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Freescale Semiconductor MCF51QE128RM Operational Modes, FLL Engaged Internal FEI, IREFS=0 CLKS=10

Models: MCF51QE128RM

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Internal Clock Source (S08ICSV3)

12.4Functional Description

12.4.1Operational Modes

IREFS=1

CLKS=00

IREFS=0

CLKS=10 BDM Enabled or LP =0

FLL Bypassed		FLL Bypassed
External Low
		External (FBE)
Power(FBELP)

IREFS=0

CLKS=10

BDM Disabled

and LP=1

Entered from any state when MCU enters stop

FLL Engaged

Internal (FEI)	IREFS=1
Internal (FEI)	CLKS=01
	CLKS=01
	BDM Enabled
	or LP=0	FLL Bypassed
	or LP=0
	FLL Bypassed
	FLL Bypassed	Internal Low
	Internal (FBI)	Internal Low
	Internal (FBI)	Power(FBILP)
		Power(FBILP)
		IREFS=1
		CLKS=01
		BDM Disabled
FLL Engaged		and LP=1
External (FEE)
IREFS=0
CLKS=00

Returns to state that was active

Stop before MCU entered stop, unless RESET occurs while in stop.

Figure 12-7. Clock Switching Modes

The seven states of the ICS are shown as a state diagram and are described below. The arrows indicate the allowed movements between the states.

12.4.1.1FLL Engaged Internal (FEI)

FLL engaged internal (FEI) is the default mode of operation and entered when all the following conditions occur:

•CLKS bits are written to 00.

•IREFS bit is written to 1.

In FLL engaged internal mode, the ICSOUT clock is derived from the FLL clock controlled by the internal reference clock. The FLL loop locks the frequency to the FLL factor times the internal reference frequency. The ICSLCLK is available for BDC communications, and the internal reference clock is enabled.

MCF51QE128 MCU Series Reference Manual, Rev. 3

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Freescale Semiconductor MCF51QE128RM Operational Modes, FLL Engaged Internal FEI, IREFS=1 CLKS=00 IREFS=0, IREFS=0 CLKS=10

