Sony FF031021 GSM/GPRS 850/1800/1900 Module User Manual

Sony Mobile Communications Inc GSM/GPRS 850/1800/1900 Module

User Manual

Confidential USERS MANUAL 1(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A Prepared by Date SEM/BMDES RODNEY WILLIAMS 2005-02-17 Contents responsible if other than preparer Remarks Approved by SEM/BMDES (RODNEY WILLIAMS) This document is managed in metaDoc. Note: Any hard copy of this document is for reference only. Due to template and application dependencies the header and footer may fail to display correct data. It is the responsibility of the user to ensure that they have a correct and valid version. Any outdated hard copy is invalid and must be removed from possible use. EDGE Daughter Card User Manual The information contained in this document is the proprietary information of Sony Ericsson Mobile Communications International. The contents are confidential and any disclosure to persons other than the officers, employees, agents or subcontractors of the owner or licensee of this document, without the prior written consent of Sony Ericsson Mobile Communications International, is strictly prohibited. Further, no portion of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, without the prior written consent of Sony Ericsson Mobile Communications International, the copyright holder. Sony Ericsson Mobile Communications International publishes this document without making any warranty as to the content contained herein. Further Sony Ericsson Mobile Communications International reserves the right to make modifications, additions and deletions to this document due to typographical errors, inaccurate information, or improvements to programs and/or equipment at any time and without notice. Such changes will, nevertheless be incorporated into new editions of this document. All rights reserved. © Sony Ericsson Mobile Communications International, 2005
Confidential USERS MANUAL 2(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A Contents Part 1 : Overview...............................................................................................3 1 Introduction..........................................................................................4 1.1 Target Users........................................................................................5 1.2 Prerequisites........................................................................................5 1.3 Notation ...............................................................................................5 2 EDGE Wireless Modem.......................................................................6 2.1 EDGE Wireless Modem in a Communication System .........................6 2.2 Functional Block Diagram....................................................................8 2.3 Features ..............................................................................................9 2.3.1 Mobile Station Characteristics .............................................................9 2.3.2 Environmental Conditions..................................................................12 2.4 SIM Card ...........................................................................................12 2.5 Other Features ..................................................................................12 2.6 Precautions........................................................................................12 Part 2 : Daughter Card Description .................................................................13 3 Mechanical Description .....................................................................14 3.1 Physical Detail ...................................................................................14 4 System Interface................................................................................16 4.1 Overview............................................................................................16 4.1.1 System Connector .............................................................................16 4.2 Electrical Interface Detail Format.......................................................18 5 Electrical Interface .............................................................................19 5.1 Power Interfaces................................................................................19 5.1.1 VIN.....................................................................................................19 5.1.2 3V3 ....................................................................................................21 5.1.3 VREF .................................................................................................21 5.1.4 GND...................................................................................................22 5.2 Status Interfaces................................................................................23 5.2.1 UVP ...................................................................................................23 5.2.2 OVP ...................................................................................................24 5.2.3 RI .......................................................................................................24 5.2.4 LED....................................................................................................25 5.2.5 VREF .................................................................................................25 5.3 Data Communication and Control Interfaces.....................................26 5.3.1 USB Interface ....................................................................................26 5.3.2 P_EN .................................................................................................26 5.4 ANTENNA CONNECTOR .................................................................27 6 Rudimentary Circuit Functions ..........................................................28 6.1 Power On Sequence .........................................................................28 6.2 Power Off Sequence .........................................................................29 6.3 USB communications timing..............................................................29
Confidential USERS MANUAL 3(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A Part 1 : Overview
Confidential USERS MANUAL 4(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A 1 Introduction The EDGE Daughter Card product is a custom product, developed for the host equipment customer. The EDGE Daughter Card is a total solution designed as an add-in option for integrators of the host equipment. The Daughter Card comprises of several component parts: • EDGE wireless modem, which is the wireless enabling circuitry integrated on to the Daughter Card PCB together with its mechanical RF shielding • RF connector, which provides physical connectivity between the Daughter Card and the antenna which is integrated in to the notebook mechanical housing • Voltage regulation circuitry, which converts raw unregulated power from the host battery to the core regulated voltage to the EDGE wireless components • System connector, which provided the data, control, power and status interface between the host and the wireless modem • SIM connector, a combined connector and retention device for the users Subscriber Identity Module (SIM) card EDGE WIRELESSCIRCUITRYVOLTAGEREGULATIONSYSTEMCONNECTORRF ANTENNACONNECTORDAUGHTERCARDSIMCONNECTOREDGE WIRELESSCIRCUITRYVOLTAGEREGULATIONSYSTEMCONNECTORRF ANTENNACONNECTORDAUGHTERCARDSIMCONNECTOR Figure 1-1 EDGE Daughter Card Component Parts
Confidential USERS MANUAL 5(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A 1.1 Target Users The EDGE Daughter Card solution is specifically for the host equipment. 1.2 Prerequisites Integration of the EDGE Daughter Card will be performed at facilities under the host equipment customer’s management. All necessary integration instruction, driver software and user documentation will be provided. No special pre-requisite knowledge is necessary. 1.3 Notation This document describes a custom solution for the host equipment. The Daughter Card product is defined through a cooperative partnership between the host equipment customer and Sony Ericsson Mobile Communications (SEMC). EDGE (Enhanced Data rate for GSM Evolution) is the wireless-enabling technology. The EDGE Daughter Card is a PCB assembly with the components described on the previous page integrated on to the board. The complete assembly is reffered in this document as the the host equipment DC (DC=Daughter Card ).
