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Freescale Semiconductor MCF51QE128RM manual Module Initialization

Models: MCF51QE128RM

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Chapter 15 Serial Communications Interface (S08SCIV4)

		Module Initialization:
Write:	SCIxBDH:SCIxBDL	to set	baud rate
Write:	SCIxC1	to configure	1-wire/2-wire, 9/8-bit data, wakeup, and parity, if used.
Write;	SCIxC2	to configure	interrupts, enable Rx and Tx, RWU
			Enable Rx wakeup, SBK sends break character
Write:	SCIxC3	to enable	Rx error interrupt sources. Also controls pin direction in
			1-wire modes. R8 and T8 only used in 9-bit data modes.

Module Use:

Wait for TDRE, then write data to SCIxD

Wait for RDRF, then read data from SCIxD

A small number of applications will use RWU to manage automatic receiver wakeup, SBK to send break characters, and R8 and T8 for 9-bit data.

SCIxBDH

SCIxBDL

SCIxC1

SCIxC2

SCIxS1

SCIxS2

SCIxS3

SCIxD

LBKDIE

RXEDGIE

SBR12

SBR11

SBR10

SBR9

SBR8

SBR7

SBR6

SBR5

SBR4

SBR3

SBR2

SBR1

SBR0

Baud rate = BUSCLK / (16 x SBR12:SBR0)

LOOPS

SCISWAI

RSRC

M

WAKE

ILT

PE

PT

Module configuration

TIE

TCIE

RIE

ILIE

TE

RE

RWU

SBK

Local interrupt enables Tx and Rx enable

Rx wakeup and send break

TDRE

TC

RDRF

IDLE

OR

NF

FE

PF

Interrupt flags

Rx error flags

LBKDIF

RXEDGIF

RXINV

RWUID

BRK13

LBKDE

RAF

Configure LIN support options and monitor receiver activity

R8

T8

TXDIR

TXINV

ORIE

NEIE

FEIE

PEIE

9th data bits

Local interrupt enables

Rx/Tx pin

Tx data path

direction in

polarity

single-wire

mode

R7/T7

R6/T6

R5/T5

R4/T4

R3/T3

R2/T2

R1/T1

R0/T0

Read: Rx data; write: Tx data

Figure 15-2. SCI Module Quick Start

MCF51QE128 MCU Series Reference Manual, Rev. 3

Freescale Semiconductor

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Freescale Semiconductor MCF51QE128RM manual Module Initialization

