Board provides a peripheral platform to operate the g20 as a standalone product, and to easilyaccess the g20 interface connector signals.The Developer Board has the following functions:• Serves as a mounting platform for the g20 module• Supplies the g20 module with supply voltage• Provides standard communication interfaces (USB and RS232)Kit Number: FTN8121ABoard Number: 8487653U01Revision: P3Figure 1 shows the Developer Board and some of its accessories with the g20 module attached to it: PLEASE PROVIDEGRAPHIC.Figure 1. Developer Board with AccessoriesDRAFT 1 (31.3.03)
Developer Board and Interfaces Description6 98-08901C64-O3.1.1 Developer Board FeaturesThe Developer Board provides the following features to facilitate software and hardware development:• Output of all g20 connector signals to a large header connector for debugging• Host-systems connector• AC, battery and DC power supplies for board operation• LED indicators for critical signals• Display and keypad for phone operation• USB and RS232 serial interfaces• Secondary RS232 interface using the SPI bus• Digital audio interface• Analog audio interface for speaker, alert speaker, microphone and headset• SIM card connector• Switches and jumpers for controlling board operationDRAFT 1 (31.3.03)
98-08901C64-O 7Developer Board and Interfaces Description3.1.2 Developer Board ConnectivityFigure 2 shows the Developer Board and its components:Figure 2. Developer Board ComponentsDRAFT 1 (31.3.03)
Developer Board and Interfaces Description8 98-08901C64-O3.1.3 Quick StartThis section describes a series of Quick Start procedures for first-time use of the Developer Board.3.1.3.1 g20 ConnectionOpen the top cover of the Developer Board and insert the g20 in its designated position. The g20 should connect to the 70-pinconnector, labeled UUT (P1), and its holes should be aligned with the spacers on the Developer Board. Fasten the g20 to the Developer Board spacers using two M2x0.4x6 mm screws provided with the kit. PLEASE PROVIDEGRAPHIC.Figure 3. Mounting the g20 Module3.1.3.2 Antenna ConnectionConnect the on-board antenna cable to the g20 antenna connector. Connect the RF Out output to the Internal antenna input usingthe supplied cable. PLEASE PROVIDE GRAPHIC. Figure 4. Attaching the RF CableNoteWhile working, you can keep the box closed.DRAFT 1 (31.3.03)
98-08901C64-O 9Developer Board and Interfaces Description3.1.3.3 Power ConnectionThe Developer Board can be powered using either a wall-mounted adapter, a DC power supply or a battery cell.Connect the adapter to the wall outlet and to the Developer Board adapter connector (J230) labeled Adapter.3.1.3.4 Serial ConnectionThe USB and RS232 serial interfaces are available for PC communications. If a PC connection is required, connect either anRS232 cable with a male D-Type connector to the labeled UART1 connector, or a USB cable with a B-Type connector to thelabeled USB connector.3.1.3.5 Audio ConnectionThe Developer Board has several available audio configurations: • Hands-free audio using the speaker and microphone• Digital PCM audio• Personal headset audioConnect the supplied headset to the headset connector (J440) labeled Headset.3.1.3.6 SIM Card ConnectionInsert a SIM card into the SIM tray (J100).3.1.3.7 Default Switches and Jumper SettingsThe Developer Board jumpers and switches are initially configured to comply with this Quick Start operation mode. If differentsettings are necessary, refer to the relevant section for details about the required switch or jumper settings.3.1.3.8 Operating the g20After completing the initial setup, turn on the Developer Board power by switching the power switch (S200) to its on position,and turn on the g20 by depressing the on/off switch (S110) or by depressing the on/off button on the keypad.NoteOnly the adapter option is covered in this section. See “Power Connections” on page 15., when using other powermethods.NoteThe power source selection jumper, labeled Source, must be in the correct position for adapter operation (pins 1-2shorted).NoteWhen using a USB interface, be sure the USB jumper (P300) position reflects the g20 version being used. See“USB” on page 11..NoteOnly the headset audio option is covered in this section. See “Audio Interface” on page 21. when using other audiooptions.NoteWhen using a SIM card, be sure the SIM jumper (P110) position reflects the g20 version being used. See “SIMCard” on page 23. for more details.DRAFT 1 (31.3.03)
Developer Board and Interfaces Description10 98-08901C64-O3.2 COMMUNICATIONS INTERFACESThe g20 Developer Board includes three different serial interfaces: •RS232•USB• SPIThe RS232 and USB ports are multiplexed within the g20, and therefore cannot be operated simultaneously. Their defaultconnection is RS232. The SPI interface is used for debugging.Each of these serial interfaces is described in the sections that follow.3.2.1 RS232The RS232 serial port is the primary interface to the g20 UUT via the J350 connector. This port is denoted by the RS232-1marking beside the 9-pin, D-type connector. The UUT RS232 signals are active-low CMOS-level signals (0-2.7 V), which are converted by the Developer Board to standardRS232 levels for PC communications.Table 2. RS232-1 Connector Pinout (J350)Pin # Description DTE I/O1 DCD In2RXD In3TXD Out4DTR Out5 Ground6DSR In7RTS Out8CTS In9RI InNoteThe RS232 connector pin names are DTE-oriented.DRAFT 1 (31.3.03)
98-08901C64-O 11Developer Board and Interfaces Description3.2.2 USBThe USB interface operates according to the g20 UUT configuration. The Developer Board has a complete USB transceivercircuit to support USB communications for g20 units that do not include a USB driver of their own. The Developer Board USBinterface can be overridden manually when using a g20 unit that does include its own USB driver interface.The USB jumper (P300) located next to the USB connector selects between the Developer Board USB interface and the UUTUSB interface. By changing the jumper position, the USB_VBUS signal is diverted to the selected driver (in the g20 or on theDeveloper Board) and operates it.3.2.3 SPIThe Developer Board includes a secondary 4-wire RS232 interface, which is connected to the g20 internal SPI bus through theJ500 connector. This interface is used to debug applications. This port is denoted by the RS232-2 label next to the 9-pin D-typeconnector.Table 3. USB Connector Pinout (J3)Pin # Description1VCC2D-3D+4GroundTable 4. USB Selection (P300 Jumper)P300 Jumper PositionSelected Mode USB Source12 3•• g20 g20 driver••EVB (Developer Board) EVB driverUSB disconnectedDRAFT 1 (31.3.03)
Developer Board and Interfaces Description12 98-08901C64-OOn the Developer Board, the g20 SPI interface is converted to standard RS232 signals for PC communications. The conversionprocess uses the RS232 interface as a second slave on the internal g20 SPI bus, and communicates with it as such. SPI read andwrite operations are performed normally, using the CS and IRQ signals provided by the conversion circuit. The IRQ signal isconnected to a g20 IRQ pin.3.3 CONNECTORS DESCRIPTIONAll the Developer Board connectors are marked by their reference number and by a pin-1 indicator. Table 6 describes the avail-able connectors on the Developer Board. NoteThe RS232 connector pin names are DTE-oriented.Table 5. RS232-2 Connector Pinout (J500)Pin # Description DTE I/O1Unused2RXD In3TXD Out4Unused5 Ground6Unused7RTS Out8CTS In9UnusedTable 6. ConnectorsReference Connector DescriptionP1 g20 UUT g20 UUT (unit under test) connectorJ1 Host Emulates the g20 connector for host systemsP100 Diagnostics Debug header connector (70-pin)J300 USB USB B-type connectorJ350 RS232-1 Primary RS232 to PCJ500 RS232-2 Secondary RS232 for debugging (SPI)DRAFT 1 (31.3.03)
98-08901C64-O 13Developer Board and Interfaces Description3.3.1 UUT Interface ConnectorTable 7 lists the pin names and functions available for g20 interface connectors. All pin numbers and functions are identical forthe P1, J1 and P100 connectors on the Developer Board.J430 Speaker Hands-free system speaker jackJ460 Microphone Hands-free system microphone jackJ440 Headset Headset jackJ201 VCC Developer Board DC power supplyJ200 GND Developer Board common groundP600 Battery Battery connectorJ230 AC adapter/charger Wall-mount adapter connector (CE bus compatible)J100 SIM card SIM card socket with detectionP2 Antenna connector SMA connector for g20 antennaM1 RF Antenna RF antennaDS800 Display Display padsTable 7. g20 Connectors PinoutPin # Pin Name Pin # Pin Name1 GND 2 GND3 GND 4 GND5 VCC 6 VCC7 VCC 8 VCC9 RTS_N 10 USB_DET11 RXD_N 12 Not connected13 DSR_N 14 Not connected15 CTS_N 16 WAKEUP_IN_NTable 6. Connectors (Continued)Reference Connector DescriptionDRAFT 1 (31.3.03)
Developer Board and Interfaces Description14 98-08901C64-O17 DCD_N 18 PCM_DIN19 DTR_N 20 PCM_DOUT21 TXD_N 22 PCM_CLK23 RI_N 24 PCM_FS25 RESET_N 26 WAKEUP_OUT_N27 BL_SINK 28 KBC1_N29 CHRG_DIS 30 KBC0_N31 CHRG_SW 32 KBR0_N33 CHRG_STATE 34 KBR1_N35 CHRG_DET_N 36 KBR2_N37 ENT_MUTE 38 KBR3_N39 TX_EN_N 40 KBR4_N41 ANT_DET 42 KBR5_N43 VIB_OUT 44 SIM_RST_N45 CHRG_TYP 46 SIM_CLK47 THERM 48 SIM_VCC49 GPRS_DET_N 50 SIM_PD51 IGN 52 SIM_DIO53 ON_OFF_N 54 LCD_CS55 HDST_INT_N 56 LCD_DATA57 HDST_MIC 58 LCD_CLK59 MIC_GND 60 LCD_RS61 MIC 62 SPI_IRQ_N63 ALRT_N 64 SPI_DINTable 7. g20 Connectors Pinout (Continued)Pin # Pin Name Pin # Pin NameDRAFT 1 (31.3.03)
98-08901C64-O 15Developer Board and Interfaces Description3.4 POWER CONNECTIONSDeveloper Board power can be supplied from a DC power source, an AC power adapter or a battery. The same power source isused for the UUT and the board peripherals.The Developer Board includes three jumpers for controlling the power supply:•P202: AC adapter or battery power source selection•P201: Connects/disconnects the Developer Board peripherals from the power supply•P200: Connects/disconnects the g20 from the power supplyEach power supply option is described in the sections that follow.3.4.1 DC Power Source OperationWhen using a DC power supply, the power source is applied to connectors J201 (VCC) and J200 (Ground). The DC voltageapplied through this connection should not exceed the recommended operational limits of 3V-4.2V. In all cases, the DC sourceinput is protected from over voltage and reverse polarity, and includes a 2.5A protective fuse.The supplied DC input connectors must be attached to the Developer Board in order to use the DC power source. The twoconnectors should be screwed into their appropriate positions (J201, labeled VCC, and J200, labeled GND). Use the red connec-tor for VCC and the black one for GND. Connect the DC power source to these connectors using banana plugs, alligator clampsor wire.65 ALRT_P 66 SPI_CLK67 SPKR_N 68 SPI_DOUT69 SPKR_P 70 SPI_CS!CautionIt is recommended to remove jumper P202 when using the DC power source. In any case, the DC power sourceshould not be used when other sources are connected.Table 7. g20 Connectors Pinout (Continued)Pin # Pin Name Pin # Pin NameDRAFT 1 (31.3.03)