Confidential USERS MANUAL 6(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A 2 EDGE Wireless Modem 2.1 EDGE Wireless Modem in a Communication System Figure 2-1 illustrates the main blocks of a wireless communication system using the EDGE Daughter Card embedded in the host equipment device. It also shows the communication principles of the system. The definitions in the figure, as used elsewhere in this manual, are in accordance with the recommendations of GSM 07.07. • The MS (mobile station) represents the EDGE Daughter Card modem plus SIM card. • The modem excluding SIM card, is known as the ME (mobile equipment). • The TE (terminal equipment) is a micro-controller and is a part of the application. Figure 2-1 Main Blocks in a Wireless System In accordance with the recommendations of ITU-T (International Telecommunication Union - Telecommunications Standardisation Sector) V.24, the TE communicates with the MS over a serial interface. In this case this is the Universal Serial Bus (USB). The functions of the EDGE modem follow the recommendations provided by ETSI (European Telecommunications Standards Institute) and ITU-T. ETSI specifies a set of AT commands for controlling the GSM/E-GSM element of the modem; these commands are supplemented by Sony Ericsson specific commands. Figure 2-2 illustrates the interface between the Daughter Card and the the host equipment application. Each interface signal is described in Section 3. MS (EDGE MODEM)TE (DTE)GSM Network MS Status, responsesAT commands to control MSHost EquipmentWireless Communications SystemMS (EDGE MODEM)TE (DTE)GSM Network MS Status, responsesAT commands to control MS Wireless Communications System
Confidential USERS MANUAL 7(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A TE(DTE)MS(EDGEMODEM)SIMPowerPowerSYSTEM CONNECTORVoltageRegVoltageRegControlStatusAntennaCommunicationHOST EQUIPMENTTE(DTE)MS(EDGEMODEM)SIMPowerPowerSYSTEM CONNECTORVoltageRegVoltageRegControlStatusAntennaCommunicationHOSTTE(DTE)MS(EDGEMODEM)SIMPowerPowerSYSTEM CONNECTORVoltageRegVoltageRegControlStatusAntennaCommunicationHOST EQUIPMENTTE(DTE)MS(EDGEMODEM)SIMPowerPowerSYSTEM CONNECTORVoltageRegVoltageRegControlStatusAntennaCommunicationHOST Figure 2-2Figure 2-2 Interface between Daughter Card and Application Note that ITU-T standards define TE and TA as DTE (Data Terminal Equipment) and DCE (Data Circuit Terminating Equipment) respectively.