Contents

MCF51QE64 MCF51QE32 Page MCF51QE128 Series Features Page MCF51QE128 Reference Manual MCF51QE128 MCU Series Reference Manual, Rev Contents Section Number Title Freescale Semiconductor Chapter Resets, Interrupts, and General System ControlTitle Chapter Parallel Input/Output Control 127 ColdFire Core Chapter Interrupt Controller CF1INTC Analog Comparator 3V ACMPVLPV1 11.1.5 Internal Clock Source S08ICSV3 Chapter Inter-Integrated Circuit S08IICV2 Section Number TitleReal-Time Counter S08RTCV1 Serial Peripheral Interface S08SPIV3 Chapter Timer/Pulse-Width Modulator S08TPMV3 Chapter Version 1 ColdFire Debug CF1DEBUG Appendix a Revision History Feature MCF51QE128 MCF51QE128 Series Features by MCU and PackageChapter Device Overview Devices in the MCF51QE128/64/32 SeriesXosc MCU Block DiagramMCF51QE128/64/32 Block Diagram System Clocks V1 ColdFire CoreInternal Clock Source ICS Module Module VersionsSystem Clock Distribution Simplified ICS Block DiagramIcsirclk ICS Modes of Operation FLL Bypassed Internal Low-Power FbilpFLL Engaged Internal FEI FLL Engaged External FEEStop Stop FLL Bypassed External Low-Power FbelpGet the latest version from freescale.com Get the latest version from freescale.com Device Pin Assignment Chapter Pins and ConnectionsPin Lqfp Pins in bold are added from the next smaller packageRecommended System Connections Basic System Connections Oscillator PowerReset and Rsto Background / Mode Select BKGD/MS General-Purpose I/O and Peripheral Ports ADC Reference Pins VREFH, VreflPin Pin Assignment by Package and Pin Sharing PriorityPriority Number Port Pin AltPort Pin Alt NumberGet the latest version from freescale.com Introduction FeaturesChapter Modes of Operation Overview MCF51QE128/64/32 Power Modes Conceptual DrawingPMC CPU / Power Mode SelectionsStop3 Mode Regulator StateFull On Run Stop2 LPrunTransition # From Trigger Triggers for Transitions Shown in FigureSecure Mode Debug ModeLow-Power Run Mode LPrun Run ModeBDM in Low-Power Run Mode Run ModesLow-Power Wait Mode LPwait Wait ModeBDM in Low-Power Wait Mode Wait ModesStop2 Mode Low-Range Oscillator Considerations for Stop2 Stop3 ModeStop4 Low Voltage Detect or BDM Enabled in Stop Mode Low-Power Mode Behavior On-Chip Peripheral Modules in Stop and Low-Power ModesAbbreviations used in Table CF1CORECOP BDCICS IRQGet the latest version from freescale.com Get the latest version from freescale.com MCF51QE128/64/32 Memory Map Chapter MemoryKbytes RAMRegister Addresses and Bit Assignments CPU Access Type Allowed by RegionRead Write Base Address Region Byte Long ByteColdFire Memory Organization Direct-Page Register Summary Sheet 1 Register Address Name Direct-Page Register Summary Sheet 2Direct-Page Register Summary Sheet 3 High-Page Register Summary Sheet 1 Direct-Page Register Summary Sheet 4High-Page Register Summary Sheet 2 High-Page Register Summary Sheet 3 High-Page Register Summary Sheet 4 High-Page Register Summary Sheet 5 Flash Module Reserved Memory LocationsReserved Flash Memory Addresses 0x0 0x1 0x2 0x30x0000040C 0x0 0x1 0x2 0x3 0x00000408Reserved Flash Memory Addresses Register NvprotColdFire Interrupt Controller Memory Map ColdFire Rapid Gpio Memory MapV1 ColdFire Rapid Gpio Memory Map V1 ColdFire Interrupt Controller Memory MapFlash RAMIntcsfrc IntccfrcAddresses Desired Value Values Programmed FeaturesLov-Voltage Programming Sequence Example Flash Clock Divider Register Fcdiv Register DescriptionsFlash Options Register Fopt and Nvopt Fcdiv Field Descriptions10. Fopt Field Descriptions Flash Configuration Register Fcnfg11. Fcnfg Field Descriptions Flash Protection Register Fprot and Nvprot12. Fprot Field Descriptions 13. Flash Protection Address Range0x40 0x00-0x3F0x41 0x00000-0x1EFFF 0x42Flash Status Register Fstat Command buffers are fullFcbef Fccf Fpviol Faccerr Fblank W1cFlash Command Register Fcmd Flash Command OperationsFunction Description 15. Fcmd