rpwoggm清华Freescale应用开发研究中心

ARMAcornComputerGroupdevelopedworld’sfirstRISCprocessorin1985RogerWilsonandSteveFurberweretheprincipleARM(AdvancedRISCMachines)wasaspinoutfromAcornin1990withgoalofdefininganewmicroprocessorstandard PageARMARMdeliveredARM6inIntroduced32bitaddressingNewinstructionforprogramstatusVariantusedinAppleNewtonBy1996ARM7wasbeingwidelystartedportofWinCEtoAddedmultimediaExponentialgrowthfromthen Page Page 造商无需自己设计CPU,是生产关系的 ARMARMARMARMCortexApplicationReal-time

ProcessorARMand gainedcertainIPfromARMaspartoflawsuitsettlementandmodifiedARMarchitecturebrandingitasStrongARMStrongARMnamewaschangedtoProcessorSA1000,XScaleisclosetoARMv5instructionXScaledivisionof wassoldtoMarvelInc.inMicroprocessorandLab.,Spring2010@ofARM

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ARMARMV4是目前支持的最老的架构,是基于32-bit地址空间的32-bit指令集。ARMv4除了支持ARMv3ARMv4T增加了16-bitThumb指令集，这样ARMThumb体系增加了一个新的指令同时改进了Thumb/ARM相互作用、编译能力和混合及匹配ARM与Thumb例程，以更好地平衡代码空间和性并在ARM ISA上扩展了增强的DSP 指令集:增强的DSP指令包括支持饱和算术（saturatedarithmetic）,并且针对AudioDSP应用提高了70%性能。‘E’扩展表示在通用的CPU上提供DSP能 Thumb-2和TrustZone技术也用于ARMv6中。ARM1156T2(F)-S和ARM1176JZ(F)-S所有ARMv7profiles实现Thumb-2技术，同时还包 吐量400％，并提供浮点支持以满足下一代3D图 ,性能：1.1MIPS/MHz，可达300MIPS(Dhrystone2.1)，单32-bitAMBAbusARM926EJ-S,RM946E-S,ARM966E-S,ARM968E-S,性能：1.1MIPS/MHz，可达300MIPS(Dhrystone2.1)，高性能AHB,软核（soft 性能：1.35MIPS/MHz，可达430+Dhrystone2.1MIPS，，可选⽀栈（ReturnStack）。强⼤的ARMv6⽀持SIMD(SingleInstructionMultipleData)Dhrystone2.1MIPS，低功耗Cortex-A系列:⾯向用于复杂OS和应用的应用处理器（applicationsprocessors），⽀持ARM,ThumbandThumb-2指令集。式处理器，只⽀持Thumb-2指令集ARMDesignARMcoreusesRISCReducedinstructionLoadstoreLargenumberofgeneralpurposeParallelexecutionswithButsomedifferencesfromEnhancedinstructionsThumbDSPConditionalexecution32bitbarrelMicroprocessorandLab.,Spring2010@ 密度。ARMCortex-M3/4处理器是使用最少门数的ARMCPU， Cortex-M3/4采用了ARMV7Cortex-内核基于哈佛架构，指与Cortex-不同7系列处理器使 据共用信号总线以及器。由于指令和数据可以从器中同时，所以 （Cortex-处理器采用单⼀ （ 器映射包含两个位于的⼤小均为的bit-band 低有效位置位，那么bit-位为 ，那么bit-位为零。读别名后的地址将直接返回适当的bit-位中的值。 Page “传统的位处理方法和Cortex-M3bit-banding 是Cortex-处理器中⼀个完整的最多可⽀持240中断最多可具有256个可重新动态划分的不同优先级别。它⽀持优先级别中断源和脉冲中断Cortex-处理器使用⼀个可以重复定位