Confidential USERS MANUAL 8(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A 2.2 Functional Block Diagram A function representation of the EDGE duaghter card is included in the figure below. CACHEArbiterDMABridgeJTAGInterruptControlBootROMSharedMemoryExternalMemoryPowerMngmtChannelCodingBridgeXRAMDROMYRAMPROMPRAMARM926EJTeakLiteDSPInterruptControlA5EncryptEqualizerViterbiAccelPowerControlTX/RXStateMachineGSMTimerRFSerialPortBurstBufferAGCRegisterAGCDAC32kHzXTAL13MHz VCXOPROCESSOR BUS90° :4:4:2PLLBurstBufferSerialContrAFCRegisterPLLPGAD-SADCModMODDACAFCDAC90°90°90° :2PADACPARAMSIMUSBGPIOMEMORYVOLTAGE REGULATORSSWITCHINGREGULATOROV & SCCTPROTECTIONVOLTREGSYSTEM CONNECTORPOWER USB LEDVPASIM INTERFACELEVELSHIFTERPOWER STATUSLOOP FILTERRX SAWFILTERSbiasPA limiterBALUNPMB2259DC+ DRIVERSWITCHMAX4695fixed VAPCRFMDRF3145VPAANT SWITCHmuRataLMSP54JA-238INTELRD38F2030W0Z BASEBAND ASICRF TRANSCEIVER ASICBROADCOM BCM2132INFINEON PMB6258ANTENNACONNECTOREDGE MODULEDAUGHTER CARDUARTUARTCACHEArbiterDMABridgeJTAGInterruptControlBootROMSharedMemoryExternalMemoryPowerMngmtChannelCodingBridgeXRAMDROMYRAMPROMPRAMARM926EJTeakLiteDSPInterruptControlA5EncryptEqualizerViterbiAccelPowerControlTX/RXStateMachineGSMTimerRFSerialPortBurstBufferAGCRegisterAGCDAC32kHzXTAL13MHz VCXOPROCESSOR BUS90° :4:4:2PLLBurstBufferSerialContrAFCRegisterPLLPGAD-SADCD-SADCModMODDACMODDACAFCDACAFCDAC90°90°90° :2PADACPADACPARAMSIMUSBGPIOMEMORYVOLTAGE REGULATORSSWITCHINGREGULATOROV & SCCTPROTECTIONVOLTREGSYSTEM CONNECTORPOWER USB LEDVPASIM INTERFACELEVELSHIFTERPOWER STATUSLOOP FILTERRX SAWFILTERSbiasPA limiterBALUNPMB2259DC+ DRIVERSWITCHMAX4695fixed VAPCRFMDRF3145VPAANT SWITCHmuRataLMSP54JA-238INTELRD38F2030W0Z BASEBAND ASICRF TRANSCEIVER ASICBROADCOM BCM2132INFINEON PMB6258ANTENNACONNECTOREDGE MODULEDAUGHTER CARDUARTUART Figure 2-3 EDGE Daughter Card Functional Block Diagram
Confidential USERS MANUAL 9(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A 2.3 Features The EDGE modem performs a set of telecom services (TS) according to GSM standard phase 2+, ETSI and ITU-T. The functions of the modem are implemented by issuing AT commands over a serial interface. 2.3.1 Mobile Station Characteristics The EDGE modem can be configured for single, dual, triple and quad band GSM functionality. The quad band characteristics of the EDGE modem are shown in the following table.
Confidential USERS MANUAL 10(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A EDGE MODEM GSM850 E-GSM900 GSM1800 GSM1900 Frequency range (MHz) TX: 824-849 RX: 869-894 TX: 880-915 RX: 925-960 TX: 1710-1785 RX: 1805-1880 TX: 1850-1910 RX: 1930-1990 Channel spacing 200kHz Number of channels 123 x 8 (TDMA) 173 x 8 (TDMA) 373 x 8 (TDMA) 298 x 8 (TDMA) Duplex spacing 45MHz 95MHz 80MHz GSM/GPRS GMSK Modulation EDGE 8-PSK Nom. TBD Tx phase accuracy (burst) Max. <5° rms phase error ; <20° max peak phase error 100KHz <+0.5dB 200KHz <-30dB 250KHz <-33dB Tx Spectrum Due to Modulation 400KHz <-60dB 100KHz <-23dBm 200KHz <-26dBm 250KHz <-32dBm Tx Spectrum Due to Switching Transients 400KHz <-36dBm Receiver sensitivity (ANT pin) <-102dBm <-102dBm <-102dBm <-102dBm Class Class 4 Class 1 GSM Nom. +33dBm +30dBm Class Class E2 Class E2 Transmitter output power (ANT conn) EDGE Nom. +27dBm +26dBm Nom. <-104dBm Receiver sensitivity (ANT connector) Max. <-102dBm
Confidential USERS MANUAL 11(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A f1 -49dBm Rx Intermodulation F0 = 2f1-f2; |f2–f1| = 800KHz f2 -49dBm GPRS operation Class 10 Note that the number of frequency bands available will be dependant upon the factory configuration. The available bands will be determined by customer requirements.