Field Descriptions200 195 ⎟ 200 = 3% Writing the Fcdiv RegisterCommands Impossible Command Write SequenceStart ALL Program and EraseErase Verify Command Flash Commands16. Flash Command Description Fcmd NVMProgram Command 11. Example Program Command Flow Burst Program Command Command Buffer Empty Sector Erase CommandSequential Programming13. Example Sector Erase Command Flow 14. Example Mass Erase Command Flow Mass Erase CommandIllegal Flash Operations Flash Access ViolationsBackground Debug Mode Wait ModeOperating Modes Flash Protection ViolationsSecurity Unsecuring the MCU using Backdoor Key AccessFlash Reset Sequence ResetsReset While Flash Command Active Program and Erase TimesSecurity Set PRDIV8 and clock divider fields in CSR3 SyncStop Device is unsecureMicrocontroller Reset Chapter Resets, Interrupts, and General System ControlComputer Operating Properly COP Watchdog COP Configuration OptionsControl Bits Clock Source COP Overflow Count Copclks CoptIllegal Address Reset Illegal Operation ResetPin Configuration Options Interrupts and ExceptionsLow-Voltage Detect LVD System Power-On Reset OperationEdge and Level Sensitivity External Interrupt InitializationPeripheral Clock Gating LVD Reset OperationLVD Interrupt Operation Low-Voltage Warning LVW Interrupt OperationIrqsc Register Field Descriptions Interrupt Pin Request Status and Control Register IrqscIrqpdd Irqedg Irqpe Irqf Irqie Irqmod Irqack IrqpddPOR System Reset Status Register SRSPOR LVR System Options Register 1 SOPT1SOPT1 Register Field Descriptions System Options Register 2 SOPT2SOPT2 Register Field Descriptions System Device Identification Register SDIDH, SdidlSPI1PS SPSCLK1 MOSI1 MISO1 SS1 IIC1PS SDA1 SCL1Lvdf Lvdie LVDRE2 Lvdse LVDE2 Bgbe Lvdack Sdidh Register Field DescriptionsSdidl Register Field Descriptions LPR Lprs Lpwui Ppde Ppdc Ppdack SPMSC1 Register Field DescriptionsSPMSC2 Register Field Descriptions Lvwf Lvdv Lvwv Lvwie 11. LVD and LVW Trip Point Typical Values1Lvwf LvdvlvwvSystem Clock Gating Control 2 Register SCGC2 System Clock Gating Control 1 Register SCGC112. SCGC1 Register Field Descriptions 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 Port Slew Rate Enable Port Internal Pull-up EnablePull-up, Slew Rate, and Drive Strength Data Direction Control Port Data Register Port ReadFreescale Semiconductor 115 Port Data Set, Clear and Toggle Data RegistersPort Drive Strength Select Keyboard Interrupts V1 ColdFire Rapid Gpio FunctionalityPort Data Set Registers Port Data Clear RegistersEdge and Level Sensitivity Edge Only SensitivityPull-up/Pull-down Resistors Freescale Semiconductor 117Parallel I/O, Keyboard Interrupt, and Pin Control Registers Pin Behavior in Stop ModesKeyboard Interrupt Initialization Port a RegistersPort a Data Register Ptad Port a Pull Enable Register PtapePort a Data Direction Register Ptadd PTAD7 PTAD6 PTAD5 PTAD41 PTAD3 PTAD2 PTAD1 PTAD0Port a Drive Strength Selection Register Ptads Port a Slew Rate Enable Register PtasePTAPE7 PTAPE6 PTAPE5 PTAPE4 PTAPE3 PTAPE2 PTAPE1 PTAPE0 PTASE7 PTASE6 PTASE5 PTASE4 PTASE3 PTASE2 PTASE1 PTASE0Port B Data Register Ptbd Port B RegistersPort B Data Direction Register Ptbdd Ptads Register Field DescriptionsPort B Slew Rate Enable Register Ptbse Port B Pull Enable Register PtbpePtbdd Register Field Descriptions Ptbpe Register Field DescriptionsPort B Drive Strength Selection Register Ptbds Port C RegistersPort C Data Register Ptcd 10. Ptbds Register Field DescriptionsPort C Data Set Register Ptcset Port C Data Direction Register PtcddPort C Data Clear Register Ptcclr 12. Ptcdd Register Field DescriptionsPort C Toggle Register Ptctog Port C Pull Enable Register Ptcpe14. Ptcclr Register Field Descriptions 16. Ptcpe Register Field DescriptionsPort D Registers Port C Slew Rate Enable Register PtcsePort C Drive Strength Selection Register Ptcds Port D Data Register PtddPort D Data Direction Register