Contents

MCF51QE64 MCF51QE32 Page MCF51QE128 Series Features Page MCF51QE128 Reference Manual MCF51QE128 MCU Series Reference Manual, Rev Contents Section Number Title Chapter Resets, Interrupts, and General System Control Freescale SemiconductorTitle Chapter Parallel Input/Output Control 127 ColdFire Core Chapter Interrupt Controller CF1INTC Analog Comparator 3V ACMPVLPV1 11.1.5 Internal Clock Source S08ICSV3 Section Number Title Chapter Inter-Integrated Circuit S08IICV2Real-Time Counter S08RTCV1 Serial Peripheral Interface S08SPIV3 Chapter Timer/Pulse-Width Modulator S08TPMV3 Chapter Version 1 ColdFire Debug CF1DEBUG Appendix a Revision History Chapter Device Overview MCF51QE128 Series Features by MCU and PackageFeature MCF51QE128 Devices in the MCF51QE128/64/32 SeriesMCU Block Diagram XoscMCF51QE128/64/32 Block Diagram Internal Clock Source ICS Module V1 ColdFire CoreSystem Clocks Module VersionsSimplified ICS Block Diagram System Clock DistributionIcsirclk FLL Engaged Internal FEI FLL Bypassed Internal Low-Power FbilpICS Modes of Operation FLL Engaged External FEEFLL Bypassed External Low-Power Fbelp Stop StopGet the latest version from freescale.com Get the latest version from freescale.com Chapter Pins and Connections Device Pin AssignmentPins in bold are added from the next smaller package Pin LqfpRecommended System Connections Basic System Connections Oscillator PowerReset and Rsto Background / Mode Select BKGD/MS ADC Reference Pins VREFH, Vrefl General-Purpose I/O and Peripheral PortsPriority Pin Assignment by Package and Pin Sharing PriorityPin Number Port Pin AltNumber Port Pin AltGet the latest version from freescale.com Introduction FeaturesChapter Modes of Operation MCF51QE128/64/32 Power Modes Conceptual Drawing OverviewCPU / Power Mode Selections SIM BDC PMCFull On Mode Regulator StateStop3 Run Stop2 LPrunTriggers for Transitions Shown in Figure Transition # From TriggerDebug Mode Secure ModeBDM in Low-Power Run Mode Run ModeLow-Power Run Mode LPrun Run ModesBDM in Low-Power Wait Mode Wait ModeLow-Power Wait Mode LPwait Wait ModesStop2 Mode Low-Range Oscillator Considerations for Stop2 Stop3 ModeStop4 Low Voltage Detect or BDM Enabled in Stop Mode Abbreviations used in Table On-Chip Peripheral Modules in Stop and Low-Power ModesLow-Power Mode Behavior CF1COREICS BDCCOP IRQGet the latest version from freescale.com Get the latest version from freescale.com MCF51QE128 Chapter MemoryMCF51QE128/64/32 Memory Map KbytesRead Write Base Address Region Byte CPU Access Type Allowed by RegionRegister Addresses and Bit Assignments Long ByteColdFire Memory Organization Direct-Page Register Summary Sheet 1 Direct-Page Register Summary Sheet 2 Register Address NameDirect-Page Register Summary Sheet 3 Direct-Page Register Summary Sheet 4 High-Page Register Summary Sheet 1High-Page Register Summary Sheet 2 High-Page Register Summary Sheet 3 High-Page Register Summary Sheet 4 Reserved Flash Memory Addresses Flash Module Reserved Memory LocationsHigh-Page Register Summary Sheet 5 0x0 0x1 0x2 0x3Reserved Flash Memory Addresses Register 0x0 0x1 0x2 0x3 0x000004080x0000040C NvprotV1 ColdFire Rapid Gpio Memory Map ColdFire Rapid Gpio Memory MapColdFire Interrupt Controller Memory Map V1 ColdFire Interrupt Controller Memory MapIntcsfrc RAMFlash IntccfrcAddresses Desired Value Values Programmed FeaturesLov-Voltage Programming Sequence Example Flash Options Register Fopt and Nvopt Register DescriptionsFlash Clock Divider Register Fcdiv Fcdiv Field DescriptionsFlash Configuration Register Fcnfg 10. Fopt Field Descriptions12. Fprot Field Descriptions Flash Protection Register Fprot and Nvprot11. Fcnfg Field Descriptions 13. Flash Protection Address Range0x41 0x00000-0x1EFFF 0x00-0x3F0x40 0x42Fcbef Fccf Fpviol Faccerr Fblank Command buffers are fullFlash Status Register Fstat W1cFunction Description Flash Command OperationsFlash Command Register Fcmd 15. Fcmd Field DescriptionsWriting the Fcdiv Register 200 195 ÷ 200 = 3%Start Command Write SequenceCommands Impossible ALL Program and Erase16. Flash Command Description Flash CommandsErase Verify Command Fcmd NVMProgram Command 11. Example Program Command Flow Burst Program Command Sequential Sector Erase CommandCommand Buffer