mc39iWord文档格式.docx
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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..........
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