Ptddd Port D Pull Enable Register Ptdpe19. Ptdd Register Field Descriptions 20. Ptddd Register Field DescriptionsPort E Registers Port D Slew Rate Enable Register PtdsePort D Drive Strength Selection Register Ptdds Port E Data Register PtedPort E Data Set Register Pteset Port E Data Direction Register Ptedd24. Pted Register Field Descriptions 25. Ptedd Register Field DescriptionsPort E Data Clear Register Pteclr Port E Pull Enable Register PtepePort E Toggle Register Ptetog PTEPE7 PTEPE6 PTEPE5 PTEPE4 PTEPE3 PTEPE2 PTEPE1 PTEPE0Port E Drive Strength Selection Register Pteds Port E Slew Rate Enable Register Ptese29. Ptepe Register Field Descriptions 30. Ptese Register Field DescriptionsPort F Registers Port F Pull Enable Register PtfpePort F Data Register Ptfd Port F Data Direction Register PtfddPort F Drive Strength Selection Register Ptfds Port F Slew Rate Enable Register Ptfse34. Ptfpe Register Field Descriptions 35. Ptfse Register Field DescriptionsPort G Data Register Ptgd Port G RegistersPort G Data Direction Register Ptgdd 36. Ptfds Register Field DescriptionsPort G Slew Rate Enable Register Ptgse Port G Pull Enable Register PtgpePort G Drive Strength Selection Register Ptgds 39. Ptgpe Register Field DescriptionsPort H Data Register Pthd Port H RegistersPort H Data Direction Register Pthdd 41. Ptgds Register Field DescriptionsPort H Slew Rate Enable Register Pthse Port H Pull Enable Register PthpePort H Drive Strength Selection Register Pthds 44. Pthpe Register Field DescriptionsPort J Data Direction Register Ptjdd Port J RegistersPort J Data Register Ptjd Port J Slew Rate Enable Register Ptjse Port J Pull Enable Register PtjpePort J Drive Strength Selection Register Ptjds 49. Ptjpe Register Field Descriptions10.1 KBI1 Interrupt Status and Control Register KBI1SC Keyboard Interrupt 1 KBI1 Registers51. Ptjds Register Field Descriptions 52. KBI1 Pin Mapping10.3 KBI1 Interrupt Edge Select Register KBI1ES Keyboard Interrupt 1 KBI2 Registers10.2 KBI1 Interrupt Pin Select Register KBI1PE 11.2 KBI2 Interrupt Pin Select Register KBI2PE 11.1 KBI2 Interrupt Status and Control Register KBI2SC57. KBI2SC Register Field Descriptions 58. KBI2PE Register Field DescriptionsFreescale Semiconductor 143 11.3 KBI2 Interrupt Edge Select Register KBI2ES59. KBI2ES Register Field Descriptions 144 Freescale Semiconductor Overview Chapter ColdFire CoreMemory Map/Register Description Supervisor Access Only Registers Supervisor/User Access RegistersData Registers D0-D7 ColdFire Core Programming ModelData Address Registers A0-A6Supervisor/User Stack Pointers A7 and OTHERA7 Freescale Semiconductor 149 Condition Code Register CCRCCR Field Descriptions Program Counter PCVector Base Register VBR CPU Configuration Register Cpucr BWD Status Register SRSR Field Descriptions Instruction Set Architecture Isac Functional DescriptionInstruction Enhancements over Revision Isaa Instruction DescriptionException Processing Overview Assignment Numbers Offset Hex Counter Exception Vector AssignmentsVector Stacked Assignment Exception Stack Frame DefinitionNumbers Offset Hex Counter SSP →2.2 S08 and ColdFire Exception Processing Comparison Fault Status EncodingsFormat Field Encodings FS30 DefinitionRTI RTE Exception Processing ComparisonAttribute S08 V1 ColdFire Address Error Exception Access Error ExceptionProcessor Exceptions Freescale Semiconductor 15910. ColdFire Opword Line Definition Illegal Instruction ExceptionLine OpMode Effective Address OpwordLine Instruction ClassFreescale Semiconductor 161 Privilege ViolationTrace Exception Unimplemented Line-A Opcode RTE and Format Error ExceptionUnimplemented Line-F Opcode Debug InterruptTrap Instruction Exception Fault-on-Fault HaltUnsupported Instruction Exception Interrupt ExceptionAccess User read-only BDM read-only Reset ExceptionBDM Load 0x60 D0 Store 0x40 D0 VER REV11. D0 Hardware Configuration Info Field Description