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Motorola MCF5282, MCF5281 user manual External Multiplexing Operation

Models: MCF5282 MCF5281

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Functional Description

For example, four 4-input multiplexer chips can be put at the connector where the analog signals first arrive on the printed circuit board. As a result, only four analog signals need to be shielded from noise as they approach the microcontroller chip, rather than having to protect 16 analog signals. However, external multiplexer chips may introduce additional noise and errors if not properly utilized. Therefore, it is necessary to maintain low “on” resistance (the impedance of an analog switch when active within a multiplexed chip) and insert a low pass filter (R/C) on the input side of the multiplexed chip.

27.7.2.1External Multiplexing Operation

The QADC can use from one to four external multiplexer chips to expand the number of analog signals that may be converted. Up to 16 analog channels can be converted through external multiplexer selection. The externally multiplexed channels are automatically selected from the channel field of the CCW, the same as internally multiplexed channels. The QADC is configured for the externally multiplexed mode by setting the MUX bit in control register 0 (QACR0).

Figure 27-18shows the maximum configuration of four external multiplexer chips connected to the QADC. The external multiplexer chips select one of four analog inputs and connect it to one analog output, which becomes an input to the QADC. The QADC provides two multiplexed address signals, MA[1:0], to select one of four inputs. These inputs are connected to all four external multiplexer chips. The analog output of the four multiplexer chips are each connected to separate QADC inputs (ANW, ANX, ANY, and ANZ) as shown in Figure 27-18

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MCF5282 User’s Manual

MOTOROLA

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Motorola MCF5282, MCF5281 user manual External Multiplexing Operation