Empty Programming13. Example Sector Erase Command Flow Mass Erase Command 14. Example Mass Erase Command FlowFlash Access Violations Illegal Flash OperationsOperating Modes Wait ModeBackground Debug Mode Flash Protection ViolationsUnsecuring the MCU using Backdoor Key Access SecurityReset While Flash Command Active ResetsFlash Reset Sequence Program and Erase TimesSecurity Stop SyncSet PRDIV8 and clock divider fields in CSR3 Device is unsecureChapter Resets, Interrupts, and General System Control Microcontroller ResetControl Bits Clock Source COP Overflow Count COP Configuration OptionsComputer Operating Properly COP Watchdog Copclks CoptPin Configuration Options Illegal Operation ResetIllegal Address Reset Interrupts and ExceptionsEdge and Level Sensitivity Power-On Reset OperationLow-Voltage Detect LVD System External Interrupt InitializationLVD Interrupt Operation LVD Reset OperationPeripheral Clock Gating Low-Voltage Warning LVW Interrupt OperationIrqpdd Irqedg Irqpe Irqf Irqie Irqmod Irqack Interrupt Pin Request Status and Control Register IrqscIrqsc Register Field Descriptions IrqpddSystem Reset Status Register SRS PORSystem Options Register 1 SOPT1 POR LVRSystem Options Register 2 SOPT2 SOPT1 Register Field DescriptionsSPI1PS SPSCLK1 MOSI1 MISO1 SS1 System Device Identification Register SDIDH, SdidlSOPT2 Register Field Descriptions IIC1PS SDA1 SCL1Lvdf Lvdie LVDRE2 Lvdse LVDE2 Bgbe Lvdack Sdidh Register Field DescriptionsSdidl Register Field Descriptions SPMSC1 Register Field Descriptions LPR Lprs Lpwui Ppde Ppdc PpdackSPMSC2 Register Field Descriptions Lvwf 11. LVD and LVW Trip Point Typical Values1Lvwf Lvdv Lvwv Lvwie Lvdvlvwv12. SCGC1 Register Field Descriptions System Clock Gating Control 1 Register SCGC1System Clock Gating Control 2 Register SCGC2 TPM3FLS 13. SCGC2 Register Field DescriptionsRTC SPI2 SPI1 Freescale Semiconductor 109 110 Freescale Semiconductor Freescale Semiconductor 111 112 Freescale Semiconductor Freescale Semiconductor 113 Chapter Parallel Input/Output ControlPort Data and Data Direction Pull-up, Slew Rate, and Drive Strength Port Internal Pull-up EnablePort Slew Rate Enable Data Direction Control Port Data Register Port ReadFreescale Semiconductor 115 Port Data Set, Clear and Toggle Data RegistersPort Drive Strength Select Port Data Set Registers V1 ColdFire Rapid Gpio FunctionalityKeyboard Interrupts Port Data Clear RegistersPull-up/Pull-down Resistors Edge Only SensitivityEdge and Level Sensitivity Freescale Semiconductor 117Keyboard Interrupt Initialization Pin Behavior in Stop ModesParallel I/O, Keyboard Interrupt, and Pin Control Registers Port a RegistersPort a Data Direction Register Ptadd Port a Pull Enable Register PtapePort a Data Register Ptad PTAD7 PTAD6 PTAD5 PTAD41 PTAD3 PTAD2 PTAD1 PTAD0PTAPE7 PTAPE6 PTAPE5 PTAPE4 PTAPE3 PTAPE2 PTAPE1 PTAPE0 Port a Slew Rate Enable Register PtasePort a Drive Strength Selection Register Ptads PTASE7 PTASE6 PTASE5 PTASE4 PTASE3 PTASE2 PTASE1 PTASE0Port B Data Direction Register Ptbdd Port B RegistersPort B Data Register Ptbd Ptads Register Field DescriptionsPtbdd Register Field Descriptions Port B Pull Enable Register PtbpePort B Slew Rate Enable Register Ptbse Ptbpe Register Field DescriptionsPort C Data Register Ptcd Port C RegistersPort B Drive Strength Selection Register Ptbds 10. Ptbds Register Field DescriptionsPort C Data Clear Register Ptcclr Port C Data Direction Register PtcddPort C Data Set Register Ptcset 12. Ptcdd Register Field Descriptions14. Ptcclr Register Field Descriptions Port C Pull Enable Register PtcpePort C Toggle Register Ptctog 16. Ptcpe Register Field DescriptionsPort C Drive Strength Selection Register Ptcds Port C Slew Rate Enable Register PtcsePort D Registers Port D Data Register Ptdd19. Ptdd Register Field Descriptions Port D Pull Enable Register PtdpePort D Data Direction Register Ptddd 20. Ptddd Register Field DescriptionsPort D Drive Strength Selection Register Ptdds Port D Slew Rate Enable Register PtdsePort E Registers Port E Data Register Pted24. Pted Register Field Descriptions Port E Data Direction Register PteddPort E Data Set Register Pteset 25. Ptedd Register Field DescriptionsPort E Toggle Register Ptetog Port E Pull Enable Register PtepePort E