Developer Board and Interfaces Description16 98-08901C64-O3.4.2 AC Adapter OperationWhen using an AC adapter, the adapter is connected to J230. The adapter supplies a constant 4.5 V, which is regulated to anominal 4.1 V on the Developer Board.3.4.3 Battery OperationThe Developer Board supports a battery power supply. The battery used must be a 3.6V lithium-ion cell, corresponding toMotorola part number 0189727L01.When using a battery as the main power source, the AC adapter input operates as a battery charger, which connects to anon-board battery charging circuit.3.4.4 Power Source SelectionThe Developer Board AC adapter and battery power inputs include a selection jumper (P202) that diverts either the regulatedAC adapter power or the battery power to the board.Table 8. J230 Connector PinoutPin # Pin Name1GND2 Detection circuit 3VCCTable 9. P600 Connector PinoutPin # Pin Name1VCC2GNDTable 10. Power Source (P202 Jumper)P202 Jumper Position Selected Mode Power Source12 3•• Adapter AC Adapter••Battery LiIon BatteryAdapter and battery disconnected DC power onlyDRAFT 1 (31.3.03)
98-08901C64-O 17Developer Board and Interfaces Description3.5 SWITCHES AND JUMPERSTable 11 describes the available switches and jumpers on the Developer Board.NoteThe DC power source input is independent of the other power inputs, and does not pass through this selectionjumper. Nevertheless, it is still recommended to disconnect the P202 jumper when using the DC source.Table 11. Switches and JumpersReference Switch/Jumper DescriptionS200 Board on/off Developer Board on/off switchS110 g20 on/off g20 UUT on/off push button switchS100 Options switch Four switches for Developer Board optionsP420 Audio Analog/digital audio-selection jumperP201 EVB Peripheral power input jumperP200 UUT g20 UUT power input jumperP202 Source Power source selection jumperP110 SIM SIM card detect logic selection jumperP300 USB USB driver source selection jumper P130 EMUTE Entertainment mute connection pointDRAFT 1 (31.3.03)
Developer Board and Interfaces Description18 98-08901C64-O3.6 LED INDICATORSTable 12 describes the LED indicators available on the Developer Board. Each LED is marked on the board by the function itrepresents.Table 12. LED IndicatorsGroup LED Reference DescriptionGPIOWAKEUP D704 Wake-up in/outIGN D702 Ignition inputGPRS D710 GPRS coverage indicationSIM D703 SIM card reset indicationUUT D701 g20 reset signalPWR D200 Developer Board power indicatorEMUTE D708 Entertainment mute indicatorSPICS D741 SPI chip-select outputIRQ D745 SPI IRQ inputUSBVCC D760 USB VBUSDATA D761 USB D+RS232-1RXD D722 DTE receive dataTXD D721 DTE transmit dataRTS D724 Request to sendCTS D723 Clear to sendDTR D725 Data terminal readyDSR D726 Data set readyDCD D727 Carrier detectRI D728 Ring indicatorDRAFT 1 (31.3.03)
98-08901C64-O 19Developer Board and Interfaces Description3.7 MMIThe Developer Board includes a man-machine interface (MMI), complete with display and keypad. The signals from the displayand keypad are directly connected to the UUT interface.3.7.1 DisplayThe grayscale display (DS800) is not a standalone component, and includes a complete assembly in which it is housed, alongwith other necessary parts.RS232-2RXD D743 DTE receive dataTXD D742 DTE transmit dataCTS D744 Clear to sendRTS D745 Request to sendTable 13. Display Connector Pinouts (DS800)Pin # Description1Chip select2Reset3 Register select4 Serial clock5 Serial data6 Supply7 Supply8Ground9VoutTable 12. LED Indicators (Continued)Group LED Reference DescriptionDRAFT 1 (31.3.03)
Developer Board and Interfaces Description20 98-08901C64-O3.7.2 KeypadTable 14 describes the Developer Board keypad layout.Table 14. Keypad FunctionsPad Reference Function AlternateS803 1 PunctuationS802 2 ABCS820 3 DEFS801 4 GHIS805 5 JKLS804 6 MNOS806 7 PQRSS817 8 TUVS811 9 WXYZS809 0 +S810 Star (*)S815 Pound (#)S814 SendS813 End On/OffS819 MenuS822 RightS823 LeftS818 UpS816 DownS812 Soft RightS808 Soft LeftDRAFT 1 (31.3.03)
98-08901C64-O 21Developer Board and Interfaces Description3.8 AUDIO INTERFACEThe Developer Board includes analog and digital audio interfaces. The audio interface contains a hands-free speaker and micro-phone, a headset, and an alert speaker.3.8.1 SpeakerThe differential speaker interface is designed as a car-kit hands-free speaker. The Developer Board uses an audio amplifier toamplify the speaker audio output to desired levels. The speaker connector (J430) is labeled SPEAKER. The speaker output is 8ohms matched.3.8.2 MicrophoneThe microphone interface is designed as a car-kit hands-free microphone. The microphone connector (J460) is labeled MIC.3.8.3 Audio Source SelectionMicrophone and speaker audio can be routed through two different sources: the g20 audio amplifiers or the g20 digital audiointerface. The Developer Board includes a CODEC that converts the g20 digital audio data to analog audio signals.Table 15. Speaker Connector Pinout (J430)Pin # Description1 Not connected2 Speaker positive output3 Speaker negative output4 Not connectedTable 16. Microphone Connector Pinout (J460)Pin # Description1Ground2 Microphone audio-in3Ground4Ground5GroundDRAFT 1 (31.3.03)
Developer Board and Interfaces Description22 98-08901C64-OThe P420 jumper selects the speaker and microphone source, as indicated in Table 17.3.8.4 HeadsetThe headset interface is designed as a portable phone audio interface, and is similar to the headset interface. The headset connec-tor (J440) includes a speaker, microphone and a detection signal. The speaker and microphone signals are directly connected tothe g20 audio signals.The purpose of the detection circuit is to switch the g20 headset audio paths on and off, whenever a headset connection isdetected. Headset detection is made whenever a headset plug is inserted into the jack. This action disables the g20 microphoneand speaker, and routes the audio signals to the headset.Table 17. Audio Source (P420 Jumper)P420 Jumper Position Selected Mode Audio Source12 3•• Digital audio CODEC audio I/O••Analog audio G20 audio I/OAudio disconnectedTable 18. Headset Connector Pinout (J440)Pin # Description1 Ground2 Headset-detect switch3 Speaker audio-out4 Microphone audio-in5 GroundDRAFT 1 (31.3.03)
98-08901C64-O 23Developer Board and Interfaces Description3.8.5 Alert SpeakerThe Developer Board includes an on-board transducer for alert audio sounds (LS400), which is labeled ALERT. The transduceris connected directly to the g20 differential alert outputs. The alert transducer is similar to the alert speaker, which sounds theg20 MIDI signals.3.9 DEVELOPER BOARD PERIPHERALSThis section describes the connectors for peripheral devices that can be used with the Developer Board.3.9.1 SIM CardThe SIM card connector (J100) is external to the UUT, but is connected directly to it, similar to an internal SIM. The UUT canaccept 1.8V and 3V SIM cards.Table 19. Alert Transducer Pinout (LS400)Pin # Description1 Alert audio inverted output2 Alert audio positive output3 Alert audio inverted output4 Alert audio inverted outputTable 20. SIM Connector Pinouts (J100)Pin Description1Ground2 Presence detect3Clock4Reset5VCC6 Serial data I/O7 VPP8GroundDRAFT 1 (31.3.03)
Developer Board and Interfaces Description24 98-08901C64-OThe SIM card supports both active-high and active-low detection configurations. Jumper P110 is used to select between theseconfigurations.3.9.2 Entertainment MuteThe Developer Board includes an entertainment-mute logic circuit that is responsible for muting a car radio whenever the phoneis in use (for example, incoming calls, dialing, and so on).The entertainment-mute logic circuit includes an ENABLE input that is both a g20 signal and an open-collector MUTE output.This circuit is connected to jumper P130 for host systems.3.9.3 LEDs Logic and ControlThe Developer Board includes LED indicators for critical signals. A 3.0V regulator powers the LEDs, and an on/off switchcontrols their operation. The switch is located in the S100 switch array, and is labeled LED. Turning the switch on and offenables or disables all LED activity, respectively.The Developer Board power LED and the g20 on/off LED are always active and cannot be disabled.3.9.4 ADC Test LogicThe g20 has two ADC pins. The g20 charger and temperature monitor currently occupy these pins. The Developer Boardincludes optional resistors for ADC testing. These resistors, two for each ADC signal, can be used to set a specific voltage acrossthe ADC signal.Table 21. SIM Detection Logic (P110 Jumper)P110 Jumper Position Selected Mode12 3•• Active-low••Active-highNot activeNoteThe entertainment-mute operation is not currently supported by the g20.DRAFT 1 (31.3.03)
98-08901C64-O 25Developer Board and Interfaces DescriptionThe G20 has a 47K-ohm internal pull-up resistor at each ADC input, as shown in Figure 5.Figure 5. ADC Test Logic3.9.5 IgnitionThe Developer Board contains an on/off switch that is connected to the g20 UUT ignition circuit. The switch is located in theS100 switch array, and is labeled IGN. Turning the switch on applies the UUT supply on the Ignition input pin.3.9.6 WakeupThe Developer Board includes a wakeup switch that toggles the g20 WAKEUP_IN_N signal. The switch is located in the S100switch array, and is labeled WAKEUP. 3.9.7 AC Adapter Detection CircuitThe g20 charger module includes a detection logic circuit for detecting charger presence and type. The detection circuit is inter-nal to the g20 module. However, the Developer Board does contain the necessary routing from the g20 UUT to the AC adapterconnector.Two g20 signals are used for this detection:•AD1: ADC signal for charger type detection•CHRG_SW: Charger rate controlThese detection signals are present to provide compatibility with the phone. They may be removed in future versions.3.10 ANTENNA CONFIGURATIONAn antenna (internal or external) must be connected to the Developer Board for adequate GSM reception. You can connect theg20 to either the on-board internal antenna or to an external antenna. Two RF connectors on the Developer Board, labeled INTANT and EXT ANT, are used for this purpose. The EXT ANT connector has an internal extension cable with MMCX termina-tion, which must be connected to the g20 RF connector. The INT ANT connector is an on-board connection to the DeveloperBoard internal antenna.When using the internal antenna option, the additional RF cable supplied in the Developer’s Kit must be connected between theEXT ANT and INT ANT connectors. When using the external antenna option, an external antenna or antenna application mustbe connected to the EXT OUT connector. (The connection cable is not included.) DRAFT 1 (31.3.03)