Contents

MCF5282 ColdFire Microcontroller User’s Manual HOW to Reach US USA/EUROPE/LOCATIONS not Listed IND IND Contents Chapter Enhanced Multiply-Accumulate Unit Emac Timing Assumptions Move Instruction Execution TimesChapter Static RAM Sram Chapter CacheColdFire Flash Module CFM Chapter Power Management Chapter System Control Module SCMClock Module Interrupt Controller ModulesSignal Descriptions Chapter Edge Port Module EportChapter Chip Select Module Chapter External Interface Module EIMChapter Synchronous Dram Controller Module Chapter DMA Controller ModuleChapter Fast Ethernet Controller FEC Chapter Programmable Interrupt Timer Modules PIT0-PIT3 Chapter Watchdog Timer ModuleChapter General Purpose Timer Modules Gpta and Gptb 20.3 Chapter DMA Timers DTIM0-DTIM3 Chapter Queued Serial Peripheral Interface Qspi ModuleChapter Uart Modules Chapter I2C InterfaceChapter FlexCAN Chapter General Purpose I/O Module Chapter Queued Analog-to-Digital Converter Qadc27.4.7 Reset Controller Module Chapter Debug SupportChapter Chip Configuration Module CCM Chapter Ieee 1149.1 Test Access Port JtagElectrical Characteristics Chapter Mechanical DataAppendix a Register Memory Map Paragraph Title Number 31.6.2 Nonscan Chain Operation 31-12Illustrations Title Number10-7 13-4 17-13 20-20 23-10 25-31 Qadc Status Register 0 QASR0 27-22 27-12 27-53 29-39WDMREG BDM Command Format 29-36 29-40 Tables Charge Pump Current and MFD in Normal Mode Operation 10-13 15-18 17-30 20-23 25-21 27-13 29-43 33-21 Timer Module AC Timing Specifications 33-24 33-22 Audience OrganizationOrganization Xlv General Information Suggested ReadingColdFire Documentation Conventions Table i. Acronyms and Abbreviated Terms Acronyms and AbbreviationsMeaning Terminology Conventions Table ii. Notational ConventionsOperand Syntax Opcode WildcardACC CCRPort Name PSTLSW MSWRevision History Table iii provides a revision history for this documentTable iii. Revision History SSTNumber Release Revision Date Substantive ChangesFrsr Liv 10.3.6/10-11 RAMBAR.’Revision Number Substantive Changes Section/PageMCF5282 Key Features Chapter OverviewMCF5282 Key Features MCF5282 Key Features MCF5282 Key Features MCF5282 Key Features MCF5282 Key Features MCF5282 Block Diagram Cache Configuration Configuration Tag Address Data Array AddressVersion 2 ColdFire Core CacheFlash SramDebug Module System Control Module External Interface Module EIMPower Management Chip SelectGeneral Input/Output Ports Interrupt Controllers INTC0/INTC1Test Access Port Uart ModulesGeneral-Purpose Timers GPTA/GPTB DMA Timers DTIM0-DTIM3Periodic Interrupt Timers PIT0-PIT3 Software Watchdog Timer Phase Locked Loop PLLReset DMA ControllerMCF5282-Specific Features MCF5282-Specific Features Processor Pipelines IAGFifo DsocProcessor Register Description User Programming ModelData Registers D0-D7 Address Registers A0-A6Stack Pointer A7 Program Counter PCCondition Code Register CCR Bits Name DescriptionEmac Programming Model Supervisor Programming ModelSystem Byte Condition Code Register CCR Status Register SRBits Supervisor/User Stack Pointers A7 and OTHERA7 Access Control Registers ACR0, ACR1 Programming ModelVector Base Register VBR Cache Control Register CacrName CPU Space Rc Written with Register Name Additions to the Instruction Set ArchitectureLocal Memory Registers ISA Revision A+ New Instructions Exception Processing OverviewInstruction Description Exception Vector Assignments Vector Stacked Program Assignment NumberS Offset Hex CounterFormat Field Encodings Exception Stack Frame Definition0x100-0x3FC Next Access Error Exception Fault Status EncodingsProcessor Exceptions FS30 DefinitionAddress Error Exception Illegal Instruction ExceptionDivide-By-Zero Privilege ViolationUnimplemented Line-F Opcode Unimplemented Line-A OpcodeDebug Interrupt RTE and Format Error Exception Fault-on-Fault HaltReset Exception Trap Instruction ExceptionVER REV MAC DIV Emac FPU MMU ISA DebugVER D0 Hardware Configuration Info Field DescriptionMAC Busw DCA Dcsiz RAM1SIZ ROM1SIZ ICA Icsiz RAM0SIZ ROM0SIZICA 4KB RAM 8KB RAM16KB RAM 32KB RAMInstruction Execution Timing Timing Assumptions10. Misaligned Operand References Move Instruction Execution TimesAddress10 Size Kbus Additional Operations CR/W 12. Move Long Execution Times 11. Move Byte and Word Execution TimesSource Destination Ax+ D16,Ax D8,Ax,Xi Xxx.wl Standard One Operand Instruction Execution Times Standard Two Operand Instruction Execution Times13. One Operand Instruction Execution Times 14. Two Operand Instruction Execution TimesStandard Two Operand Instruction