Data Clear Register Pteclr PTEPE7 PTEPE6 PTEPE5 PTEPE4 PTEPE3 PTEPE2 PTEPE1 PTEPE029. Ptepe Register Field Descriptions Port E Slew Rate Enable Register PtesePort E Drive Strength Selection Register Pteds 30. Ptese Register Field DescriptionsPort F Data Register Ptfd Port F Pull Enable Register PtfpePort F Registers Port F Data Direction Register Ptfdd34. Ptfpe Register Field Descriptions Port F Slew Rate Enable Register PtfsePort F Drive Strength Selection Register Ptfds 35. Ptfse Register Field DescriptionsPort G Data Direction Register Ptgdd Port G RegistersPort G Data Register Ptgd 36. Ptfds Register Field DescriptionsPort G Drive Strength Selection Register Ptgds Port G Pull Enable Register PtgpePort G Slew Rate Enable Register Ptgse 39. Ptgpe Register Field DescriptionsPort H Data Direction Register Pthdd Port H RegistersPort H Data Register Pthd 41. Ptgds Register Field DescriptionsPort H Drive Strength Selection Register Pthds Port H Pull Enable Register PthpePort H Slew Rate Enable Register Pthse 44. Pthpe Register Field DescriptionsPort J Data Direction Register Ptjdd Port J RegistersPort J Data Register Ptjd Port J Drive Strength Selection Register Ptjds Port J Pull Enable Register PtjpePort J Slew Rate Enable Register Ptjse 49. Ptjpe Register Field Descriptions51. Ptjds Register Field Descriptions Keyboard Interrupt 1 KBI1 Registers10.1 KBI1 Interrupt Status and Control Register KBI1SC 52. KBI1 Pin Mapping10.3 KBI1 Interrupt Edge Select Register KBI1ES Keyboard Interrupt 1 KBI2 Registers10.2 KBI1 Interrupt Pin Select Register KBI1PE 57. KBI2SC Register Field Descriptions 11.1 KBI2 Interrupt Status and Control Register KBI2SC11.2 KBI2 Interrupt Pin Select Register KBI2PE 58. KBI2PE Register Field DescriptionsFreescale Semiconductor 143 11.3 KBI2 Interrupt Edge Select Register KBI2ES59. KBI2ES Register Field Descriptions 144 Freescale Semiconductor Chapter ColdFire Core OverviewMemory Map/Register Description Data Registers D0-D7 Supervisor/User Access RegistersSupervisor Access Only Registers ColdFire Core Programming ModelData Address Registers A0-A6Supervisor/User Stack Pointers A7 and OTHERA7 Condition Code Register CCR Freescale Semiconductor 149CCR Field Descriptions Program Counter PCVector Base Register VBR CPU Configuration Register Cpucr BWD Status Register SRSR Field Descriptions Instruction Enhancements over Revision Isaa Functional DescriptionInstruction Set Architecture Isac Instruction DescriptionException Processing Overview Assignment Numbers Offset Hex Counter Exception Vector AssignmentsVector Stacked Numbers Offset Hex Counter Exception Stack Frame DefinitionAssignment SSP →Format Field Encodings Fault Status Encodings2.2 S08 and ColdFire Exception Processing Comparison FS30 DefinitionRTI RTE Exception Processing ComparisonAttribute S08 V1 ColdFire Processor Exceptions Access Error ExceptionAddress Error Exception Freescale Semiconductor 159Line OpMode Effective Address Illegal Instruction Exception10. ColdFire Opword Line Definition OpwordLine Instruction ClassFreescale Semiconductor 161 Privilege ViolationTrace Exception Unimplemented Line-F Opcode RTE and Format Error ExceptionUnimplemented Line-A Opcode Debug InterruptUnsupported Instruction Exception Fault-on-Fault HaltTrap Instruction Exception Interrupt ExceptionBDM Load 0x60 D0 Store 0x40 D0 Reset ExceptionAccess User read-only BDM read-only VER REV11. D0 Hardware Configuration Info Field Description Sramsz 12. D1 Hardware Configuration Information Field DescriptionFlashsz 13. Misaligned Operand References Instruction Execution TimingTiming Assumptions Address10 Size Bus Additional Operations CR/W15. Move Long Execution Times Move Instruction Execution Times14. Move Byte and Word Execution Times Source Destination Ax+ D16,Ax D8,Ax,Xi*SF Xxx.wlEffective Address Opcode An+ D16,An D8,An,Xn*SF Xxx.wl #xxx Standard One Operand Instruction Execution Times16. One Operand Instruction Execution Times Standard Two Operand Instruction Execution Times 17. Two Operand Instruction Execution TimesOpcode Effective Address An+ D16,An D8,An,Xn*SF Xxx.wl #xxx Miscellaneous Instruction Execution Times18. Miscellaneous Instruction Execution Times 20. Bcc Instruction Execution Times Branch Instruction