Confidential USERS MANUAL 12(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A 2.3.2 Environmental Conditions The DC will support the following environmental conditions Temperature Range (Full GSM Specification)1 -10oC to +55oC Temperature Range (Operational) 2 -20oC to +65oC Storage Temperature Range -20°C to +75°C Table 2.3-1 Environmental Conditions Notes 1. Full compliance to Type Approval and Regulatory Approval requirements between these temperature ranges 2. Design Verification Testing (DVT) and Operational compliance between these temperature ranges. 2.4 SIM Card An external SIM card with 3V or 1.8V technology, can be connected to the modem via the SIM interface pins. 2.5 Other Features The EDGE modem supports a number of additional features including • 07.10 multiplexing (normal mode) • SIM application tool kit 2.6 Precautions The EDGE modem device is ESD protected up to 4K V contact and 8K V air discharge. It is recommended that integrators follow electronic device handling precautions when working with any electronic device system to ensure no damage occurs to the host or the radio device. The EDGE modem is integrated on to the daughter card. When the card is mounted in the host it is the responsibility of the integrator to ensure that static discharge protection beyond the voltages specified above are designed in to the host product. If exposed, the antenna is a vulnerable contact point for ESD.
Confidential USERS MANUAL 13(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A Part 2 : Daughter Card Description
Confidential USERS MANUAL 14(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A 3 Mechanical Description 3.1 Physical Detail Dimensional details given here are for reference only. For mechanical design data, please refer to the mechanical outline drawing 151 88 - KRD 104 1025/2. WIRELESSMODEM CIRCUIT(SHIELDED) SYSTEM CONNECTORRF CONNECTORWIRELESSMODEM CIRCUIT(SHIELDED) SYSTEM CONNECTORRF CONNECTOR Figure 3-1 Layout Detail (reference only)
Confidential USERS MANUAL 15(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A Figure 3-2 EDGE Daughter Card Primary Side View Figure 3-3 EDGE Daughter Card Underneath View
Confidential USERS MANUAL 16(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A 4 System Interface 4.1 Overview 4.1.1 System Connector All of the systems interface signals flow through a single connector; power, ground, data, cotrol, status and GPIO. Electrical connections to the modem are made through a 24 pin low insertion force (LIF) vertical SMT mount FFC or FPC cable receptor. The connector is a single sided contact type, for example the AVX Elco part 04-6244-024-011-800. Connector type NON-ZIF (LIF) ST SMT Contact Single Profile Height (mm) 4.10 Number of Contacts 24 Current Rating 0.4A Max. Voltage Rating 50V Max. Dielectric withstanding voltage 200Vrms Contact Material Phosphor bronze Tin-Plated Insulator material Heat resistant plastic Operating temperature 40ºC~+85ºC FFC/FPC thickness 0.3±0.05 Table 4.1-1 Connector Characteristics DATUM MARK(DATUM PIN)DETAIL APIN 1PIN 24DETAIL A0.2 ±0.050.5 TYP11.512.6DATUM MARK(DATUM PIN)DETAIL APIN 1PIN 24DETAIL A0.2 ±0.050.5 TYP11.512.6 Figure 4-1 Connector Detail
Confidential USERS MANUAL 17(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A Pin Name Function 1 USB_DN USB differential (-) line 2 USB_DP USB differential (+) line 3 VREF Modem logic voltage reference output from daughter card 4 OVP Over voltage protection output from daughter card 5 SPARE 6 SPARE 7 SPARE 8 GND Ground 9 GND Ground 10 GND Ground 11 GND Ground 12 GND Ground 13 GND Ground 14 VIN Voltage input from host application 15 VIN Voltage input from host application 16 VIN Voltage input from host application 17 VIN Voltage input from host application 18 VIN Voltage input from host application 19 VIN Voltage input from host application 20 RI Ring Indicator output from daughter card 21 3V3 Application reference voltage input to daughter card 22 LED Pulsing LED output from daughter card 23 UVP Under voltage & short circuit protection output from daughter card 24 P_EN Power ON enable input to daughter card Table 4.1-2 Pin List
Confidential USERS MANUAL 18(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A 4.2 Electrical Interface Detail Format Details of each electrical interface is contained in paragraph 5 (beginning page 19). The description of each interface follows a common format. An example is shown below: Interface Name This is the name of the interface; usually this is the actual name found in the pin list; sometimes this is a collective name for a number of signals, such as the example shown here for a UART. Function: This identifies the basic function of the interface; some interfaces are grouped according to their functional sub-class. Description: The description contains a basic overview of the interface and its functional relationship with the host. Pin Numbers: All pin numbers associated with the interface are listed; these will not necessarily be in numerical order but may be arranged to coincide with signal name list. Signal Names: All sigal names associated with the interface exactly as shown in the pin list; the signal names also contain information on signal flow direction. If not used: This gives specific details, for each signal, of how to terminate the physical connection if it is not required by the host; failure to observe this convention may result in unstable operation of the EDGE modem. (This may not be necessary in the host application since all signals have a defined function).