Execution Times Miscellaneous Instruction Execution Times 15. Miscellaneous Instruction Execution TimesEffective Address Opcode An+ D16,An D8,An,Xn*SF Xxx.wl D16,PC D8,PC,Xn*SF16. Emac Instruction Execution Times Emac Instruction Execution TimesEffective Address Opcode An+ D16,An D8,An,X Xxx.wl #xxx Branch Instruction Execution Times ColdFire Instruction Set Architecture Enhancements17. General Branch Instruction Execution Times 18. BRA, Bcc Instruction Execution TimesOperation Assembler SyntaxAttributes Instruction FormatAssembler Syntax BYTEREV.L Dx Attributes Byte Reverse Register ByterevCondition Codes Find First One in Register Old Dx310 New Dx310Supported Starting with ISA A+ Store/Load Status Register StrldsrAssembler SyntaxSTRLDSR #data Chapter Enhanced Multiply-Accumulate Unit Emac Multiply-Accumulate UnitMultiply-Accumulate Functionality Diagram Introduction to the MACGeneral Operation Infinite Impulse Response IIR FilterFractional Alignment Motorola MAC Status Register Macsr Memory Map/Register Set1describes Macsr fields Macsr Field Descriptions Fractional Operation Mode RoundingSummary of S/U, F/I, and R/T Control Bits Operational ModesSaving and Restoring the Emac Programming Model Mask Register Mask Following code performs the Emac state restoreMULS/MULU MAC.sz Ry,RxSF,eay&,Rw Command Mnemonic Description Emac Instruction Set SummaryEmac Instruction Execution Times 3summarizes Emac unit instructionsMac Mov Data RepresentationAccumulator Mac Old Mov New MAC Opcodes Two’s Complement, Signed Fractional EquationMACSR.V = Emac Instruction Set Summary MACSR.Z = Emac Instruction Set Summary Motorola Emac Instruction Set Summary MCF5282 User’s Manual Cache Physical Organization Cache FeaturesThis chapter describes the MCF5282 cache operation Cache Physical Organization Cache Operation Interaction with Other ModulesMemory Reference Attributes Cache Coherency and InvalidationInitial Fetch Offset vs. Clnf Bits Cache Miss Fetch Algorithm/Line FillsCLNF10 Longword Address Bits Instruction Cache Operation as Defined by CACR31 CACR31 CACR10 Type of Instruction Fetch DescriptionCache Programming Model Cache Registers Memory MapCache Registers Cache Control Register CacrCenb CPD Cinv Didi Disd Invi InvdCeib DCM Dbwe DWP Eusp Clnf CenbCeib Cache Configuration as Defined by CACR31, 23 CACR31 CACR23 CACR22 Configuration DescriptionCACR23 CACR22 CACR21 CACR20 Configuration Operation Cache Invalidate All as Defined by CACR23, 22, 21External Fetch Size Based on Miss Address and Clnf Access Control Registers ACR0, ACR1Bufw BWE Between the processors local bus and the external busSram Operation Sram FeaturesSram Programming Model Sram Base Address Register Rambar PRI1 PRI2 SPVPRI1, PRI2 PRI12 Upper Bank Lower Bank PrioritySram Initialization Sram Base Address RegisterPower Management Typical Rambar Setting ExamplesSram Initialization Code Following loop initializes the entire Sram to zeroSram Programming Model Sram Programming Model MCF5282 User’s Manual Features Chapter ColdFire Flash Module CFMBlock Diagram CFM Block Diagram Memory Map CFM Array Memory MapCFM Configuration Field CFM Configuration FieldFlash Base Address Register Flashbar Address Offset from array base Size DescriptionMemory Map BA30 BA29 CFM Configuration Register Cfmcr CFM RegistersRegister Descriptions Flash registers are described in this subsectionCFM Clock Divider Register Cfmclkd Cfmcr Field DescriptionsBits Name Description Divld PRDIV8CFM Security Register Cfmsec Cfmclkd Field DescriptionsCfmsec Field Descriptions SEC150 DescriptionCfmprot Field Descriptions CFM Protection Register CfmprotProt CFM Supervisor Access Register Cfmsacc PROTECT31PROTECT2 SectorCfmsacc Field Descriptions CFM Data Access Register CfmdaccData CFM User Status Register Cfmustat Only one Cfmustat bit should be cleared at a time10. Cfmustat Field Descriptions Cbeif Ccif Pviol Accerr Blank12. Cfmcmd User Mode Commands CFM Command Register CfmcmdCommand Name Description CFM Operation Read OperationsWrite Operations Program and Erase OperationsThus the Flash state machine clock will be Setting the Cfmclkd RegisterConsider the following example for fSYS = 66 MHz Program, Erase, and Verify Sequences Flash Valid Commands 13summarizes the valid Flash user commands13. Flash User Commands Meaning Description13. Example Program Algorithm Stop Mode Flash User Mode Illegal OperationsMaster Mode Flash Security OperationBack Door Access ResetErase Verify Check Interrupt Source Interrupt Flag Local Enable Interrupts14. CFM Interrupt Sources Cbeif CbeieInterrupts