Execution Times19. General Branch Instruction Execution Times HCS08 Chapter Interrupt Controller CF1INTCAttribute Interrupt Controller CF1INTC V1 ColdFire Exception Vector Table 0x150 Next SCI2rx 0x154 SCI2tx 0x158 0x134 Next SCI1rx 0x138 SCI1tx 0x13C IICx 0x140 KBIx 0x1440x148 Next ACMPx 0x14C 0x180 NextFreescale Semiconductor 177 Interrupt Source NumberTo V1 ColdFire core Modes of Operation External Signal DescriptionMemory Map and Register Definition CF1INTC Memory Map Memory MapIntc Force Interrupt Register Intcfrc Intcfrc Field Descriptions Freescale Semiconductor 181 Intc Wake-up Control Register IntcwcrINTCPL6P7,6 Field Descriptions ENB Intc Set Interrupt Force Register IntcsfrcIntcwcr Field Descriptions Intccfrc Field Descriptions Intc Clear Interrupt Force Register IntccfrcIntcsfrc Field Descriptions Offset CF1INTCBASE + 0x1F IntccfrcIntc Software and Level-nIACK Registers n = 1,2,3,...,7 Vecn Swiack10. Legend for Table Interrupt Request Level and Priority AssignmentsINTCSWIACK, INTCLVLnIACK Field Descriptions Priority within Level MidpointTPM2ch0 TPM2ch1 TPM2ch2 TPM2ovfl 12. V1 ColdFire Interrupt AssignmentsTPM1ch0 TPM1ch1 TPM1ch2 TPM1ovfl Handling of Non-Maskable Level 7 Interrupt Requests Emulation of the HCS08’s 1-Level IRQ Handling Initialization InformationApplication Information Freescale Semiconductor 189 Using INTCPL6P7,6 RegistersMore on Software IACKs ISR Code Snippet with Swiack Freescale Semiconductor 191 192 Freescale Semiconductor Chapter Rapid Gpio Rgpio Freescale Semiconductor 193V1 ColdFire Core Freescale Semiconductor 195 OEP Dsoc IFPCore RAM RgpioPin Muxing + Pad Logic On-platform Bus RgpioModule RGPIODATA150Rgpio Detailed Signal Descriptions Detailed Signal DescriptionsRgpio Module External I/O Signals Rgpio Read Memory Map Memory Map/Register DefinitionRgpio Write Memory Map Rgpiodir Field Descriptions Rgpio Data Direction RgpiodirRgpio Data Rgpiodata DIRRgpio Pin Enable Rgpioenb Rgpio Clear Data RgpioclrRgpioclr Field Descriptions Rgpio Set Data RgpiosetRgpio Toggle Data Rgpiotog Rgpioset Field DescriptionsTOG Application 1 Simple Square-Wave Generation10. Rgpiotog Field Descriptions Field Description 15-0 Rgpio Toggle DataLoop 11. Square-Wave Output PerformancePeripheral Bus-mapped Gpio Frequency @ Relative00x 12. Emulated SPI Performance using Gpio OutputsSPI Speed @ Relative CPU f = 50 MHz 29x206 Freescale Semiconductor Chapter Analog Comparator 3V ACMPVLPV1 Acmp Configuration InformationACMP/TPM Configuration Information Acmp Clock GatingInterrupt Vectors Freescale Semiconductor 209 210 Freescale Semiconductor Stop3 Mode Operation Block DiagramWait Mode Operation Stop2 Mode OperationAcbgs Acpe Register DefinitionStatus and Control Register ACMPxSC Acie ACF AC IRQ ACMP1 ACMP0 ACO ACMOD1 ACMOD2 SET ACFAcme InterruptsACMPxSC Field Descriptions Acmod214 Freescale Semiconductor Freescale Semiconductor 215 Chapter Analog-to-Digital Converter S08ADC12V1ADC Clock Gating Analog-to-Digital Converter S08ADC12V1 Alternate Clock Module ConfigurationsChannel Assignments ADC Channel AssignmentTemperature Sensor Hardware Trigger2provides a block diagram of the ADC module Freescale Semiconductor 219AD27-AD0 Signal PropertiesName Function Voltage Reference High Vrefh Analog Power VddadAnalog Ground Vssad Voltage Reference Low VreflInput Select CocoInput Channel Select ADCSC2 Register Field Descriptions Status and Control Register 2 ADCSC2Data Result High Register Adcrh AdactADR10 ADR9 ADR8 Data Result Low Register AdcrlCompare Value High Register Adccvh ADCV11 ADCV10 ADCV9 ADCV8Adccfg Register Field Descriptions Configuration Register AdccfgCompare Value Low Register Adccvl AdlpcConversion Modes Pin Control 1 Register APCTL1Clock Divide Select Input Clock SelectADPC15 ADPC14 ADPC13 ADPC12 ADPC11 ADPC10 ADPC9 ADPC8 Pin Control 2 Register APCTL210. APCTL1 Register Field Descriptions ADPC15 Pin Control 3 Register APCTL311. APCTL2 Register Field Descriptions ADPC23ADPC20 12. APCTL3 Register Field DescriptionsADPC21 ADPC16Hardware Trigger Clock Select and Divide ControlInput Select and Pin Control Conversion ControlAborting Conversions Initiating ConversionsCompleting Conversions Freescale Semiconductor 23113. Total Conversion Time vs. Control Conditions