Developer Board and Interfaces Description26 98-08901C64-O3.11 TEST POINTSTable 22 describes the available test points on the Developer Board.3.12 ELECTRICAL SPECIFICATIONSTable 23 describes the electrical specifications OF the Developer Board.* Depends on the active peripherals (LEDs, UART, USB, and so on) in use.Table 22. Test PointsReference FunctionTP400 Alert speaker positive signalTP401 Alert speaker inverted signalTable 23. Electrical SpecificationsParameter Min Typ Max UnitsDC power supply 3.0 3.6 4.2 VAdapter power supply 4.4 4.6 12 VBattery power supply 3.0 3.6 4.2 VOff current --- 36 46 uAOn current 8.1 8.33 8.45 mAActive current peripherals off 12.7 13 --- mAActive current peripherals on*13.1 --- 190 mADRAFT 1 (31.3.03)
98-08901C64-O 274. MECHANICAL DESCRIPTION4.1 MECHANICAL REQUIREMENTS FOR MOUNTING THE G20 MODULEThe size of the g20 module is 45.2 x 24.4 x 6 mm. Two 2.4 mmØ holes are provided to accommodate M2 screws or #1-64 UNC2A machine screws. Torque to 2 inches per pound. Refer to Figure 6 below for mounting requirements: Figure 6. Mechanical Mounting RequirementsDRAFT 1 (31.3.03)
Mechanical Description28 98-08901C64-ODRAFT 1 (31.3.03)
98-08901C64-O 295. SERVICE SUPPORT5.1 WEB PAGESPLEASE PROVIDE DETAILS FOR THIS SECTION.5.2 CUSTOMER ASSISTANCEFor customer assistance, contact us as directed below:Helpdesk email: n2cshd@motorola.comHelpdesk telephone: +972-3-568-4040DRAFT 1 (31.3.03)
Service Support30 98-08901C64-ODRAFT 1 (31.3.03)
98-08901C64-O 316. SCHEMATICS, PLACEMENT ANDPARTS LIST6.1 SCHEMATICSThis section presents the schematics for the g20 Developer Board. PLEASE PROVIDE INFORMATION FOR FIGURE CAPTIONS.DRAFT 1 (31.3.03)
Schematics, Placement and Parts List32 98-08901C64-OFigure 7.DRAFT 1 (31.3.03)
98-08901C64-O 33Schematics, Placement and Parts ListFigure 8.DRAFT 1 (31.3.03)
Schematics, Placement and Parts List34 98-08901C64-OFigure 9.DRAFT 1 (31.3.03)
98-08901C64-O 35Schematics, Placement and Parts ListFigure 10.DRAFT 1 (31.3.03)
Schematics, Placement and Parts List36 98-08901C64-OFigure 11.DRAFT 1 (31.3.03)
98-08901C64-O 37Schematics, Placement and Parts ListFigure 12.DRAFT 1 (31.3.03)
Schematics, Placement and Parts List38 98-08901C64-OFigure 13.DRAFT 1 (31.3.03)
98-08901C64-O 39Schematics, Placement and Parts ListFigure 14.DRAFT 1 (31.3.03)
Schematics, Placement and Parts List40 98-08901C64-OFigure 15.DRAFT 1 (31.3.03)
98-08901C64-O 41Schematics, Placement and Parts List6.2 DEVELOPERS BOARD PLACEMENTFigure 16 shows the top layout of the Developer Board: Figure 16. Developer Board Top LayoutDRAFT 1 (31.3.03)
Schematics, Placement and Parts List42 98-08901C64-OFigure 17 shows the bottom layout of the Developer Board: Figure 17. Developer Board Bottom LayoutDRAFT 1 (31.3.03)
98-08901C64-O 43Schematics, Placement and Parts List6.3 DEVELOPER BOARD PARTS LIST Table 24. Developer Board Parts ListREFERENCE SYMBOLMOTOROLA PART NO. DESCRIPTIONResistorsR440 0662057A21 RES, 68R600 0662057A22 RES, 75R330 0662057A25 RES, 100R773 0662057A28 RES, 130R723, R725, R745, R7470662057A31 RES, 180R703 0662057A35 RES, 270R705, R707, R709-10, R713, R717-18, R727, R729, R731, R733, R735, R737, R743, R749, R751, R753, R763, R7640662057A36 RES, 300R203 0662057A39 RES, 390R603 0662057A47 RES, 820R604 0662057A49 RES, 1KR602 0662057A51 RES, 1.2KR312 0662057A53 RES, 1.5KR465-66 0662057A57 RES, 2.2KR201-2, R702, R704, R706, R708, R711-12, R716, R722, R724, R726, R728, R730, R732, R734, R736, R742, R744, R746, R748, R750, R752, R760-61, R8000662057A65 RES, 4.7KR179, R197, R200, R303, R414-16, R441, R508-9, R525, R601, R607, R774, R781 0662057A73 RES, 10KR230-32, R3220662057A75 RES, 12KDRAFT 1 (31.3.03)
Schematics, Placement and Parts List44 98-08901C64-OR411-12, R4180662057A80 RES, 20 KR177-78, R191-92, R196, R198, R317-18, R320-21, R353, R507, R608-9, R7800662057A89 RES, 47 KR435 0662057A97 RES, 100 KR1, R10-11, R15-16, R107, R116-144, R146, R148-49, R151-53, R155, R157, R159, R170, R172-76, R181-190, R300-302, R350-352, R400-402, R407-410, R413, R417, R419, R423-27, R460, R480-85, R500-503, R506, R510-524, R594-97, R606, R611-618, R700, R720, R740, R770-771, R801-8050662057B47 RES, 0R790 0662057C01 RES, 0R430-31, R433-340662057P20 RES, 20KR221 0662057P95 RES, 100KR234 0662057P96 RES, 130KR211, R220, R2410662057P97 RES, 150KR210, R240 0662057P99 RES, 200KR233 0662057T17 RES, 301KR310-11 0662057T43 RES, 33.2R772 0662057W13 RES, 3.3Table 24. Developer Board Parts List (Continued)REFERENCE SYMBOLMOTOROLA PART NO. DESCRIPTIONDRAFT 1 (31.3.03)
98-08901C64-O 45Schematics, Placement and Parts ListFusesF200 0904923K01 FUSEF600 6586221J04 FUSEConnectorsJ430 0909032K01 CONN_JJ460 0909399T09 CONN_JJ350, J500 0909672B03 CONN_JP2 0909908P02 CONN_JJ1 0987547V01 CONN_JJ300 0987583U01 CONN_JJ440 0987837L02 CONN_JJ230 0989601K01 CONN_JCapacitorsC1, C2, C3, C42113740F01 CAP, 0.5pC5 2113740F19 CAP, 4.7pC207, C215, C217, C2342113740F25 CAP, 8.2pC442, C444, C447, C450, C462, C472-4732113740F27 CAP, 10pC100, C102-106, C108-115, C130, C137, C143, C147-151, C153-160, C171, C191-192, C211, C221, C241, C312, C401-404, C416-418, C421-428, C436-439, C443, C445-446, C448-449, C451-2, C461, C463-4, C470-471, C474-475, C502-510, C781, C810-8192113740F39 CAP, 33pTable 24. Developer Board Parts List (Continued)REFERENCE SYMBOLMOTOROLA PART NO. DESCRIPTIONDRAFT 1 (31.3.03)
Schematics, Placement and Parts List46 98-08901C64-OC125, C128, C131, C134, C208, C216, C218, C231, C511-122113740F41 CAP, 39pC411-412, C4142113741F49 CAP, 10nC101, C107, C116-124, C126-127, C129, C132-133, C135-136, C138-142, C144-146, C152, C465, C6002113743E20 CAP, 100nC430-431, C433-4342113743K16 CAP, 220nC361-364, C521-5242113743K17 CAP, 330nC310, C313, C4662113928C04 CAP, 4.7uC440-441 2113928C12 CAP, 10uC170, C172-173, C180, C190, C200, C233, C300, C311, C350, C360, C400, C410, C413, C415, C420, C432, C435, C453, C460, C500, C513, C520, C700, C720, C770-774, C780, C800-8012113928P04 CAP, 1uC230, C232 2311049A57 CAPP, 10uC210, C212, C220, C222, C240, C2422311049A72 CAPP, 10uC201-206 2387572V01 CAPP, 1000uInductorsL440 2409154M42 IDCTR, 33nShieldsSH400 2604044K01 SHIELDTable 24. Developer Board Parts List (Continued)REFERENCE SYMBOLMOTOROLA PART NO. DESCRIPTIONDRAFT 1 (31.3.03)
98-08901C64-O 47Schematics, Placement and Parts ListConnectorsP130 2880001R01 CONN_PP120, P200-2012880001R02 CONN_PP110, P202, P300, P4202880001R03 CONN_PP600 2886290J07 CONN_PP100 2886397J02 CONN_PP1 2887548V01 CONN_PJ201 2987604U01 CONN_JJ200 2987604U02 CONN_JContactsM1 3903920K01 CONTACTSwitchesS200 4008241G06 SWITCH_ET01S110 4008242G05 SWITCHJ100 4009060S03 SWITCH_CONTACT_BLOCKS100 4080564C02 SWITCHSpacersM2, M3, M4, M5, M6, M7, M8, M94302809C15 SPACERLEDsD702-704, D708, D710, D721-8, D741-746, D760-7614805729G44 BR1102WD770-771 4870370A25 CL-260S-WAD200, D701 4880304L02 LED_REDTransistorsQ701-704, Q706, Q708, Q710, Q760-7614809579E16 TN0200TQ705, Q707, Q711, Q721-728, Q741-7464809579E18 TP0101TQ200, Q780 4809807C31 IRF7220Q350, Q720, Q740, Q10004809939C05 UMC5NTLTable 24. Developer Board Parts List (Continued)REFERENCE SYMBOLMOTOROLA PART NO. DESCRIPTIONDRAFT 1 (31.3.03)
Schematics, Placement and Parts List48 98-08901C64-OQ110, Q300, Q500, Q610, Q620, U7714813824A10 MMBT3904Q201 4813824A17 MMBT3906Q600 4813824B11 MMJT9435Q190 4813824B13 MMJT9410T1DiodesVR200 4813831A14 SMB5918D320 4813833C02 MMBD6100VR100-105, VR3104886182U05 UMZ6.8ENIntegrated CircuitsU510 5102870C15 MAX3100EEEU201, U220, U2405104187K10 MAX604ESAU230 5104187K89 MIC29302BUU370, U380, U5305105492X05 TC7SH32U520 5108428S67 MAX3223EAPU330 5109522E53 NC7SZ125U360 5109781E76 MAX3238U320 5109817F26 TC54VN2902EU420 5113805B39 MC74HC4053U410 5113811A56 MC145481U300, U350, U400, U5005113837A07 MC74LCX244U430 5186214J87 TPA6203A1GQVRU600 5187970L09 LM3652U310 5187970L15 ISP1104U770 5187970L20 LM2795BLXGeneralM100 5987772L02 MOTORY510 4884450T02 XTAL3_6864MHZLS400 5087951K01 SPKRTable 24. Developer Board Parts List (Continued)REFERENCE SYMBOLMOTOROLA PART NO. DESCRIPTIONDRAFT 1 (31.3.03)
98-08901C64-O 497. ERRATA7.1 SWITCH ASSIGNMENTS CORRECTIONThe S100 options switch on the Developer Board is labeled incorrectly. Figure 18 shows the correct function of each switch.PLEASE PROVIDE A PICTURE WITHOUT CALLOUTS.Figure 18. S100 Options Switch FunctionsDRAFT 1 (31.3.03)
Errata50 98-08901C64-ODRAFT 1 (31.3.03)
98-08901C64-O 518. INDEXDRAFT 1 (31.3.03)
Index52 98-08901C64-ODRAFT 1 (31.3.03)
REVISION HISTORYRevision Date PurposeDRAFT 1 (31.3.03)
March 2003© Motorola Inc., 2003 98-08901C66-Og20 Cellular EngineModule DescriptionCONTENTS REVISION HISTORY ................................................................................................................................................................iiPREFACE1.1 SCOPE OF THIS MANUAL .................................................................................................................................................11.2 WHO SHOULD USE THIS MANUAL.................................................................................................................................11.3 APPLICABLE DOCUMENTS ..............................................................................................................................................11.3.1 Documents...................................................................................................................................................................11.3.2 Standards.....................................................................................................................................................................11.4 HOW THIS MANUAL IS ORGANIZED..............................................................................................................................1INTRODUCTION2.1 GENERAL DESCRIPTION...................................................................................................................................................32.2 TERMS AND ABBREVIATIONS ........................................................................................................................................32.3 PRODUCT SPECIFICATIONS.............................................................................................................................................52.4 