mc39iWord文档格式.docx

mc39iWord文档格式.docx

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1.3Standards..........................................................................................................111.3标准........................................................................................................11

1.4Safetyprecautions.............................................................................................131.4安全措施.................................................................................................13

2Productoverview......................................................................................................152产品概述......................................................................................................15

2.1MC39ikeyfeaturesataglance..........................................................................162.1MC39i主要特点概览...............................................................................16

2.2Circuitconcept...................................................................................................182.2电路概念..................................................................................................18

3Applicationinterface.................................................................................................193应用程序接口.................................................................................................19

3.1Operatingmodes...............................................................................................203.1运行模式...................................................................................................20

3.2Powersupply.....................................................................................................213.2电源.........................................................................................................21

3.2.1PowersupplypinsontheZIFconnector...............................................223.2.1电力ZIF连接器上的电源引脚..........................................................22

3.2.2Minimizingpowerlosses.......................................................................233.2.2最大限度地减少功率损耗...................................................................23

3.3Powerup/downscenarios................................................................................243.3通电/断电情况..............................................................................................24

3.3.1TurnonMC39i......................................................................................243.3.1打开MC39i......................................................................................24

3.3.1.1TurnonGSMengineusingtheignitionlineIGT（Poweron）.................243.3.1.1使用上电线路打开GSM（电力引擎）...........................................24

3.3.1.2Timingoftheignitionprocess...............................................................253.3.1.2上电时间的过程............................................................................25

3.3.1.3TurnonGSMengineusingtheRTC（Alarmmode）..............................263.3.1.3使用RTC打开GSM（报警模式）................................................26

3.3.2TurnoffMC39i......................................................................................263.3.2关闭MC39i......................................................................................26

3.3.2.1TurnoffGSMengineusingtheAT^SMSOcommand...........................273.3.2.1使用AT^SMSO命令关闭的GSM..................................................27

3.3.2.2Maximumnumberofturn-on/turn-offcycles.......................................273.3.2.2最大数量的导通/关断周期............................................................27

3.3.2.3Emergencyshutdownusing/EMERGOFFpin......................................283.3.2.3使用/EMERGOFF引脚紧急关机......................................................28

3.3.3Automaticshutdown.............................................................................293.3.3自动关机..........................................................................................29

3.3.3.1Undervoltageshutdown........................................................................293.3.3.1欠压关断.....................................................................................29

3.3.3.2Temperaturedependentshutdown.......................................................293.3.3.2温度依赖关机..............................................................................29

3.3.3.3Deferredshutdownatextremetemperatureconditions........................303.3.3.3极端温度条件下的延迟关机.........................................................30

3.3.3.4MonitoringtheboardtemperatureofMC39i.........................................303.3.3.4监测MC39i板的温度.................................................................30

3.4AutomaticGPRSMultislotClasschange............................................................313.4GPRS的自动多时隙等级变化....................................................................31

3.5Powersaving.....................................................................................................323.5节电........................................................................................................32

3.5.1Nopowersaving（AT+CFUN=1）...........................................................323.5.1无节电（AT+CFUN=1）...........................................................32

3.5.2NON-CYCLICSLEEPmode（AT+CFUN=0）.........................................323.5.2非循环休眠模式（AT+CFUN=0）............................................32

3.5.3CYCLICSLEEPmode（AT+CFUN=5,6,7and8）................................323.5.3循环休眠模式（AT+CFUN=5，6，7和8）...............................32

3.5.4Timingofthe/CTSsignalinCYCLICSLEEPmodes...........................333.5.4循环睡眠模式中的时序..........................................................33

3.5.5WakeupMC39ifromSLEEPmode.....................................................353.5.5从休眠模式唤醒MC39i.................................................................35

3.5.6Summaryofstatetransitions（exceptSLEEPmode）............................363.5.6状态转换综述（除睡眠模式）........................................................36

3.6RTCbackup.......................................................................................................33.6RTC的备份................................................................................................37

3.7Serialinterface...................................................................................................383.7串行接口...................................................................................................38

3.8Audiointerface...................................................................................................403.8音频接口...................................................................................................40

3.8.1Speechprocessing...............................................................................413.8.1语音处理..........................................................................................41

3.9SIMinterface......................................................................................................423.9SIM接口...................................................................................................42

3.9.1RequirementsforusingtheCCINpin...................................................433.9.1使用CCIN引脚的要求................................................................43

3.9.2DesignconsiderationsforSIMcardholder...........................................443.9.2SIM固定器的设计注意事项.............................................................44

3.10Controlsignals...................................................................................................453.10控制信号..................................................................................................45

3.10.1Inputs...................................................................................................453.10.1输入.................................................................................................45

3.10.2Outputs.................................................................................................463.10.2输出.................................................................................................46

3.10.2.1Synchronizationsignal..........................................................................463.10.2.1同步信号......................................................................................46

3.10.2.2UsingtheSYNCpintocontrolastatusLED.........................................473.10.2.2使用SYNC引脚来控制状态LED................................................47

3.10.2.3Behaviorofthe/RING0line..................................................................483.10.2.3/RING0线的行为.........................................................................48MC39iHardwareInterfaceDescriptionMC39i_HD_V01.02Page4of7612.11.2003

4RFinterface..........