Sramsz 12. D1 Hardware Configuration Information Field DescriptionFlashsz Timing Assumptions Instruction Execution Timing13. Misaligned Operand References Address10 Size Bus Additional Operations CR/W14. Move Byte and Word Execution Times Move Instruction Execution Times15. Move Long 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 17. Two Operand Instruction Execution Times Standard 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 0x148 Next ACMPx 0x14C 0x134 Next SCI1rx 0x138 SCI1tx 0x13C IICx 0x140 KBIx 0x1440x150 Next SCI2rx 0x154 SCI2tx 0x158 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 Intcsfrc Field Descriptions Intc Clear Interrupt Force Register IntccfrcIntccfrc Field Descriptions Offset CF1INTCBASE + 0x1F IntccfrcVecn Swiack Intc Software and Level-nIACK Registers n = 1,2,3,...,7INTCSWIACK, INTCLVLnIACK Field Descriptions Interrupt Request Level and Priority Assignments10. Legend for Table 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 Freescale Semiconductor 193 Chapter Rapid Gpio RgpioV1 ColdFire Core Freescale Semiconductor 195 Core IFPOEP Dsoc RAM RgpioModule RgpioPin Muxing + Pad Logic On-platform Bus RGPIODATA150Rgpio Detailed Signal Descriptions Detailed Signal DescriptionsRgpio Module External I/O Signals Rgpio Read Memory Map Memory Map/Register DefinitionRgpio Write Memory Map Rgpio Data Rgpiodata Rgpio Data Direction RgpiodirRgpiodir Field Descriptions DIRRgpio Clear Data Rgpioclr Rgpio Pin Enable RgpioenbRgpio Toggle Data Rgpiotog Rgpio Set Data RgpiosetRgpioclr Field Descriptions Rgpioset Field Descriptions10. Rgpiotog Field Descriptions Application 1 Simple Square-Wave GenerationTOG Field Description 15-0 Rgpio Toggle Data11. Square-Wave Output Performance SPI Speed @ Relative CPU f = 50 MHz 12. Emulated SPI Performance using Gpio Outputs29x Freescale Semiconductor 205206 Freescale Semiconductor ACMP/TPM Configuration Information Acmp Configuration InformationChapter Analog Comparator 3V ACMPVLPV1 Acmp Clock GatingInterrupt Vectors Freescale Semiconductor 209 210 Freescale Semiconductor Wait Mode Operation Block DiagramStop3 Mode Operation Stop2 Mode OperationStatus and Control Register ACMPxSC Register DefinitionAcbgs Acpe Acie ACF AC IRQ ACMP1 ACMP0 ACO ACMOD1 ACMOD2 SET ACFACMPxSC Field Descriptions InterruptsAcme Acmod214 Freescale Semiconductor Freescale Semiconductor 215 Chapter Analog-to-Digital Converter S08ADC12V1ADC Clock Gating Analog-to-Digital Converter S08ADC12V1 Channel Assignments Module ConfigurationsAlternate Clock ADC Channel AssignmentHardware Trigger Temperature SensorFreescale Semiconductor 219 2provides a block diagram of the ADC moduleAD27-AD0 Signal PropertiesName Function Analog Ground Vssad Analog Power VddadVoltage Reference High Vrefh Voltage Reference Low VreflInput Select CocoInput Channel Select Data Result High Register Adcrh Status and Control Register 2 ADCSC2ADCSC2 Register Field Descriptions AdactCompare Value High Register Adccvh Data Result Low Register AdcrlADR10 ADR9 ADR8 ADCV11 ADCV10 ADCV9 ADCV8Compare Value Low Register Adccvl Configuration Register AdccfgAdccfg Register Field Descriptions AdlpcClock Divide Select Pin Control 1 Register APCTL1Conversion Modes Input Clock SelectADPC15 ADPC14 ADPC13 ADPC12 ADPC11 ADPC10 ADPC9 ADPC8 Pin Control 2 Register APCTL210. APCTL1 Register Field Descriptions 11. APCTL2 Register Field Descriptions Pin Control 3 Register APCTL3ADPC15 ADPC23ADPC21 12. APCTL3 Register Field DescriptionsADPC20 ADPC16Input Select and Pin Control Clock Select and Divide ControlHardware Trigger Conversion ControlCompleting Conversions Initiating ConversionsAborting Conversions Freescale Semiconductor 231Sample Time and Total Conversion Time Power Control13. Total Conversion Time vs. Control Conditions Adiclk AdlsmpAutomatic Compare Function MCU Wait Mode OperationMCU Stop2 Mode Operation MCU Stop3 Mode OperationStop3 Mode