Confidential USERS MANUAL 19(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A 5 Electrical Interface This section describes each signal line of the electrical interface between the EDGE modem and the host equipment application. A summary of the function of each signal is provided, together with any additional relevant information. Signals are described from the perspective of the EDGE modem and Daughter Card circuitry. Consequently signals described as input are inputs to the modem, driven by the host [host⇒modem]. Likewise, signals described as output are driven by the modem in to the host [modem⇒host]. Bi-directional signal flow (I/O) is indicated by a double-headed arrow [modem⇔host]. In some instances the [daughter card] will be identified if the modem circuitry is not directly involved, or where additional interface circuitry resides between the host and the modem. Signals which are pulled internally are identified in parentheses beside the signal name as either (PU)=Pulled Up or (PD)=Pulled Down. Signals with no designation are not pulled either way. 5.1 Power Interfaces This section describes the power, ground, and other signals that control or indicate power states. • VIN • 3V3 • VREF • GND 5.1.1 VIN Function: Daughter card power supply Description: Primary voltage supply to switching regulator (5.5 to 20.0V). Pin Numbers: 14, 15, 16, 17, 18, 19 Signal Names: VIN [host⇒daughter card] If not used: Required Details: Power provided by the host will range from 5.5V minimum to a maximum 20.0V, dependent upon the battery discharge state. The Daughter Card has on board regulation which regulates the supply range to a steady 3.6V by means of a switching regulator rated at 3A max.
Confidential USERS MANUAL 20(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A Typical Electrical Characteristics: Parameter Condition Low Mid High Unit Voltage 5.5 7.4 20.0 V Peak* GSM850 2-slot TX 1880 1500 950 est Transmit mode Power Consumption (worst case) average GSM850 2-slot TX 450 340 145 est mA Idle mode Power Consumption (worst case) average DRX 2 9.9 7.6 3.8 est mA *Peak current consumption is an instantaneous value which occurs during a TDMA transmitter burst. Table 5.1-1: VIN Electrical Characteristics
Confidential USERS MANUAL 21(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A 5.1.2 3V3 Function: Daughter card reference voltage Description: Host reference to protection circuit & USB (3.3V) Pin Numbers: 21 Signal Names: 3V3 [host⇒daughter card] If not used: Required Details: The host supplies a 3.3V regulated supply to the Daughter Card for two primary functions: • reference supply for the undervoltage / short circuit protection circuitry • input for the USB interface Electrical Characteristics: Parameter Condition Min Nom Max Unit Voltage 3.30 V Ripple 100 mV 5.1.3 VREF Function: Voltage Reference Description: Core digital voltage reference from modem. Pin Number: 3 Signal Name: VREF [modem⇒host] If not used: Required Details: VREF is supplied as a reference voltage from the modem. This reference is the modem’s core digital supply voltage at a nominal 2.80V. The interface is capable of sourcing 200uA and is intended primarily for situations where host interface circuitry is required to be level shifted to maintain wireless modem signal level compatibility. If more current is required by the host, a current amplifier must be implemented.
Confidential USERS MANUAL 22(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A This signal can also be used to indicate whether the wireless modem is powered on or not. A high level (2.7V to 2.9V) indicates that the modem is powered on. A low level (<0.5V) indicates that the modem is powered off. All digital logic, except the SIM interface, is characteristic CMOS logic operating at VREF. Electrical Characteristics: Parameter Condition Min Typ Max Unit inactive 0.3 0.5 V VREF output voltage active 2.70 2.80 2.90 V VREF output current IOUT 200 uA Table 5.1-2: VREF Electrical Characteristics 5.1.4 GND Function: Ground Description: Modem common rail Pin Numbers: 8, 9, 10, 11, 12, 13 Signal Name: GND If not used: Required Details: Return path for all currents.