Power ControlSample Time and Total Conversion Time Adiclk AdlsmpMCU Wait Mode Operation Automatic Compare FunctionStop3 Mode With Adack Disabled MCU Stop3 Mode OperationMCU Stop2 Mode Operation Stop3 Mode With Adack EnabledPseudo-Code Example ADC Module Initialization ExampleInitialization Sequence Freescale Semiconductor 235COCO=1? External Pins and RoutingReset Initialize ADC Adccfg = ADCSC2 = ADCSC1 = Check No Yes Read Adcrh Then Adcrl To Clear Coco Bit ContinueAnalog Input Pins Analog Supply PinsAnalog Reference Pins Freescale Semiconductor 237Pin Leakage Error Sources of ErrorSampling Error Noise-Induced ErrorsLsb = Code Width and Quantization ErrorLinearity Errors Freescale Semiconductor 239Code Jitter, Non-Monotonicity, and Missing Codes Freescale Semiconductor 241 242 Freescale Semiconductor External Oscillator Stop2 Mode ConsiderationsChapter Internal Clock Source S08ICSV3 Freescale Semiconductor 243Internal Clock Source S08ICSV3 Freescale Semiconductor 245 246 Freescale Semiconductor HGO, RANGE, EREFS, ERCLKEN, Erefsten Freescale Semiconductor 2472is the ICS block diagram ICS Register Summary FLL Bypassed Internal Low Power FbilpFLL Bypassed External Low Power Fbelp Rdiv IrefsClks Rdiv Irefs Irclken Irefsten ICS Control Register 1 ICSC1ICSC1 Field Descriptions Reference Divide FactorICSC2 Field Descriptions ICS Control Register 2 ICSC2ICS Trim Register Icstrm Bdiv Range HGO Erefs Erclken ErefstenIcssc Field Descriptions ICS Status and Control IcsscIcstrm Field Descriptions DMX32 Irefst Clkst Oscinit FTRIM1 DRS608 19.92 MHz Reference range FLL factor DCO range512 16 20 MHz 1024 32 40 MHzIREFS=1 CLKS=00 IREFS=0 Operational ModesFLL Engaged Internal FEI IREFS=0 CLKS=10FLL Bypassed Internal FBI FLL Bypassed Internal Low Power FbilpFLL Engaged External FEE FLL Bypassed External FBEBus Frequency Divider Mode SwitchingFLL Bypassed External Low Power Fbelp StopInternal Reference Clock Low Power Bit UsageDCO Maximum Frequency with 32.768 kHz Oscillator External Reference ClockFixed Frequency Clock Local ClockIIC1 Position Options Module ConfigurationChapter Inter-Integrated Circuit S08IICV2 SOPT2IIC1PSMCF51QE128 Series Block Diagram Highlighting the IIC Modules Freescale Semiconductor 261 262 Freescale Semiconductor Freescale Semiconductor 263 SCL Serial Clock LineSDA Serial Data Line Iica Field Descriptions IIC Address Register IicaIIC Frequency Divider Register Iicf = Unimplemented or ReservedHold Times μs Iicf Field DescriptionsHold Time Values for 8 MHz Bus Speed Mult ICR SDAIIC Divider and Hold Values ICR SCLIIC Control Register IICC1 IICC1 Field DescriptionsTCF IIC Status Register IicsIics Field Descriptions Iicd Field Descriptions IIC Data I/O Register IicdIIC Control Register 2 IICC2 Freescale Semiconductor 269Gcaen IIC ProtocolIICC2 Field Descriptions Freescale Semiconductor 271 Start SignalSlave Address Transmission Arbitration Procedure Stop SignalRepeated Start Signal Data TransferClock Stretching Clock SynchronizationHandshaking Freescale Semiconductor 273Master-Receiver Addresses a Slave-Transmitter 13.4.2 10-bit AddressMaster-Transmitter Addresses a Slave-Receiver Byte Transfer Interrupt ResetsGeneral Call Address Address Detect Interrupt276 Freescale Semiconductor Module Initialization Master Initialization/Application InformationModule Initialization Slave Module Use12. Typical IIC Interrupt Routine Freescale Semiconductor 279 280 Freescale Semiconductor RTC Clock Sources Chapter Real-Time Counter S08RTCV1ADC Hardware Trigger RTC Modes of OperationInterrupt Vector MCF51QE128 Block Diagram Highlighting RTC Block and Pins Freescale Semiconductor 283Active Background Mode Erclk RTC Register SummaryLPO IrclkRTC Prescaler Divide-by values RTC Status and Control Register RtcscRtcsc Field Descriptions RtifRtccnt Field Descriptions RTC Counter Register RtccntRTC Modulo Register Rtcmod Rtcmod Field DescriptionsRtcps RTC Operation ExamplePrescaler Period KHz Internal Clock MHz External Clock Rtclks =0x52 0x53 0x54 0x55 0x00 0x01 Internal 1-kHz Clock Source RTC Clock Rtcps =Rtccnt Rtif Freescale Semiconductor 289290 Freescale Semiconductor Freescale Semiconductor 291 Chapter Serial Communications Interface S08SCIV4SCI Clock Gating Serial Communications