With Adack Disabled Stop3 Mode With Adack EnabledInitialization Sequence ADC Module Initialization ExamplePseudo-Code Example Freescale Semiconductor 235Reset Initialize ADC Adccfg = ADCSC2 = ADCSC1 = Check No External Pins and RoutingCOCO=1? Yes Read Adcrh Then Adcrl To Clear Coco Bit ContinueAnalog Reference Pins Analog Supply PinsAnalog Input Pins Freescale Semiconductor 237Sampling Error Sources of ErrorPin Leakage Error Noise-Induced ErrorsLinearity Errors Code Width and Quantization ErrorLsb = Freescale Semiconductor 239Code Jitter, Non-Monotonicity, and Missing Codes Freescale Semiconductor 241 242 Freescale Semiconductor Chapter Internal Clock Source S08ICSV3 Stop2 Mode ConsiderationsExternal Oscillator Freescale Semiconductor 243Internal Clock Source S08ICSV3 Freescale Semiconductor 245 246 Freescale Semiconductor Freescale Semiconductor 247 HGO, RANGE, EREFS, ERCLKEN, Erefsten2is the ICS block diagram FLL Bypassed External Low Power Fbelp FLL Bypassed Internal Low Power FbilpICS Register Summary Rdiv IrefsICSC1 Field Descriptions ICS Control Register 1 ICSC1Clks Rdiv Irefs Irclken Irefsten Reference Divide FactorICS Trim Register Icstrm ICS Control Register 2 ICSC2ICSC2 Field Descriptions Bdiv Range HGO Erefs Erclken ErefstenIcstrm Field Descriptions ICS Status and Control IcsscIcssc Field Descriptions DMX32 Irefst Clkst Oscinit FTRIM1 DRS512 16 20 MHz Reference range FLL factor DCO range608 19.92 MHz 1024 32 40 MHzFLL Engaged Internal FEI Operational ModesIREFS=1 CLKS=00 IREFS=0 IREFS=0 CLKS=10FLL Engaged External FEE FLL Bypassed Internal Low Power FbilpFLL Bypassed Internal FBI FLL Bypassed External FBEFLL Bypassed External Low Power Fbelp Mode SwitchingBus Frequency Divider StopDCO Maximum Frequency with 32.768 kHz Oscillator Low Power Bit UsageInternal Reference Clock External Reference ClockLocal Clock Fixed Frequency ClockChapter Inter-Integrated Circuit S08IICV2 Module ConfigurationIIC1 Position Options SOPT2IIC1PSMCF51QE128 Series Block Diagram Highlighting the IIC Modules Freescale Semiconductor 261 262 Freescale Semiconductor Freescale Semiconductor 263 SCL Serial Clock LineSDA Serial Data Line IIC Frequency Divider Register Iicf IIC Address Register IicaIica Field Descriptions = Unimplemented or ReservedHold Time Values for 8 MHz Bus Speed Iicf Field DescriptionsHold Times μs Mult ICR SDAICR SCL IIC Divider and Hold ValuesIICC1 Field Descriptions IIC Control Register IICC1TCF IIC Status Register IicsIics Field Descriptions IIC Control Register 2 IICC2 IIC Data I/O Register IicdIicd Field Descriptions Freescale Semiconductor 269Gcaen IIC ProtocolIICC2 Field Descriptions Freescale Semiconductor 271 Start SignalSlave Address Transmission Repeated Start Signal Stop SignalArbitration Procedure Data TransferHandshaking Clock SynchronizationClock Stretching Freescale Semiconductor 273Master-Receiver Addresses a Slave-Transmitter 13.4.2 10-bit AddressMaster-Transmitter Addresses a Slave-Receiver General Call Address ResetsByte Transfer Interrupt Address Detect Interrupt276 Freescale Semiconductor Module Initialization Slave Initialization/Application InformationModule Initialization Master Module Use12. Typical IIC Interrupt Routine Freescale Semiconductor 279 280 Freescale Semiconductor ADC Hardware Trigger Chapter Real-Time Counter S08RTCV1RTC Clock Sources RTC Modes of OperationInterrupt Vector Freescale Semiconductor 283 MCF51QE128 Block Diagram Highlighting RTC Block and PinsActive Background Mode LPO RTC Register SummaryErclk IrclkRtcsc Field Descriptions RTC Status and Control Register RtcscRTC Prescaler Divide-by values RtifRTC Modulo Register Rtcmod RTC Counter Register RtccntRtccnt Field Descriptions Rtcmod Field DescriptionsPrescaler Period RTC Operation ExampleRtcps KHz Internal Clock MHz External Clock Rtclks =Rtccnt Rtif Internal 1-kHz Clock Source RTC Clock Rtcps =0x52 0x53 0x54 0x55 0x00 0x01 