MODELS DESCRIPTION.....................................................................................................................................................72.5 REGULATORY APPROVALS.............................................................................................................................................72.6 REGULATORY STATEMENT.............................................................................................................................................72.7 SAFETY PRECAUTIONS.....................................................................................................................................................72.7.1 User Operation ............................................................................................................................................................72.7.2 Antenna Installation ....................................................................................................................................................8HARDWARE DESCRIPTION3.1 G20 BLOCK DIAGRAM DESCRIPTION AND OPERATION OVERVIEW ....................................................................93.1.1 g20 Block Diagram .....................................................................................................................................................93.1.2 Basic RS232 and Analog Audio Connectivity..........................................................................................................113.1.3 Basic RS232 and Digital Audio Connectivity...........................................................................................................113.1.4 Additional Recommended Connections....................................................................................................................123.1.5 G20 for Handset Configuration.................................................................................................................................133.2 POWER SUPPLY AND CURRENT CONSUMPTION .....................................................................................................133.2.1 Power Supply Design................................................................................................................................................133.2.2 G20 Current Consumption ........................................................................................................................................143.2.3 Turning the Unit On/Off ...........................................................................................................................................15DRAFT 1 (31.3.03)
iv 98-08901C66-O3.2.4 Sleep Mode Options ................................................................................................................................................. 163.3 COMMUNICATION INTERFACES.................................................................................................................................. 183.3.1 RS232 ....................................................................................................................................................................... 183.3.2 USB .......................................................................................................................................................................... 203.3.3 SIM........................................................................................................................................................................... 213.3.4 SPI ............................................................................................................................................................................ 223.3.5 Unique g20 Interfaces............................................................................................................................................... 223.4 AUDIO INTERFACES........................................................................................................................................................ 233.4.1 Analog Audio Interfaces........................................................................................................................................... 233.4.2 Digital Audio Interface............................................................................................................................................. 273.5 ANTENNA........................................................................................................................................................................... 283.5.1 Antenna Performance Recommendations ................................................................................................................ 283.6 CHARGER INTERFACE.................................................................................................................................................... 283.7 DISPLAY INTERFACE...................................................................................................................................................... 283.8 ESD PROTECTION ............................................................................................................................................................ 29CONNECTOR PIN ASSIGNMENTS4.1 CONNECTORS ................................................................................................................................................................... 314.2 PIN ASSIGNMENTS .......................................................................................................................................................... 31MECHANICAL DESCRIPTION5.1 MECHANICAL DETAILS.................................................................................................................................................. 37SERVICE SUPPORT6.1 CUSTOMER ASSISTANCE............................................................................................................................................... 396.2 TESTING A STANDALONE UNIT................................................................................................................................... 396.3 TROUBLESHOOTING....................................................................................................................................................... 396.4 PROGRAMMING ............................................................................................................................................................... 39INDEXDRAFT 1 (31.3.03)
98-08901C66-O vLIST OF FIGURESFigure 1. g20 Block Diagram .......................................................................................................................................................9Figure 2. Basic RS232 and Analog Audio Connectivity............................................................................................................11Figure 3. Basic RS232 and Digital Audio Connectivity.............................................................................................................12Figure 4. Additional g20 Connectivity .......................................................................................................................................12Figure 5. g20 for Handset Configuration....................................................................................................................................13Figure 6. VCC Signal During TX Periods..................................................................................................................................14Figure 7. On/Off Signal Timing Diagram ..................................................................................................................................15Figure 8. CTS Sleep Mode Timing.............................................................................................................................................16Figure 9. DCE/DTE Connectivity ..............................................................................................................................................17Figure 10. Waking Up the g20 when the DTE Wants to Send Data ..........................................................................................17Figure 11. Waking Up the DTE when the g20 Wants to Send Data ..........................................................................................18Figure 12. g20 RS232 Interface..................................................................................................................................................18Figure 13. RS232 Connection.....................................................................................................................................................19Figure 14. g20 USB Connection for g20 Models with a USB Driver........................................................................................20Figure 15. g20 USB Connection for g20 Models without a USB Driver...................................................................................21Figure 16. g20 SIM Connection .................................................................................................................................................21Figure 17. TX_EN Transmission................................................................................................................................................22Figure 18. Antenna-detect Circuit ..............................................................................................................................................23Figure 19. GPRS-detect Coverage Indication.............................................................................................................................23Figure 20. SPKR_N Output Configuration.................................................................................................................................24Figure 21. Mechanical Mounting Requirements ........................................................................................................................37DRAFT 1 (31.3.03)