Confidential USERS MANUAL 23(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A 5.2 Status Interfaces Status interfaces indicate or control status features of the modem. • UVP • OVP • RI • LED • VREF 5.2.1 UVP Function: Under voltage protection Description: Status indicator to host of potential malfunction in Daughter Card circuitry Pin Number: 23 Signal Name: UVP (PD) [daughter card⇒host] If not used: Required Details: The Daughter Card has FET circuitry which uses 3V3 as a reference, driving an output to the host indicating the voltage condition of the of VBAT (the modem supply voltage). A resistive divider connected to VBATT presents a very low Vbe to the UVP transistor. This presents a steady state low voltage output under normal VBAT conditions with external pulldown circuitry. In the event of a short circuit or high current fault condition on the Daughter Card, the voltage drop from the switching regulator will bias the UVP transistor on and present a high output to the host equipment monitoring circuit. The UVP signal should be pulled low by the application circuit for correct function. Electrical Characteristics: Parameter Condition Min Typ Max Unit Normal 0.5 V UVP output voltage Fault 3.3 V Table 5.2-1: UVP Electrical Characteristics
Confidential USERS MANUAL 24(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A 5.2.2 OVP Function: Over voltage protection Description: Status indicator to host of potential malfunction in Daughter Card circuitry Pin Number: 4 Signal Name: OVP (PU) [daughter card⇒host] If not used: Required Details: The OVP signal is simply an output from the main onboard regulator. In it’s operational state under normal functional conditions this will output 3.6V nominal Parameter Condition Min Typ Max Unit Normal 3.6 V UVP output voltage Fault 3.7 V Table 5.2-2: OVP Electrical Characteristics 5.2.3 RI Function: Ring Indicator Description: Alert signal from the modem to indicate an incoming SMS, or unmasked unsolicited response Pin Number: 20 Signal Name: RI [modem⇒host] If not used: Leave open Details: Ring Indicator is essentially a wake-up call from the modem to the host application to signal one of two events: • an in-coming message (SMS). • an unmasked unsolicited response/result code. For the EDGE modem the Ring Indicator is implemented as a GPIO interface within the EDGE baseband device.
Confidential USERS MANUAL 25(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A A falling edge indicates an alert or message. The signal remains low for a period of time before going high. An SMS-page or unsolicited response/result code generates one pulse (the length is configurable using an AT command)[TBC]. The ring indicator is implemented on the daughter card as an open collector transistor output to allow the host the convenience of driving the host equipment circuitry. 5.2.4 LED Function: LED Description: LED-signal indicating a status change Pin Number: 22 Signal Name: LED [modem⇒host] If not used: Leave open Details: The LED is implemented on the Daughter Card as an open collector transistor output which providesa driver level interface to an LED acting as a status indicator for the user. The LED output can be made to blink at a rate pre-determined by modem software. 5.2.5 VREF The function of VREF is already described in 5.1.3. This interface can be used as a status indicator to the host that the modem is still powered. VREF is present whilst the modem is powered and is removed upon the completion of the modem power down. This feature can be useful in the event of a communications lock-up between the host and the daughter card.
Confidential USERS MANUAL 26(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A 5.3 Data Communication and Control Interfaces The serial data and control interfaces consist of the following : • USB • P_EN 5.3.1 USB Interface Function: USB data communication port Description: USB transmit and receive port for data communication between modem and host. Pin Numbers: 1, 2 Signal Names: USB_DP (2) [modem⇔host] USB_DN (1) [modem⇔host] If not used: Required Details: Power to the USB interface is provided by the 3V3 input from the host. 5.3.2 P_EN Function: Power Enable Description: Modem power enable control from host Pin Numbers: 24 Signal Names: P_EN [host⇒daughter card] If not used: Required Details: The power enable signal is provided from the host application and is routed to the switching regulator shutdown input and also to the REG_EN (regulator enable) pin on the modem. Assertion of this pin will initiate power up. The P_EN pin is active high and has to be maintained continually in order to keep the modem powered.