Interface S08SCIV4 Module Initialization 294 Freescale Semiconductor Freescale Semiconductor 295 SCI Transmitter Block Diagram × Baud Rate ClockSCI Receiver Block Diagram Freescale Semiconductor 297Lbkdie SCI Baud Rate Registers SCIxBDH, SCIxBDLSCIxBDH Field Descriptions Loops Sciswai Rsrc Wake ILT SCI Control Register 1 SCIxC1SCIxBDL Field Descriptions LoopsTIE SCI Control Register 2 SCIxC2SCIxC2 Field Descriptions SCI Status Register 1 SCIxS1 Tdre Rdrf IdleParity error Framing errorNo parity error SCIxDLbkdif Rxedgif Rxinv Rwuid BRK13 Lbkde RAF SCI Status Register 2 SCIxS2SCIxS2 Field Descriptions RXINV1Txdir SCI Control Register 3 SCIxC3SCIxC3 Field Descriptions TXINV1Freescale Semiconductor 305 SCI Data Register SCIxDBaud Rate Generation Transmitter Functional Description Send Break and Queued IdleBreak Character Length Receiver Functional DescriptionData Sampling Technique BRK13Receiver Wakeup Operation Idle-Line WakeupInterrupts and Status Flags Freescale Semiconductor 309Additional SCI Functions Stop Mode OperationLoop Mode 15.3.5.1 8- and 9-Bit Data ModesSingle-Wire Operation Freescale Semiconductor 311312 Freescale Semiconductor Freescale Semiconductor 313 Chapter Serial Peripheral Interface S08SPIV3SPI Clock Gating MCF51QE128 Block Diagram Highlighting SPI Block and Pins Freescale Semiconductor 315 316 Freescale Semiconductor Freescale Semiconductor 317 Block DiagramsSPI System Block Diagram SPI Module Block Diagram SPI Baud Rate Generation Freescale Semiconductor 319Miso Master Data In, Slave Data Out Spsck SPI Serial ClockMosi Master Data Out, Slave Data SS Slave SelectSPI Control Register 1 SPIxC1 Modes of OperationSPI in Stop Modes SPIxC1 Field DescriptionsSS Pin Function Master Mode Slave ModeSPI Control Register 2 SPIxC2 Modfen SsoeSPIxC2 Register Field Descriptions SPI Stop in Wait ModeSPI Baud Rate Register SPIxBR Modfen Bidiroe SpiswaiSppr SPI Status Register SPIxSSPIxBR Register Field Descriptions SPRSPI Data Register SPIxD SPI Clock Formats 10. SPI Clock Formats Cpha = Freescale Semiconductor 327SPI Interrupts 11. SPI Clock Formats Cpha =Mode Fault Detection Freescale Semiconductor 329330 Freescale Semiconductor Freescale Semiconductor 331 Chapter Timer/Pulse-Width Modulator S08TPMV3TPM Clock Gating Timer/Pulse-Width Modulator S08TPMV3 Freescale Semiconductor 333 334 Freescale Semiconductor Freescale Semiconductor 335 336 Freescale Semiconductor TPM Block Diagram Freescale Semiconductor 337Signal Description ExtclkFreescale Semiconductor 339 TPMxCHn TPM Channel n I/O PinsExtclk External Clock Source High-True Pulse of an Edge-Aligned PWM TOF Toie Cpwms Clksb Clksa PS2 PS1 TPM Status and Control Register TPMxSCTPMxSC Field Descriptions TOFPrescale Factor Selection TPM Counter Registers TPMxCNTHTPMxCNTLTPM-Clock-Source Selection ClksbclksaTPMxCNT70 Any write to TPMxCNTL clears the 16-bit counter TPM Counter Modulo Registers TPMxMODHTPMxMODLTPMxCNT158 Any write to TPMxCNTH clears the 16-bit counter Freescale Semiconductor 343TPMxMOD70 TPM Channel n Status and Control Register TPMxCnSCTPMxMOD158 CHnF CHnIE MSnB MSnA ELSnB ELSnAMode, Edge, and Level Selection MSnBMSnA ELSnBELSnA Mode ConfigurationTPMxCnSC Field Descriptions CpwmsTPMxCnV158 TPM Channel Value Registers TPMxCnVHTPMxCnVLMode, Edge, and Level Selection TPMxCnV70Freescale Semiconductor 347 CounterCounter Clock Source Counter Overflow and Modulo Reset TPM Clock Source SelectionInput Capture Mode Channel Mode SelectionManual Counter Reset Output Compare ModeEdge-Aligned PWM Mode 15. PWM Period and Pulse Width ELSnA=0Center-Aligned PWM Mode Freescale Semiconductor 351General Reset OverviewDescription of Reset Operation Description of Interrupt Operation Timer Overflow Interrupt TOF DescriptionInterrupt Local Source Description Enable Interrupt SummaryChannel Event Interrupt Description Center-Aligned PWM CaseChapter Version 1 ColdFire Debug CF1DEBUG Freescale Semiconductor 355PST Version 1 ColdFire Core CF1CoreOEP Bkgd BDCRevision Modes of OperationsDebug Revision Summary Csrhrl CSR2D1HRLCore Status Command Set BDM Command TypesCommand Type Flash BDM?BDM GO External Signal DescriptionsDebug Module Signals Description ENBDM=1CPU DRc Register Name Width Access Reset Value Section BitsDebug Module