vi 98-08901C66-OLIST OF TABLESTable 1. Terms and Abbreviations ............................................................................................................................................... 3Table 2. Product Specifications.................................................................................................................................................... 5Table 3. g20 Models..................................................................................................................................................................... 7Table 4. g20 Current Consumption............................................................................................................................................ 14Table 5. SPI Pinout..................................................................................................................................................................... 22Table 6. SPKR_N Output when g20 Set to Maximum Volume Level and Headset Interrupt is Low....................................... 24Table 7. SPKR_N Output when g20 Set to Maximum Volume Level and Headset Interrupt is Not Low................................ 25Table 8. SPKR_N Output when a 500mV RMS Signal is Transmitted..................................................................................... 25Table 9. SPKR_N Output when g20 is in Handset Mode.......................................................................................................... 26Table 10. SPKR_N Output when g20 is in Headset Mode........................................................................................................ 26Table 11. Alert Transducer Levels for the ALERT_P Signal.................................................................................................... 27Table 12. Antenna Performance Recommendations.................................................................................................................. 28Table 13. g20 Interface Connector Pin Assignments................................................................................................................. 31DRAFT 1 (31.3.03)
98-08901C64-O 11. PREFACE1.1 SCOPE OF THIS MANUALThis manual introduces the g20 embedded module and describes the technical details required by the data terminal equipment(DTE) team to successfully integrate the Motorola g20 cellular engine into an original equipment manufacturer (OEM) wirelesshost device. We at Motorola want to make this guide as helpful as possible. Keep us informed of your comments and suggestions forimprovements. You can reach us by Email at: GSM support-BSH015@email.mot.com.1.2 WHO SHOULD USE THIS MANUALThis manual is intended for all members of the DTE OEM integration team who are responsible for integrating the c18 moduleinto the host OEM device, including representatives from hardware, software and RF engineering disciplines. 1.3 APPLICABLE DOCUMENTSPLEASE PROVIDE DETAILS FOR THIS SECTION.1.3.1 Documentsg20 Developer’s Kit - 9808901C67-Og20 AT Commands - 9808901C68-O1.3.2 StandardsPLEASE PROVIDE DETAILS FOR THIS SECTION.1.4 HOW THIS MANUAL IS ORGANIZEDThis manual contains the following chapters: •Chapter 1 contains this Preface.•Chapter 2 introduces the g20 unit and provides important safety instructions.•Chapter 3 provides a detailed hardware description of the blocks and components comprising the g20.•Chapter 4 describes the pin assignments for g20 connectors.•Chapter 5 describes mechanical requirements for the g20 unit.•Chapter 6 provides contact information for Motorola Service Support and Customer Assistance, as well as valuabletroubleshooting and programming information.DRAFT 1 (31.3.03)
Preface2 98-08901C64-ODRAFT 1 (31.3.03)
98-08901C64-O 32. INTRODUCTION2.1 GENERAL DESCRIPTIONThe g20 is Motorola’s newest family of embedded cellular products. Motorola continues its tradition of excellence byintroducing this new cellular engine family for GSM/GPRS communications, consisting of the d10, the d15 and the g18.The new module is similar to a condensed cellular phone core, and can be integrated in any system or product that needs totransfer voice or data information. Thus, it significantly enhances the system’s capabilities, transforming it from a standalone,isolated product to a powerful component connected to communication nets.The new g20 is extremely small in dimensions, yet packed with a host of highly-advanced features designed to facilitate fastand easy integration with OEM user products. It significantly shortens the development process for OEM developers, thanks toits wide range of built-in applications, and minimizes the product’s time to market.The g20 module is ideally suited for the automotive, telemetry, security, insurance and EPOS industries, for delivery andhandheld terminals, and for PDA markets.2.2 TERMS AND ABBREVIATIONSThis section provides definitions for terms and acronyms used in this document. Table 1. Terms and AbbreviationsAcronym/Term Definition/DescriptionAOC Automatic Output ControlBABT British Approval Board - TelecommunicationsCSD Circuit-switched DataDCE Data Communication Equipment (such as modems)DCS Digital Cellular System (GSM in the 1800MHz band)DOC Department of Communications (Canada)DSP Digital Signal ProcessorDTE Data Terminal Equipment (such as terminals, PCs and so on)DTMF Dual-Tone Multi-FrequencyEGSM Extended Global System for Mobile CommunicationsEIRP Effective Isotropic Radiated PowerEMC WHAT DOES THIS STAND FOR?EOTD Enhanced Observed Time DifferenceEPOS Electronic Point of SaleERP Effective Radiated PowerESD Electrostatic DischargeFCC Federal Communications Commission (U.S.)FTA Foreign Telecommunication AdministrationDRAFT 1 (31.3.03)
Introduction4 98-08901C64-OGCF WHAT DOES THIS STAND FOR?GPIO General Purpose Input/OutputGPRS General Packet Radio ServiceGSM Global System for Mobile CommunicationsIC Integrated CircuitLNA Low-noise AmplifierMMCX Multimedia Communications ExchangeMO Mobile OriginatedMT Mobile TerminatedOEM Original Equipment ManufacturerPCB Printed Circuit BoardPCM Pulse Code ModulationPCS Personal Communication System (also known as CDMA 1900)PDA Personal Data AssistantPDU Packet Data UnitPLL Phase-locked LoopPTCRB PCS-1900 Type Certification Review Board (GSM North America)R&TTE Radio and Telecommunications Terminal EquipmentRMS Root Mean SquareRTS Request To SendSAR Segmentation and ReassemblySIM Subscriber Identity ModuleSMS Short Message ServiceSPI Serial Peripheral InterfaceTDMA Time Division Multiple AccessUART Universal Asynchronous Receiver TransmitterUSB Universal Serial BusUSSD Unstructured Supplementary Services DataVCC Voltage Common CollectorVSWR Voltage Standing Wave RatioTable 1. Terms and Abbreviations (Continued)Acronym/Term Definition/DescriptionDRAFT 1 (31.3.03)
98-08901C64-O 5Introduction2.3 PRODUCT SPECIFICATIONSTable 2. Product SpecificationsProduct FeaturesOperating systems: EGSM: 900/1800 MHzGSM: 850/1900 MHzPhysical CharacteristicsSize: Size: 24.4 x 48.2 x 6.0 mmMounting: Two 2.2 mm holesWeight: 11.9 gramsEnvironmentalOperational temperature: -20°C +60°CFunctional temperature: -20°C +70°CStorage temperature: -40°C +85°CPerformanceOperating voltage: Voltage: 3.0 - 4.2 VCurrent consumption: < 2.5 mA @ DRX9 (Idle mode)Tx power: • 0.6 W, 850 MHz• 2 W, 900 MHz• 1 W, 1800/1900 MHzInterfacesConnectors: • Single 70-pin, board-to-board•RF MMCXSIM Card: • Local SIM connectivity• 32K SIM• 1.8/3.0 VSerial: • RS232:• BR from 300 bps to 115 Kbps• Auto BR from 300 bps to 115 Kbps•USB• 12 Mbps USB specifications, Rev. 1.1Data FeaturesGPRS: • Multi-slot class 8 (4 down; 1 up)• Max BR 85.6 Kbps• Class B GSM 07.10 multiplexing protocol• Coding scheme CS1-CS4CSD: Max BR 14.4 KbpsSMS: • MO/MT Text and PDU modes• Cell broadcastFAX Class 1Voice FeaturesTelephonyDigital audioDifferential analog audio linesDRAFT 1 (31.3.03)
Introduction6 98-08901C64-OVoice Features (Continued)Vocoders EFR/ER/FR/AMRDTMF supportAudio control: echo cancellation, noise suppression, side tone and gain controlGSM Supplementary ServiceUSSD Phase IICall forwardingCall hold, waiting and multipartyCall divertingMissed-call indicatorAOCCall barringCharacter SetUTF8UCS2Control/Status IndicatorsGPRS coverageWakeupAntenna detectTX enableResetEntertainment muteFeatures over RS232Embedded TCP/IP stackSTK Class IIUser ApplicationApplication Programming Interface (API)12 GPIO lines2 A/D linesEmergency and LocationFCC E911 Phase II Location Mandate using EOTDAT Command SetGSM 07.05GSM 07.07Motorola proprietary AT commandsAccessoriesFirmware data loaderData loggerDeveloper KitNoteSpecifications are subject to change without prior notice.Table 2. Product Specifications (Continued)DRAFT 1 (31.3.03)
98-08901C64-O 7Introduction2.4 MODELS DESCRIPTIONTable 3 lists the available g20 models.2.5 REGULATORY APPROVALSThe following regulatory approvals apply for the g20 module:•FTA, FCC, DOC, PTCRB•R&TTE•GCF•EMC•BABT•QS9000 manufacturing2.6 REGULATORY STATEMENTWE NEED SOURCE MATERIAL FOR THIS SECTION.2.7 SAFETY PRECAUTIONS2.7.1 User OperationDo not operate your telephone when a person is within 8 inches (20 centimeters) of the antenna. A person or object within 8inches (20 centimeters) of the antenna could impair call quality and may cause the phone to operate at a higher power level thannecessary. IMPORTANT: The telephone must be installed in a manner that provides a minimum separation distance of 20 cm or more between the antenna and persons to satisfy FCC RF exposure requirements for mobile transmitting devices.IMPORTANT: To comply with the FCC RF exposure limits and satisfy the categorical exclusion requirements for mobiletransmitters, the following requirements must be met: Table 3. g20 ModelsModel Operating Bands Interface Connectors Serial InterfaceF3001 GSM 850/1900 •70-pin 0.5 mm pitch•MMCX RF connector RS232F3002 EGSM 900/1800 •70-pin 0.5 mm pitch•MMCX RF connector RS232F3003 GSM 850/1900 •70-pin 0.5 mm pitch•MMCX RF connector USBF3004 EGSM 900/1800 •70-pin 0.5 mm pitch•MMCX RF connector USBDRAFT 1 (31.3.03)
Introduction8 98-08901C64-O2.7.2 Antenna Installation•A minimum separation distance of 20 cm needs to be maintained between the antenna and all persons, otherwise a SAR testwill be required.• The transmitter effective radiated power must be less than 1.5 Watts ERP (2.45 Watts or 33.9 dBm EIRP). This requires thatthe combination of antenna gain and feed line loss does not exceed 11 dBi.DRAFT 1 (31.3.03)