Page处理器免去了在传统的处理器使用的和未决的中断之间的移动。末尾连锁技术把需要用时0个时钟周期才动恢复，比软件执行用时更少，⼤⼤提高了频率为z的子系统的性级设计的总体成本。免去和代码的互相切换，对于早期的件、等待、等待中断指令，多核任务同步Cortex-M ARMCortexM3toTheCortex-M4featuresasingle-cyclemultiply-accumulate(MAC)unit,optimizedsingleinstructionmultipledata(SIMD)instructions,saturatingarithmeticinstructionsandanoptionalsingleprecisionFloating-PointUnit(FPU).PageARM7vsCortex-ARMCortexscalescalescaleKinetisKinetisARMCortex-M4 ARMCortex-M4 PinCompatibilityAcross PagePinCompatibilityAcrossMemoryMapofKinetisTheTheK10FamilyBlockTheTheK10FamilyK10Voltagerange:1.71to3.6V，5VtolerantUpto100MHz(120MHz)withDSP，instructions~1.25Dhrystone32~1MBflash/8K~128KB16-bitADCs,12-bitDACs,增益可编程放大器,UARTswithISO7816andIrDAsupport,I2S,CAN,I2CandDSPI，ModulatorTransmitterforIRwaveformgenerationPowerfulFlexTimerswhichsupportgeneralpurpose, ,andmotorcontrolfunctionsTimerfortemperaturerangesfrom-40°Cto105K10100PinK10LL的 8 16-bitUpto4pairsofdifferentialand24single-endedexternaloginputsOutput-differential16-bit,13-bit,11-bitor9--single-ended16-bit,12-bit,10-bitand8- bleGainAmplifier(PGA):uptox64-Amplifylow-amplitudesignalsbeforetheyarefedto-Onlyworkwithdifferentialinput(rangefrom0~1.2V±ADCconversionclkfrequency for≤13-bit- for16-bitADCconversion18.484~818.33 for≤13-bit37.037~361.402Kspsfor≤13-bit(continousconversion,peripheralclk=50MHz,noADChardwareConversioncomplete/hardwareaveragecompleteflagandSelectablehardwareconversiontriggerwithhardwarechannelAutomaticcomparewithinterruptforless-than,greater-thanorequal-to,withinrange,orout-of-range,progr blevalueHardwareaverageog

Operatesovertheentiresupply Selectableinterruptonrisingedge,fallingedge,orbothrisingorfallingedgesofcomparatoroutputSelectableinversiononcomparatorComparatoroutputmayDigitallyFiltercanbeCanbeclockedviaexternalSAMPLEsignalorscaledbusclockSupportDMAAcomparisoneventcanbeselectedtotriggeraDMAtransfer.TwosoftwareselectableperformanceShorterpropagationdelayattheexpenseofhigherpowerTd=50ns(typ.)-Lowpower,withlongerpropagationdelayTd=250ns(typ.)VoltageVREFV1canbeusedinmedicalapplicationssuchasglucosemeterstoprovideareferencevoltagetobiosensorsorasareferenceto ogperipheralssuchastheADC,DAC,orCMP.Lowpowermode:VREFV1canonlybeusedforinternalUSBVoltageRegulatorTheUSBVoltageRegulatormoduleisaLDOlinearvoltageregulatorto3.3Vpowerfromaninputpowersupplyvaryingfrom2.7Vto5.5Lowdrop-outvoltage:300Outputcurrent:120Automaticcurrentlimitingiftheloadcurrentisgreaterthan290Smalloutputcapacitor:2.2Stablewithaluminum,tantalumorceramic10/100MbpsEthernetMACIEEE1588Implementsthefull802.3specificationwithpreamble/SFDgeneration,framepaddinggeneration,CRCgenerationandcheckingDynamicallyconfigurabletosupport10/100MbpsoperationSupports10/100MbpsfullduplexandconfigurablehalfduplexoperationIPv4andIPv6SupportforallIEEE1588Referenceclockcanbechosenindependentlyofthenetwork bleprecisetime- ofingressandegressframes4channelIEEE1588timer,eachwithsupportforinputcaptureandoutputusingthe1588 ARMCortex-4K10开发套 K10K10K10K10K10K10

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