Memory Map Configuration/Status Register CSR TRC DDC UHE BTB NPL IPI SSM FID DDH CSR Field DescriptionsBstat FOF TRG Halt Bkpt HRL BKD IPW TRC Method Reference Details Extended Configuration/Status Register XcsrXcsr Reference Summary Xcsr CPU Cstat Halt Stop Eseqc Clksw SEC Erase EnbdmApcsc Apce CPU StateErase W Eseqc WSEC R Xcsr CSR2 Configuration/Status Register 2 CSR2CSR2 Reference Summary Syncpc IntervalCSR2 Field Descriptions PSTBWA7 Pstb Valid Data Locations Oldest to NewestPstbss Configuration/Status Register 3 CSR310. CSR3 Reference Summary Start Condition Stop ConditionBFCDIV8 BDM Address Attribute Register BaarBFC Bfcdiv DIV8 Address Attribute Trigger Register Aatr SZM TTM TMMTrigger Definition Register TDR Signal of the processor’s local busBDM memory commands Normal processor access Else Reserved SZML2T L1T L2EDL2EA L1EAL2T No inversion Invert data breakpoint comparators Three bits disables the address breakpointProgram Counter Breakpoint/Mask Registers PBR0-3, Pbmr DRc 0x08 PBR0 Mask Reset15. PBR0 Field Descriptions DRc 0x09 PbmrAbhr Address Breakpoint Registers ABLR, Abhr17. Pbmr Field Descriptions Ablr21. Dbmr Field Descriptions Data Breakpoint and Mask Registers DBR, Dbmr19. Abhr Field Description Address1 Access Size Operand Location Background Debug Mode BDM22. Access Size and Operand Data Location Resulting Set of Possible Trigger CombinationsHalt Source Halt Timing Description CPU Halt23. CPU Halt Sources Cpucrard =Cpucrird = Background Debug Serial Interface Controller BDC BDM Communication Details 15. BDC Host-to-Target Serial Bit Timing Freescale Semiconductor 38516. BDC Target-to-Host Serial Bit Timing Logic BDM Command Set Descriptions Freescale Semiconductor 387Core Register Commands Miscellaneous CommandsMemory Commands PST Trace Buffer Read CommandsCRG CRN 24. BDM Command Code Field DescriptionsCRG VBRAckdisable BDM Command Set Summary25. BDM Command Summary AckenableReadpstb ReadcregReaddreg Syncpc Writecreg0x03 Disable host/target handshake protocol Always AvailableEnable host/target handshake protocol Always Available Freescale Semiconductor 393Enter active background mode if enabled Non-intrusive Xcsrsb Target 0x12 Memory data7-0Target 0x16 Memory Data15-8 Memory data7-0 0x12 MemoryNo operation Non-intrusive Read CPU control register Active Background0x30 Address23-0 Read debug control register Non-intrusive0xA0+CRN Host → Target Dreg data Target Memory data7-0 Target → Host0x39 0x310x35 0x50+CRN Host → Target Pstb dataRead CSR2 Status Byte Always Available Read general-purpose CPU register Active BackgroundRead Xcsr Status Byte Always Available Read CSR3 Status Byte Always Available0xC0+CRN Creg data Synchronize PC to PST/DDATA Signals Non-intrusiveWrite CPU control register Active Background Freescale Semiconductor 4010x10 Address23-0 Memory Data7-0 Write debug control register Non-intrusive0x80+CRN Dreg data Host → targetWrite general-purpose CPU register Active Background Write CSR2 Status Byte Always Available Serial Interface Hardware Handshake ProtocolWrite Xcsr Status Byte Always Available Write CSR3 Status Byte Always Available19. Target Acknowledge Pulse ACK Freescale Semiconductor 405Hardware Handshake Abort Procedure 20. Handshake Protocol at Command Level21signal timing is not drawn to scale Freescale Semiconductor 40721. ACK Abort Procedure at the Command Level Freescale Semiconductor 409 Real-Time Debug SupportReal-Time Trace Support PST40 Definition Enter user mode26. Processor Status Encodings Instructions, generate different encodingsFreescale Semiconductor 411 Begin Execution of Taken Branch PST =0x08-0x0B 23. Example JMP Instruction Output in Pstb PST Values DescriptionPstbpst PST Trace Buffer Pstb18.4.3.3 PST/DDATA Example PstbddataProcessor Status, Debug Data Definition PST/DDATA 27. PST/DDATA Specification for User-Mode InstructionsInstruction Operand Syntax Freescale Semiconductor 415416 Freescale Semiconductor Freescale Semiconductor 417 Supervisor Instruction Set No Connect GND ResetFreescale-Recommended BDM Pinout Freescale Semiconductor 419420 Freescale Semiconductor MCF51QE128RM Rev to Rev Changes Appendix a Revision HistoryChanges between Rev and Rev Chapter DescriptionRevision History Page How to Reach Us