98-08901C64-O 93. HARDWARE DESCRIPTION3.1 G20 BLOCK DIAGRAM DESCRIPTION AND OPERATION OVERVIEWThis chapter describes the basic blocks comprising the g20 module and the connectivity options for the module.3.1.1 g20 Block DiagramFigure 1 shows a block diagram for the g20 module:Figure 1. g20 Block DiagramThe g20 consists of the following blocks:•Power and Audio Management IC: This block is responsible for the power on/off process, analog audio drivers, internalregulators, realtime clock activities, and the battery charging process. When an On command is received, this IC wakes upthe internal regulators and controls the reset process. This activity turns the unit on. When an Off command is received, thisIC sends the request to the main processor, which in turn shuts down the unit in an orderly fashion. During shutdown, theunit is disconnected from the network, all tasks are terminated and the regulators are shut down. The on/off inputs (On/Offand Ignition) are always on, even when the unit is off. TransmitterICMainProcessor &DSPMemoriesPower & AudioManagement ICReceiverICControlSerialUSBDriverPCMSIMGPIOSPIADCAudioChargerPowerInterface ConnectorG20AntOn/Off / IGNDRAFT 1 (31.3.03)
Hardware Description10 98-08901C64-O•Main Processor and DSP: This block is responsible for all the main tasks in the unit. This block contains the followingcomponents: •Main processor•DSP for controlling speech options•UART•USB block•Digital audio driver•SIM card•Two SPI buses (one internal and one externally accessible)•Main clock (26 MHz)•Address/data buses•RF PLL•Controller to the RF ICs, which is the heart of the unit This module provides the following connectivity:•Address/data bus•UART to the user connector•USB via an optional USB driver to the user connector•Digital audio (PCM) to the user connector•SIM card interface•SPI to the user connector•SPI to control the RF ICs•Control signals to the power amplifier IC•Handshake with the Power and Audio Management IC•General I/O to the user connector•Receiver Block: This block is an RF block that contains all the receiver channels. It contains the following components:•Front filters•LNAs•Mixers•VCOs•I/Q outputs•Control signals•Transmitter Block: This is an RF block that contains all the transmitter channels. It contains the following components:•Power amplifiers•Power control loop•Antenna switch•Harmonic filter•Input buffers•Control signals•Antenna connectionDRAFT 1 (31.3.03)
98-08901C64-O 11Hardware Description3.1.2 Basic RS232 and Analog Audio ConnectivityThe following basic g20 connectivity requirements apply for UART (RS232) and analog audio connections (see Figure 2 forreference):•The RS232 is connected via eight pins to the g20.•The SIM card is connected via five pins to the SIM driver of the g20.•The microphone is connected via two pins to the g20 (Mic and Mic Ground).•The Speaker is connected via two differential lines to the g20.•The power supply is connected via eight pins (four VCC and four Ground) to the g20.•The On/Off or Ignition pin is connected.Figure 2. Basic RS232 and Analog Audio Connectivity3.1.3 Basic RS232 and Digital Audio ConnectivityThe following basic g20 connectivity requirements apply for UART (RS232) and digital audio connections (see Figure 3 forreference):•The RS232 is connected via eight pins to the g20.•The SIM card socket is connected via five pins to the SIM driver of the g20.•The DTE DSP is connected via five pins to the g20 (PCM).•The power supply is connected via eight pins (four VCC and four Ground) to the g20.•The On/Off or Ignition pin is connected.DTEUARTSIMSocketTransmitterICMainProcessor &DSPMemoriesPower & AudioManagement ICReceiverICControlSerialUSBDriverPCMSIMGPIOSPIADCAudioChargerPowerInterface ConnectorG20AntPowerSupplyMicSPKROn/Off orIgnitionOn/Off - IGNDRAFT 1 (31.3.03)
Hardware Description12 98-08901C64-OFigure 3. Basic RS232 and Digital Audio Connectivity3.1.4 Additional Recommended ConnectionsAdditional g20 connectivity options are described below (see Figure 4 for reference): •A USB connector that is connected via three lines to the g20. In this case, when USB is used, the DTE UART should be intri-state (high impedance).•A USB connector that is connected via a USB driver to the g20 (in g20 models without a USB driver). When USB is used,the DTE UART should be in tri-state (high impedance).•An SPI block that is connected via four pins to the g20 (for debug accessibility).Figure 4. Additional g20 ConnectivityTransmitterICMainProcessor &DSPMemoriesPower & AudioManagement ICReceiverICControlSerialUSBDriverPCMSIMGPIOSPIADCAudioChargerPowerInterface ConnectorG20DTEUARTSIMSocketAntPowerSupplyDTEDSPOn/Off / IGN On/Off or IGNTransmitterICMainProcessor &DSPMemoriesPower & AudioManagement ICReceiverICControlSerialUSBDriverPCMSIMGPIOSPIADCAudioChargerPowerInterface ConnectorG20USBDriverAntUSBConnectorSPIDeviceDRAFT 1 (31.3.03)
98-08901C64-O 13Hardware Description3.1.5 G20 for Handset Configurationg20 connectivity when using the g20 as a cellular phone engine is described below (see Figure 5 for reference):•The display is connected via five pins to the g20.•The keypad is connected via eight pins to the g20.•The SIM card socket is connected via five pins to the g20 SIM driver.•The charger is connected via six pins (Interface to National LM3652) to the g20.•The microphone is connected via two pins (Mic and Mic Ground) to the g20.•The speaker is connected via two differential lines to the g20.•The alert device is connected via two differential lines to the g20.•The vibrator is connected via one pin to the g20.•The battery is connected to the charger, and the charger is connected to the VCC and Ground pins.Figure 5. g20 for Handset Configuration 3.2 POWER SUPPLY AND CURRENT CONSUMPTIONThis section describes the following power-related considerations for the g20:•Power supply design•g20 current consumption•Turning the unit on/off•Sleep mode options3.2.1 Power Supply DesignThe following power supply design considerations apply to the g20:•The g20 is designed to operate between 3.0 V to 4.2 V on the g20 input (after all losses). In order to reduce battery powerconsumption, it is important to verify power supply line and regulator losses in the PCB.•The g20 is a GSM/GPRS phone that transmits in 0.5 ms pulses every 4.6 ms. The peak current is approximately 2.0 A.TransmitterICMainProcessor &DSPMemoriesPower & AudioManagement ICReceiverICControlDisplaySIMAudioChargerPowerInterface ConnectorG20DisplaySIMSocketAntBatteryMicSPKRKey PadAlertVibrator AlertVibratorKey PadChargerDRAFT 1 (31.3.03)
Hardware Description14 98-08901C64-O•When the power supply is lower than 2.85 V, the g20 software determines that the battery is low and disconnects the unit.•When the voltage is greater than 4.25 V, the g20 software detects an over voltage condition and does not allow the unit toestablish a call.•The VCC line typically drops during TX periods.Figure 6. VCC Signal During TX PeriodsTo minimize the ∆, it is recommended to use lines that are as short as possible, and to place a 1000uF capacitor (or the maximumpossible) in the g20 VCC input. (When a battery is used, there is no need for a large capacitor.)It is recommended to keep the ∆ less than 0.3 V.3.2.1.1 Power Supply RF FilteringIt is recommended to add RF filtering to the DC lines.Use 100nF, 39pF, 22pF or 8.2pF capacitors in parallel to the power supply lines (close to the g20 connector). MUST ALLTHESE CAPACITORS BE USED IN PARALLEL? OR SOME COMBINATION?3.2.2 G20 Current Consumption In order to design the power supply correctly and to calculate the battery life, you should take into account the currentconsumption of the g20 when operating in different modes.NoteThe power supply should be able to drive at least 2.5 A.Table 4. g20 Current ConsumptionMode Current Consumption (mA RMS)g20 in Sleep mode (camped and Sleep-mode enabled) < 2.5 mA, RMS @ DRX9, Typical 2.2 mA< 4.5 mA, RMS @ DRX2, Typical 3.5 mAg20 during search time < 40 mA, RMS, Typical 25 mA, RMSg20 off < 100 uA – Typical 25 uAg20 during a callGSM 900 @ Power level #5 < 350 mA, Typical 270 mA@ Power level #10, Typical 160 mA@ Power level #19, Typical 135 mATX TX TXTransmit PeriodsVCCDRAFT 1 (31.3.03)
98-08901C64-O 15Hardware Description3.2.3 Turning the Unit On/OffTwo different mechanisms are available to turn the g20 on and off:•On/Off signal (Pin 53)•Ignition line (Pin 51)3.2.3.1 On/Off SignalAfter power is applied to the g20, the on/off signal is pulled high to the VCC by a 200kΩ resistor.To turn the g20 on, the on/off signal should be pulled low for a minimum of 700 ms.After the g20 is turned on, the line should be pulled low for a minimum of 1.1 seconds to turn it off. The unit can be turned offonly if at least seven seconds have elapsed since turning it on.Figure 7 shows the timing diagram for the on/off signal.Figure 7. On/Off Signal Timing DiagramIn Figure 7, the following timing requirements apply:•T1 minimum = 0.7 seconds.•T2 minimum = 7 seconds.•T3 minimum = 1.1 seconds.GSM 850 @ Power level #7 < 250 mA, Typical 185 mA@ Power level #10, Typical 160 mA@ Power level #19, Typical 135 mADCS 1800 @ Power level #0 < 300 mA, Typical 220 mA@ Power level #10, Typical 160 mA@ Power level #19, Typical 135 mAPCS 1900 @ Power level #5 < 300 mA, Typical 240 mA@ Power level #10, Typical 160 mA@ Power level #19, Typical 135 mANoteDRX2/9 is the rate used by the base station to query the mobile station. The network operator sets this parameter.Table 4. g20 Current Consumption (Continued)Mode Current Consumption (mA RMS)T1 T2 T3DRAFT 1 (31.3.03)
Hardware Description16 98-08901C64-O3.2.3.2 Ignition LineWhen the g20 ignition line is held at a high level, the g20 is turned on. When this line is pulled low, the g20 is turned off. Inorder to protect the line from voltage bounces, the g20 is tuned off only if the line is held low for at least 500 ms.The high input to the ignition line must be greater than 2.75 V. The line can tolerate up to 40 V.After the g20 is turned on, the application should wait for DSR before sending data to the g20. The DSR becomes active loweight seconds after the start of T1, or after the ignition line is pulled high. DSR is only valid with UART, and is not valid withUSB.3.2.4 Sleep Mode OptionsThis section describes how the g20 can be awakened by the DTE and vice-versa.The DCE (g20) and the DTE can incorporate a sleep mechanism in their application in order to conserve battery life.Sleep mode enables the g20 to be awakened when the DTE wants to communicate with it. Conversely, it also enables the DTEto be awakened by the g20 when the g20 wants to communicate with it. 3.2.4.1 General•The g20 Sleep Mode option can be enabled or disabled using ATS24. •Sleep mode is activated by sending ATS24 = n, where n = 1, 2, 3 or 4 seconds. (To disable Sleep mode, send ATS24=0.) •The g20 drops the CTS (h/w Flow Control) when it is in Sleep mode. •The g20 does not enter Sleep mode when data is present on TXD or RXD lines.•At the end of the TXD (meaning, the TXD buffer is empty), the g20 waits n seconds (as defined in ATS24 = n) before enter-ing Sleep mode.•The DTE uses CTS to send data only when the g20 is awake. The DTE waits when the g20 is in Sleep mode.•The DTE should drop RTS during the sleep period in order to prevent the loss of data sent by the g20.Figure 8. CTS Sleep Mode TimingDRAFT 1 (31.3.03)