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 3shows the transmitter portion of the SCI Freescale Semiconductor 297 SCI Receiver Block DiagramLbkdie SCI Baud Rate Registers SCIxBDH, SCIxBDLSCIxBDH Field Descriptions SCIxBDL Field Descriptions SCI Control Register 1 SCIxC1Loops Sciswai Rsrc Wake ILT LoopsTIE SCI Control Register 2 SCIxC2SCIxC2 Field Descriptions Tdre Rdrf Idle SCI Status Register 1 SCIxS1No parity error Framing errorParity error SCIxDSCIxS2 Field Descriptions SCI Status Register 2 SCIxS2Lbkdif Rxedgif Rxinv Rwuid BRK13 Lbkde RAF RXINV1SCIxC3 Field Descriptions SCI Control Register 3 SCIxC3Txdir TXINV1Freescale Semiconductor 305 SCI Data Register SCIxDBaud Rate Generation Send Break and Queued Idle Transmitter Functional DescriptionData Sampling Technique Receiver Functional DescriptionBreak Character Length BRK13Idle-Line Wakeup Receiver Wakeup OperationFreescale Semiconductor 309 Interrupts and Status FlagsLoop Mode Stop Mode OperationAdditional SCI Functions 15.3.5.1 8- and 9-Bit Data ModesFreescale Semiconductor 311 Single-Wire Operation312 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 Freescale Semiconductor 319 SPI Baud Rate GenerationMosi Master Data Out, Slave Data Spsck SPI Serial ClockMiso Master Data In, Slave Data Out SS Slave SelectSPI in Stop Modes Modes of OperationSPI Control Register 1 SPIxC1 SPIxC1 Field DescriptionsSPI Control Register 2 SPIxC2 Master Mode Slave ModeSS Pin Function Modfen SsoeSPI Baud Rate Register SPIxBR SPI Stop in Wait ModeSPIxC2 Register Field Descriptions Modfen Bidiroe SpiswaiSPIxBR Register Field Descriptions SPI Status Register SPIxSSppr SPRSPI Data Register SPIxD SPI Clock Formats Freescale Semiconductor 327 10. SPI Clock Formats Cpha =11. SPI Clock Formats Cpha = SPI InterruptsFreescale Semiconductor 329 Mode Fault Detection330 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 Freescale Semiconductor 337 TPM Block DiagramExtclk Signal DescriptionFreescale Semiconductor 339 TPMxCHn TPM Channel n I/O PinsExtclk External Clock Source High-True Pulse of an Edge-Aligned PWM TPMxSC Field Descriptions TPM Status and Control Register TPMxSCTOF Toie Cpwms Clksb Clksa PS2 PS1 TOFTPM-Clock-Source Selection TPM Counter Registers TPMxCNTHTPMxCNTLPrescale Factor Selection ClksbclksaTPMxCNT158 Any write to TPMxCNTH clears the 16-bit counter TPM Counter Modulo Registers TPMxMODHTPMxMODLTPMxCNT70 Any write to TPMxCNTL clears the 16-bit counter Freescale Semiconductor 343TPMxMOD158 TPM Channel n Status and Control Register TPMxCnSCTPMxMOD70 CHnF CHnIE MSnB MSnA ELSnB ELSnATPMxCnSC Field Descriptions MSnBMSnA ELSnBELSnA Mode ConfigurationMode, Edge, and Level Selection CpwmsMode, Edge, and Level Selection TPM Channel Value Registers TPMxCnVHTPMxCnVLTPMxCnV158 TPMxCnV70Freescale Semiconductor 347 CounterCounter Clock Source TPM Clock Source Selection Counter Overflow and Modulo ResetManual Counter Reset Channel Mode SelectionInput Capture Mode Output Compare Mode15. PWM Period and Pulse Width ELSnA=0 Edge-Aligned PWM ModeFreescale Semiconductor 351 Center-Aligned PWM ModeGeneral Reset OverviewDescription of Reset Operation Interrupt Local Source Description Enable Timer Overflow Interrupt TOF DescriptionDescription of Interrupt Operation Interrupt SummaryCenter-Aligned PWM Case Channel Event Interrupt DescriptionFreescale Semiconductor 355 Chapter Version 1 ColdFire Debug CF1DEBUGOEP Version 1 ColdFire Core CF1CorePST Bkgd BDCDebug Revision Summary Modes of OperationsRevision Csrhrl CSR2D1HRLCommand Type Flash BDM Command TypesCore Status Command Set BDM?BDM GO External Signal DescriptionsDebug Module Signals Description CPU 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 Apcsc Apce CPU Cstat Halt Stop Eseqc Clksw SEC Erase EnbdmXcsr CPU StateErase W Eseqc WSEC R CSR2 Reference Summary Configuration/Status Register 2 CSR2Xcsr CSR2 Syncpc IntervalCSR2 Field Descriptions Pstb