Confidential USERS MANUAL 27(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A 5.4 ANTENNA CONNECTOR Function: Antenna connector Description: 50 ohm wireless antenna connection. Pin Numbers: N/A Signal Names: ANTENNA If not used: Required Details: The antenna interface to the modem is routed to a low profile coaxial connector on the daughter card. The antenna connector has a nominal impedance of 50 ohms and a maximum frequency rating of 2.5GHz. IMPORTANT NOTE: FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance of 20cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
Confidential USERS MANUAL 28(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A 6 Rudimentary Circuit Functions This section contains some rudimentary circuit functions for the sequencing of powering the modem up and down. 6.1 Power On Sequence This sequence illustrates the power on procedure. Figure 6-1 Power On Sequence Sequence Detail: 1 VIN and 3V3 are supplied to the modem by the host. These two voltages can be supplied simultaneously when the Daughter Card is required to be powered on. Both voltages must be present before the power on sequence is initiated for the Daughter Card to function correctly. 2 Once VIN and 3V3 voltages are applied the host can enable power up by asserting power enable signal P_EN. The power up process will begin. 3 VREF may be used as an indicator that the modems regulators are powered. tPOn is typically less than 70 ms
Confidential USERS MANUAL 29(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A 6.2 Power Off Sequence This sequence illustrates the power off procedure. Figure 6-2 Power Off Sequence Sequence Detail: 1 The “AT+CFUN=4” instruction is sent from the host application to the modem in order to initiate a deregistration sequence. 2 The modem responds to the request with an ‘OK’ to indicate that deregistration is completed. Deregistration from the network can take from 3-30 seconds. After de-registration has been acknowledged the host application may remove P_EN. 3 The switching regulator output capacitor will gradually discharge until the modem regulators threshold is exceeded. and power down will be complete. VREF may be used as indicator of complete shut down. 4 When the modem has successful shutdown, and VREF has fallen bellow 0.5V then the host may safely remove VIN and 3V3 at any time. However the supplies can remain active without increasing current consumption (typically <25uA). 6.3 USB communications timing This sequence illustrates USB initialization.
Confidential USERS MANUAL 30(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A 1. The startup sequence begins with the completion of the power up ramping of the VREF signal as described in Power On Sequence. 2. The D+ signal is brought high with the power up of the USB block in the baseband circuitry. This produces the J state indicating to the USB host that a device is attaching. 3. A host initiated SE0 begins the USB protocol transactions. A power up summary of USB transactions is shown for example. Transactions by Device: #Transactns Acknowledgement Bytes Addr Endp Type Total Error ACK NAK None Attempt Success 0 0 SETUP 4 0 4 0 0 32 32 0 0 IN 4 0 4 0 0 36 36 0 0 OUT 2 0 2 0 0 0 0 3 0 SETUP 7 0 7 0 0 56 56 3 0 IN 7 0 7 0 0 132 132 3 0 OUT 6 0 6 0 0 0 0 4 0 SETUP 3 0 3 0 0 24 24 4 0 IN 3 0 3 0 0 27 27 4 0 OUT 2 0 2 0 0 0 0 4 2 IN 7164 0 3 7161 0 63 63 4 2 OUT 2 0 2 0 0 39 39 Control Transfers by Device: Addr Endp Packet# Dir Type Recipient Request Value Index Length 0 0 336 D->H Standard Device GET_DESCRIPTOR 256 0 64 0 0 426 H->D Standard Device SET_ADDRESS 3 0 0 0 0 874 D->H Standard Device GET_DESCRIPTOR 256 0 64 0 0 904 H->D Standard Device SET_ADDRESS 4 0 0 3 0 472 D->H Standard Device GET_DESCRIPTOR 256 0 18 3 0 481 D->H Standard Device GET_DESCRIPTOR 512 0 9 3 0 490 D->H Standard Device GET_DESCRIPTOR 512 0 255 3 0 670 D->H Standard Device GET_DESCRIPTOR 256 0 18 3 0 679 D->H Standard Device GET_DESCRIPTOR 512 0 9 3 0 688 D->H Standard Device GET_DESCRIPTOR 512 0 39 3 0 697 H->D Standard Device SET_CONFIGURATION 1 0 0 4 0 950 D->H Standard Device GET_DESCRIPTOR 256 0 18 4 0 959 D->H Standard Device GET_DESCRIPTOR 512 0 9 4 0 968 H->D Standard Device SET_CONFIGURATION 1 0 0
Confidential USERS MANUAL 31(31)Document number Revision 1/198 17-5/FCP 101 3317 Uen A Eye Diagram for Full Speed USB signaling.

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