98-08901C64-O 17Hardware Description3.2.4.2 DCE/DTE ConnectivityFigure 9 shows DCE/DTE connectivity:Figure 9. DCE/DTE ConnectivityWaking Up the DCE:The following apply when waking up the DCE:•The Wake-up In line is used to awaken the g20. This input is routed into an Interrupt in the g20.•Whenever the Wake-up In line is at logic “low”, the g20 remains in an awake state.•When the DTE needs to send data, it should activate this line, wait 30 ms (the wake time required for the g20), and then startsending the data.•While the DTE is sending data, the wake-up line should remain low, so that the g20 does not enter Sleep mode.Figure 10. Waking Up the g20 when the DTE Wants to Send DataWaking Up the DTE:The following apply when waking up the DTE:•The g20 uses the Wake-up Out line to indicate to the DTE that data is present. •The DTE should not enter Sleep mode when the Wake-up Out line is low.•When the g20 has data to send to the DTE, it drops the Wake-up Out line to low.•The g20 will send the Wake-up Out line #ms to low, as indicated by S10x in Figure 11.DTE TXDWake up In line30 ms 30 ms 30 msDRAFT 1 (31.3.03)
Hardware Description18 98-08901C64-O•While the g20 is sending data, the Wake-up Out line remains low. •After the sending of data is completed, the g20 brings the Wake-up Out line to high.•The DTE should keep RTS off during this sleep period in order to avoid sending data when it is not ready.Figure 11. Waking Up the DTE when the g20 Wants to Send Data3.3 COMMUNICATION INTERFACESThis section describes the following four interfaces that are available in the g20:•RS232•USB•SIM•SPI3.3.1 RS232The following apply when usingthe RS2332 interface of the g20:•The g20 supports full hard-ware flow control (9 pins),software flow control (Xon/Xoff) and non-flow control.•The g20 UART is connected directly to the interface connector.•The g20 is a DCE device. Applicable line terminology is shown in Figure 12.Figure 12. g20 RS232 InterfaceRXDWake up Out lineS10x ms S10x ms S10x msDRAFT 1 (31.3.03)
98-08901C64-O 19Hardware Description3.3.1.1 RS232 LevelsRS232 levels are as follows:•Vih = 1.95 V minimum, 3.0 V maximum•Vil = 0.8 V maximum•Voh = 2.56 V minimum @ 100 uA•Vol = 0.2 V maximum @ 100 uA3.3.1.2 RS232 ConnectionFigure 13 shows an RS232 connection diagram:Figure 13. RS232 ConnectionThe following apply for g20 RS232 connections:•The g20 can use both UART and USB connectors, but cannot use them both simultaneously. •When USB is detected (by sensing the USB VBUS signal), the UART is disconnected from the g20 main processor pins andUSB functionality is added instead.•The DTE should unload the RS232 lines when USB is used in order for the USB to function properly.•RS232 signals are routed directly from the main processor to the connector.NoteA buffer is required whenever DTE levels do not match g20 levels.NoteIn g20 models without a USB driver (F3001and F3002 models), RS232 signals can be used to connect an externalUSB driver.G20 MainProcessorUARTUSBMUXUSBDriverD+D-USB VBUSUSBDetectTXD 21RXD 11RTSCTSDTRDSRDCDRI91519131723121410DTEUARTUSB connector3 stateG20 DTEDRAFT 1 (31.3.03)
Hardware Description20 98-08901C64-O3.3.2 USBThe following apply for g20 USB connections:•The g20 can use a USB port to communicate with a DTE device.•The USB port is also used to load software into the g20. It is recommended to include connectivity to this port in the userapplication.•The g20 supports USB1.1 at a baud rate of 12 Mbps.•The g20 supports two basic types, one with a USB driver (models F3003 and F3004), and one with the USB driver removed(models F3001 and F3002).3.3.2.1 USB ConnectionFigure 14 shows g20 connection for g20 models with a USB driver:Figure 14. g20 USB Connection for g20 Models with a USB DriverAs shown in Figure 14, the g20 USB is connected via three lines to the USB connector in the user application: D+, D- and USBVBUS. When USB VBUS is applied, the g20 detects it and switches the main processor to USB mode.NoteThe DTE UART loads the USB driver/main processor lines. Therefore, the UART should be kept in tri-state.G20 MainProcessorUARTUSBMUXUSBDriverD+D-USB VBUSUSBDetectTXD 21RXD 11RTSCTSDTRDSRDCDRI91519131723121410DTEUARTUSB connector3 stateG20 DTEDRAFT 1 (31.3.03)
98-08901C64-O 21Hardware DescriptionFigure 15 shows g20 USB connection for g20 models without a USB driver, using an external USB driver connection. Thecircuit shown in this figure can be used by the user application in cases where a USB driver is needed.Figure 15. g20 USB Connection for g20 Models without a USB Driver 3.3.3 SIMThe g20 includes a SIM card driver, however, it does not contain a SIM socket. SIM signals are routed to the interface connectorand include all the functionality required for SIM card operation.3.3.3.1 SIM ConnectionFigure 16 shows a g20 SIM connection:Figure 16. g20 SIM Connection48441-4SIMDriver6.8V Zenerswith lowCapacitanceFor ESD protection1uFG20DRAFT 1 (31.3.03)
Hardware Description22 98-08901C64-OThe following apply for g20 SIM connections:•The g20 passes all SIM ETSI tests when an external socket is connected to the g20 with lines shorter than 10 cm.•Longer connections require SIM testing to be performed in the user application.•The g20 can work with 1.8 V or 3 V SIM cards.•The g20 provides ESD protection for the SIM lines (6.8V Zener diodes with low capacitance), and for 1uF capacitors to theSIM VCC.•The SIM_PD (SIM Present Detect) signal is active when it is pulled low.3.3.4 SPIThe SPI is a standard microprocessor bus used as a g20 debugging port. This port activates a debug option that enables logs tobe taken from the g20 while it is operating. It is recommended that this bus be accessible in the user application. In the g20Developer’s Kit, the SPI is driven to an SPI/RS232 interface. The SPI is then converted and uses the RS232 port for debugging.In the g20 Developer’s Kit, the SPI bus is converted to an RS232 protocol using a special interface circuit. It then uses thestandard RS232 port for debugging. Table 5 shows the pins available on the SPI bus.3.3.4.1 SPI Connection3.3.5 Unique g20 InterfacesThe g20 features certain unique functions (pins) that may be required by selected user applications, such as TX_EN, AntennaDetect, GPRS Detect and Entertainment Mute. Each of these functions is described in the sections that follow.3.3.5.1 Transmit EnableThis pin indicates when the g20 is transmitting RF in the antenna.Figure 17. TX_EN TransmissionTable 5. SPI PinoutPin # Name Function Input/Output70 SPI_CS SPI chip-select Output62 SPI_IRQ SPI Interrupt Input64 SPI_DIN SPI MISO input Input68 SPI_DOUT SPI MOSI output Output66 SPI_CLK SPI clock OutputDRAFT 1 (31.3.03)
98-08901C64-O 23Hardware Description3.3.5.2 Antenna DetectThis pin indicates whether or not the antenna is inserted. This option was requested by a specific customer and was preparedspecifically for their board layout. Thus, this option is not supported by the basic g20 models.The antenna-detect circuit detects whether the impedance of the antenna is 100 KΩ or lower. The antenna must have a resistanceto ground of less than 100 KΩ. in order to be detected. Figure 18. Antenna-detect Circuit3.3.5.3 GPRS-detect Coverage IndicationThis pin indicates whether or not the g20 is located in an area with GPRS network coverage. This pin can be used to indicatethe GPRS coverage status before GPRS section activation has occurred, or before a switch to circuit-switched data is made. Figure 19. GPRS-detect Coverage Indication3.3.5.4 Entertainment MuteThis pin is reserved for future use. It will be dedicated to automotive applications in which there is a need to mute the entertain-ment radio when there is a cellular call.3.4 AUDIO INTERFACESThe g20 has an analog audio interface and a digital audio interface. Both of these interfaces are described in the sections thatfollow.3.4.1 Analog Audio InterfacesThe g20 supports microphone input, headset microphone input, differential speaker output, and a differential alert speaker.3.4.1.1 Analog InputThe g20 has two analog inputs that are referenced to the microphone ground (pin 59):•Headset microphone: Pin 57 is the headset microphone input. Input to this line can be directly from a headset microphone.In order for the headset microphone to be active, the headset interrupt signal (pin 55) must be pulled low. The maximuminput to the g20 headset microphone before there is a distortion of the signal in the network is 12 mV RMS.•Hands-free microphone: Pin 61 is the microphone input to the g20. The microphone is active when the headset interruptsignal is not pulled low. The maximum input to the g20 microphone before there is a distortion of the signal in the networkis 32 mV RMS.No GPRS Coverage GPRS CoverageDRAFT 1 (31.3.03)
Hardware Description24 98-08901C64-O3.4.1.2 Analog OutputThe g20 has a differential speaker output and an alert output:•Speaker output: When headset mode is used, the headset speaker should be connected to the SPKR_N signal of the g20.When a differential amplifier is used, both lines should be connected. An 8-ohm speaker can be connected directly to thespeaker lines.•Alert: The g20 supports a direct connection for an alert transducer, in order to build a handset from the g20. All the soundsthat are transmitted to the alert can be routed to the speaker using the appropriate AT command.Table 6 shows the SPKR_N output in headset mode for different network signal levels when the g20 is set to the maximumvolume level and the headset interrupt is pulled low.The measurements shown in Table 6 apply in the following configuration:Figure 20. SPKR_N Output ConfigurationTable 6. SPKR_N Output when g20 Set to Maximum Volume Level and Headset Interrupt is LowdBm0 mV RMS SPKR_N3.14 1111.9 940 774.6 67-5 435.6 38-10 244.9 22-15.5 130 12.5-16 122.8 12-17 109.4 11-20 77.5 8.5-25 43.6 6.5-30 24.5 5.53000 250DRAFT 1 (31.3.03)
98-08901C64-O 25Hardware DescriptionTable 7 shows the output of the SPKR_N signal for different network signal levels when the g20 is set at the maximum volumelevel and the headset interrupt is not pulled low.Table 8 shows the SPKR_N output at different volume levels, when a 500mV RMS signal is transmitted from the network.Table 7. SPKR_N Output when g20 Set to Maximum Volume Level and Headset Interrupt is Not LowdBm0 mV RMS SPKR_N3.14 1111.9 3350 774.6 242-5 435.6 134-10 244.9 76-15.5 130 41-16 122.8 39-17 109.4 34-20 77.5 24-25 43.6 14-30 24.5 8max 2900 900Table 8. SPKR_N Output when a 500mV RMS Signal is TransmittedHandset Volume SPKR_N0 (lowest gain) 1512022833945557861107 (highest gain) 155DRAFT 1 (31.3.03)