Valid Data Locations Oldest to Newest PSTBWA710. CSR3 Reference Summary Configuration/Status Register 3 CSR3Pstbss Start Condition Stop ConditionBFCDIV8 BDM Address Attribute Register BaarBFC Bfcdiv DIV8 SZM TTM TMM Address Attribute Trigger Register AatrBDM memory commands Normal processor access Else Reserved Signal of the processor’s local busTrigger Definition Register TDR SZML2EA L2EDL2T L1T L1EAL2T No inversion Invert data breakpoint comparators Three bits disables the address breakpointProgram Counter Breakpoint/Mask Registers PBR0-3, Pbmr 15. PBR0 Field Descriptions Mask ResetDRc 0x08 PBR0 DRc 0x09 Pbmr17. Pbmr Field Descriptions Address Breakpoint Registers ABLR, AbhrAbhr Ablr21. Dbmr Field Descriptions Data Breakpoint and Mask Registers DBR, Dbmr19. Abhr Field Description 22. Access Size and Operand Data Location Background Debug Mode BDMAddress1 Access Size Operand Location Resulting Set of Possible Trigger Combinations23. CPU Halt Sources CPU HaltHalt Source Halt Timing Description Cpucrard =Cpucrird = Background Debug Serial Interface Controller BDC BDM Communication Details Freescale Semiconductor 385 15. BDC Host-to-Target Serial Bit Timing16. BDC Target-to-Host Serial Bit Timing Logic Freescale Semiconductor 387 BDM Command Set DescriptionsMemory Commands Miscellaneous CommandsCore Register Commands PST Trace Buffer Read CommandsCRG 24. BDM Command Code Field DescriptionsCRG CRN VBR25. BDM Command Summary BDM Command Set SummaryAckdisable AckenableReadpstb ReadcregReaddreg Writecreg SyncpcEnable host/target handshake protocol Always Available Disable host/target handshake protocol Always Available0x03 Freescale Semiconductor 3930x32 Host → Target Memory data7-0 Target → 0x36 Enter active background mode if enabled Non-intrusiveData7-0 0x3A MemoryXcsrsb 0x330x37 0x3BTarget 0x16 Memory Data15-8 Memory data7-0 0x12 Memory data7-00x12 Memory Target → Host 0x16 MemoryRead CPU control register Active Background No operation Non-intrusive0xA0+CRN Host → Target Dreg data Read debug control register Non-intrusive0x30 Address23-0 Target Memory data7-0 Target → Host0x35 0x310x39 0x50+CRN Host → Target Pstb dataRead Xcsr Status Byte Always Available Read general-purpose CPU register Active BackgroundRead CSR2 Status Byte Always Available Read CSR3 Status Byte Always AvailableWrite CPU control register Active Background Synchronize PC to PST/DDATA Signals Non-intrusive0xC0+CRN Creg data Freescale Semiconductor 4010x80+CRN Dreg data Write debug control register Non-intrusive0x10 Address23-0 Memory Data7-0 Host → targetWrite general-purpose CPU register Active Background Write Xcsr Status Byte Always Available Serial Interface Hardware Handshake ProtocolWrite CSR2 Status Byte Always Available Write CSR3 Status Byte Always AvailableFreescale Semiconductor 405 19. Target Acknowledge Pulse ACK20. Handshake Protocol at Command Level Hardware Handshake Abort ProcedureFreescale Semiconductor 407 21signal timing is not drawn to scale21. ACK Abort Procedure at the Command Level Freescale Semiconductor 409 Real-Time Debug SupportReal-Time Trace Support 26. Processor Status Encodings Enter user modePST40 Definition Instructions, generate different encodingsFreescale Semiconductor 411 Begin Execution of Taken Branch PST =0x08-0x0B PST Values Description 23. Example JMP Instruction Output in Pstb18.4.3.3 PST/DDATA Example PST Trace Buffer PstbPstbpst PstbddataProcessor Status, Debug Data Definition Instruction Operand Syntax 27. PST/DDATA Specification for User-Mode InstructionsPST/DDATA Freescale Semiconductor 415416 Freescale Semiconductor Freescale Semiconductor 417 Supervisor Instruction Set Freescale-Recommended BDM Pinout GND ResetNo Connect Freescale Semiconductor 419420 Freescale Semiconductor Changes between Rev and Rev Appendix a Revision HistoryMCF51QE128RM Rev to Rev Changes Chapter DescriptionRevision History Page How to Reach Us