Hardware Description26 98-08901C64-OTable 9 shows the typical keypad tone levels generated by the g20. These measurements taken with the g20 in handset mode(meaning the headset-detect signal is not pulled low).Table 10 shows the keypad tone levels generated by the g20 when in headset mode (meaning the handset-detect signal is pulledlow).Table 9. SPKR_N Output when g20 is in Handset ModeHandset Volume SPKR_N001122217232444342548266787954Table 10. SPKR_N Output when g20 is in Headset ModeHandset Volume SPKR_N001425.537.5410.5514619.5727.5DRAFT 1 (31.3.03)
98-08901C64-O 27Hardware DescriptionTable 11 shows the levels of the alert transducer measured on the ALERT_P signal at different ring volumes.3.4.1.3 Audio Circuit Design ConsiderationsIn order to design an audio circuit that produces clear audio, without being affected by the GSM transmission, the followingguidelines should be considered when designing the circuit:•The audio input to the g20 should be referenced to the MIC_GND line of the g20.•The microphone bias of the g20 for both the microphone and headset is 2.2 V. If a microphone with a different voltage isused, the bias should be as clean as possible, and referenced to MIC_GND. Because most GSM buzz (217Hz TDMA noise)is generated from the microphone path, if a different bias is created, it should be filtered to supply DC only.•The MIC_GND and GND are connected inside the g20 and should not be connected to the application board.•Keep the lines of the microphone inputs as short as possible. To filter the lines from RF emission, 39pF capacitors can beused.•The g20 GND should be connected on all four pins, with two mounting screws to the application ground.•If possible, the RF cable ground from the g20 should be connected to the GND of the g20.•The digital lines of the application should never be referenced to the MIC_GND.3.4.2 Digital Audio InterfaceThe g20 digital audio interface is a full-duplex SAP (serial audio port) comprised of four signals:•PCM_FS: This pin is used for frame sync output provided by the g20.•PCM_CLK: This pin is used for the clock output provided by the g20.•PCM_DIN: This pin is the serial input to the g20 SAP.•PCM_DOUT: This pin is the serial output of the g20 SAP.The following conditions apply to the digital audio interface of the g20:•The g20 SAP works in network mode, with four slots in each frame. Each slot consists of 16-bit data.•The frame sync rate is 8 KHz, and the clock rate is 512 KHz. •The g20 is the master in the SAP network. Therefore, the connected DSP should be configured as the host.Table 11. Alert Transducer Levels for the ALERT_P SignalHandset Volume ALRT_P010711532206330544245600685071200DRAFT 1 (31.3.03)
Hardware Description28 98-08901C64-O3.5 ANTENNAThe g20 has two models, one for North America Frequency bands (850/1900 MHz), and one for European Bands (900/1800 MHz). The following connection requirements apply for the g20 antenna:•The g20 is terminated with an MMCX connector, and with 50-ohm impedance in the relevant frequencies.•The g20 can be connected to any antenna with 50-ohm impedance in the relevant frequency bands.•The g20 is designed to work on VSWR, up to 3:1 The antenna should meet this requirement.3.5.1 Antenna Performance RecommendationsTable 12 lists the performance recommendations for the g20 antenna.3.6 CHARGER INTERFACEg20 software supports charging circuitry for 3.6 V Lithium Ion batteries on some g20 models. The software interface is designedto work with a charging IC from National Semiconductor, model LM3652. Refer to the schematics chapter in the g20Developer’s Kit for more details about the design of the charging circuitry.3.7 DISPLAY INTERFACEThe g20 supports a four-level gray-scale display with 96 x 65 pixels. The following five lines should be connected to the display:•LCD_CS•LCD_RS•LCD_DATA•LCD_CLK•RESET_NUse the BL_SINK line for backlighting (display and keypad) when using the display. The backlight sink can provide current upto 100 mA, and can be used as an open drain output for more than 100 mA.Table 12. Antenna Performance RecommendationsFrequencies:GSM 850 TX 824 – 849 MHzRX 869 – 893 MHzGSM 900 TX 880 – 915 MHzRX 925 – 960 MHzDCS 1800 TX 1710 – 1785 MHzRX 1805 – 1880 MHzPCS 1900 TX 1850 - 1910 MHzRX 1930 – 1990 MHzGain: 0 dBi (unity) gain or greaterImpedance: 50 OhmVSWR: Typical: 1.5:1Worst case: 2.5:1DRAFT 1 (31.3.03)
98-08901C64-O 29Hardware Description3.8 ESD PROTECTIONIn general, the g20 does not include embedded ESD protection circuits. This type of protection should be implemented in thecustomer application. Partial ESD protection is provided, as follows:•SIM lines are protected up to 3 KV with 6.8 V Zener Diodes.•VCC input is protected with a 2.2 uF capacitor.•Ignition input is protected with a 100 nF capacitor.DRAFT 1 (31.3.03)
Hardware Description30 98-08901C64-ODRAFT 1 (31.3.03)
98-08901C64-O 314. CONNECTOR PINASSIGNMENTS4.1 CONNECTORSThe g20 has two connectors: the g20 interface connector and the g20 RF connector. Each is described below.4.2 PIN ASSIGNMENTSThe g20 interface is provided via a 70-pin connector. Table 13 describes the pin assignments for the g20 interface connector.g20 Interface Connector Mating Connector Stacking Height 70-pin, 0.5mm pitch, Molex 53748-0708 Molex 52991-0708 3.0 mmg20 RF Connector Mating ConnectorStandard MMCX female Standard MMCX male (connector for cable)Table 13. g20 Interface Connector Pin AssignmentsPin # Signal Name Description I/O SignalLevel Models with USB Driver/Alternate FunctionMin Typ Max UnitsPower:1 GND Ground GND2 GND Ground GND3 GND Ground GND4 GND Ground GND5 VCC Power supply I DC 3.0 3.6 4.2 V6 VCC Power supply I DC 3.0 3.6 4.2 VDRAFT 1 (31.3.03)
Connector Pin Assignments32 98-08901C64-O7 VCC Power supply I DC 3.0 3.6 4.2 V8 VCC Power supply I DC 3.0 3.6 4.2 VGPIO:16 WAKEUP_IN Wakeup input I Logic 2.775 V26 WAKEUP_OUT Wakeup output O Logic 2.775 V25 RESET Reset signal output O Logic 2.775 V53 ON_OFF On/off switch I DC 3.0 3.6 4.2 V51 IGN Ignition input I Logic 2.775 3.6 16 V39 TX_EN GSM transmit indicator O Logic 2.775 V41 ANT_DET Antenna- presence detect O Logic 2.775 V49 GPRS_DET GPRS coverage indicator O Logic 2.775 V37 ENT_MUTE Entertainment mute O Logic 2.775 VUART:21 TXD RS232 TXD I Logic 2.775 V USB VMIN11 RXD RS232 RXD O Logic 2.775 V USB VPOUT9 RTS RS232 RTS I Logic 2.775 V USB XRXD15 CTS RS232 CTS O Logic 2.775 V USB VMOUT19 DTR RS232 DTR I Logic 2.775 V USB VPINTable 13. g20 Interface Connector Pin Assignments (Continued)Pin # Signal Name Description I/O SignalLevel Models with USB Driver/Alternate FunctionMin Typ Max UnitsDRAFT 1 (31.3.03)
98-08901C64-O 33Connector Pin Assignments13 DSR RS232 DSR O Logic 2.775 V USB TXENB17 DCD RS232 DCD O Logic 2.775 V USB SUSPEND23 RI RS232 RI O Logic 2.775 V USB SOFTCONUSB:10 USB_DET USB- connection detect I DC 4.4 5 5.25 V USB_VBUS12 Not connected USB_D+14 Not connected USB_D-SPI:70 SPI_CS SPI chip-select O Logic 2.775 V62 SPI_IRQ SPI interrupt I Logic 2.775 V64 SPI_DIN SPI MISO input I Logic 2.775 V68 SPI_DOUT SPI MOSI output O Logic 2.775 V66 SPI_CLK SPI clock O Logic 2.775 VSIM Card:50 SIM_PD SIM- presence detect I Logic 2.775 V48 SIM_VCC SIM VCC O DC 1.8 3 V44 SIM_RST SIM reset O Logic 1.8 3 VTable 13. g20 Interface Connector Pin Assignments (Continued)Pin # Signal Name Description I/O SignalLevel Models with USB Driver/Alternate FunctionMin Typ Max UnitsDRAFT 1 (31.3.03)
Connector Pin Assignments34 98-08901C64-O52 SIM_DIO SIM serial data I/O Logic 1.8 3 V46 SIM_CLK SIM clock O Logic 1.8 3 VPCM Audio:18 PCM_DIN Digital audio receive I Logic 2.775 V20 PCM_DOUT Digital audio transmit O Logic 2.775 V22 PCM_CLK Digital audio clock O Logic 2.775 V24 PCM_FS Digital audio frame sync O Logic 2.775 VDisplay:54 LCD_CS Display chip- select O Logic 2.775 V60 LCD_RS Display register-select O Logic 2.775 V56 LCD_DATA Display serial data O Logic 2.775 V58 LCD_CLK Display serial clock O Logic 2.775 VKeypad:30 KBC0 Keypad column 0 I Logic 2.775 V28 KBC1 Keypad column 1 I Logic 2.775 V32 KBR0 Keypad row 0 I Logic 2.775 V34 KBR1 Keypad row 1 I Logic 2.775 V36 KBR2 Keypad row 2 I Logic 2.775 VTable 13. g20 Interface Connector Pin Assignments (Continued)Pin # Signal Name Description I/O SignalLevel Models with USB Driver/Alternate FunctionMin Typ Max UnitsDRAFT 1 (31.3.03)
98-08901C64-O 35Connector Pin Assignments38 KBR3 Keypad row 3 I Logic 2.775 V40 KBR4 Keypad row 4 I Logic 2.775 V42 KBR5 Keypad row 5 I Logic 2.775 VAudio:67 SPKR_N Speaker inverted OAudio V69 SPKR_P Speaker O Audio V63 ALRT_N Alert speaker inverted OLogic V65 ALRT_P Alert speaker O Audio V61 MIC Microphone input IAudio V59 MIC_GNDMicrophone ground What goes in I/O column for this pin?GND V57 HDST_MIC Headset microphone IAudio V55 HDST_INT Headset-detect interrupt I Logic 2.775 VCharger:35 CHRG_DET Charger- presence detect I Logic 2.775 V33 CHRG_STATE Charger rate indicator I Logic 2.775 V31 CHRG_SW Accessory current control O Logic 2.775 VTable 13. g20 Interface Connector Pin Assignments (Continued)Pin # Signal Name Description I/O SignalLevel Models with USB Driver/Alternate FunctionMin Typ Max UnitsDRAFT 1 (31.3.03)
Connector Pin Assignments36 98-08901C64-O29 CHRG_DIS Charger disable O Logic 2.775 VADC:45 CHRG_TYP Accessory-type detect I Logic 0 2.775 V47 THERM Temperature measurement I Logic 0 2.775 VMiscellaneous:27 BL_SINK Backlight current sink IDC 80100mA43 VIB_OUT Vibrator regulator ODC 1.3 VTable 13. g20 Interface Connector Pin Assignments (Continued)Pin # Signal Name Description I/O SignalLevel Models with USB Driver/Alternate FunctionMin Typ Max UnitsDRAFT 1 (31.3.03)
98-08901C64-O 375. MECHANICAL DESCRIPTION5.1 MECHANICAL DETAILSThis section describes the mechanical details for the g20:Size: 45.2x24.4x6 mmMounting: Two 2.4 mmØ holes are provided that accommodate M2 screws or #1-64 UNC 2A machine screws. Torque to2 inches per pound. Refer to Figure 21 below for mounting requirements.Figure 21. Mechanical Mounting RequirementsDRAFT 1 (31.3.03)
Mechanical Description38 98-08901C64-ODRAFT 1 (31.3.03)
98-08901C64-O 396. SERVICE SUPPORT6.1 CUSTOMER ASSISTANCEFor customer assistance, contact us as directed below:Helpdesk email: n2cshd@motorola.comHelpdesk telephone: +972-3-568-40406.2 TESTING A STANDALONE UNITPLEASE PROVIDE DETAILS FOR THIS SECTION.6.3 TROUBLESHOOTINGPLEASE PROVIDE DETAILS FOR THIS SECTION.6.4 PROGRAMMINGPLEASE PROVIDE DETAILS FOR THIS SECTION.DRAFT 1 (31.3.03)
Service Support40 98-08901C64-ODRAFT 1 (31.3.03)
98-08901C64-O 417. INDEXDRAFT 1 (31.3.03)
Index42 98-08901C64-ODRAFT 1 (31.3.03)

Navigation menu