MCF5282 User’s Manual Memory Map and Registers Programming ModelLow-Power Interrupt Control Register Lpicr Chip Configuration Module Memory MapMemory Map Following subsection describes the PMM registersLpicr Field Description EnbstopLow-Power Control Register Lpcr Xlpmipl SettingsXlpmipl Interrupts Level Needed to Exit Low-Power Mode Lpmd Stpmd LvdseLow-Power Modes Low-Power ModesPLL/CLKOUT Stop Mode Operation Functional DescriptionRun Mode Wait ModeDoze Mode Stop ModePeripheral Behavior in Low-Power Modes Static Random-Access Memory SramPeripheral Shut Down ColdFire CoreSdram Controller Sdramc Chip Select ModuleDMA Controller DMAC0-DMA3 Uart Modules UART0, UART1, and UART22.9 I2C Module DMA Timers DMAT0-DMAT3Queued Serial Peripheral Interface Qspi Reset Controller Interrupt Controllers INTC0, INTC1Fast Ethernet Controller FEC 2.14 I/O PortsChip Configuration Module Clock ModuleWatchdog Timer Programmable Interrupt Timers PIT0, PIT1, PIT2 and PIT3Edge Port Queued Analog-to-Digital Converter QadcGeneral Purpose Timers Gpta and Gptb FlexCANFunctional Description ColdFire Flash Module Summary of Peripheral State During Low-Power Modes CPU and Peripherals in Low-Power Modes2.25 BDM JtagBDM QadcJtag Functional Description MCF5282 User’s Manual Features OverviewSCM Register Map Memory Map and Register Definition3124 2316 158 Internal Peripheral System Base Address Register Ipsbar Register DescriptionsCache Memory Base Address Register Rambar Ipsbar Field DescriptionMemory Base Address Register Rambar Rambar Field Description BDECore Watchdog Control Register Cwcr Core Reset Status Register CrsrCrsr Field Descriptions Register Descriptions Core Watchdog Timer Delay CWT CWT Time-Out PeriodCore Watchdog Service Register Cwsr Internal Bus ArbitrationMarb SRAM1 Mpark Rambar CPU DMA EIMFEC Sdramc Overview Round-Robin ModeArbitration Algorithms Fixed Mode Fixed Timeout Prklast LckouttimeBus Master Park Register Mpark M2PEN BCR24BIT M3PRTY M2PRTY M0PRTY M1PRTYMpark Field Description System Access Control Unit Sacu FeaturesMemory Map/Register Definition Sacu Register Memory Map3128 2724 2320 1916 1512 118 PACR1 PACR2 PACR3Master Privilege Register MPR Peripheral Access Control Registers Pacr 0-PACR8PACR6 Bits Supervisor Mode User Mode 12. Peripheral Access Control Registers PACRsIpsbar Offset Name Modules Controlled UART2 QspiDTIM0 DTIM1 DTIM2 DTIM314. Gpacr Accessctrl Bit Encodings 13. Grouped PeripheralAccess Control RegisterGpacr Field Descriptions 15. Gpacr Address Space Register Space Protected Modules Protected Ipsbar OffsetGPACR0 EPORT, WDOG, PIT0-PIT3, QADC, GPTA, GptbNormal PLL Mode Modes of OperationLow-power Mode Operation 2 11 PLL ModeExternal Clock Mode Clock Module Operation in Low-power ModesBlock Diagram Clock Module Block DiagramSignal Descriptions Signal PropertiesExtal Name FunctionMemory Map and Registers Register Descriptions Synthesizer Control Register SyncrLolre MFD2 MFD1 MFD0 Locre Locen Disclk Fwkup STPMD1 STPMD0MFD20 MFDRFD Synthesizer Status Register Synsr StpmdOSC PllmodeSynsr Field Descriptions LocksClock Mode Functional DescriptionSystem Clock Modes System Clock ModesClock Operation During Reset System Clock Mode PLL OptionsSystem Clock Generation Clock Out and Clock In RelationshipsPhase and Frequency Detector PFD PLL OperationCharge Pump Current and MFD in Normal Mode Operation Charge Pump/Loop FilterVoltage Control Output VCO Multiplication Factor Divider MFDPLL Lock Detection PLL Loss of Lock Reset PLL Loss of Lock ConditionsLoss of Clock Reset Loss of Clock DetectionAlternate Clock Selection Loss of Clock SummaryLoss of Clock in Stop Mode 10. Stop Mode Operation Sheet 1Expected PLL Action 10. Stop Mode Operation Sheet 2Stop NRM ‘LC ‘LK 10. Stop Mode Operation Sheet 3‘LC NRM ‘LK 10. Stop Mode Operation Sheet 4 PLL10. Stop Mode Operation Sheet 5 Lose referenceClock ModesFunctional Description MCF5282 User’s Manual Chapter Interrupt Controller Modules 10.1 68K/ColdFire Interrupt Architecture Overview68K/ColdFire Interrupt Architecture Overview Interrupt Controller Theory of Operation Interrupt RecognitionInterrupt Prioritization Interrupt Priority Within a LevelInterrupt Vector Determination Memory Map Interrupt Controller Base AddressesInterrupt Controller Memory Map Interrupt Controller Number Base AddressInterrupt Pending Registers IPRHn, IPRLn INT Intmask Interrupt Mask Register IMRHn, IMRLnMaskall IMRLn Field Descriptions Interrupt Force Registers INTFRCHn, INTFRCLnIntfrc Interrupt Request Level Register IRLRn IRQInterrupt Acknowledge Level and Priority Register IACKLPRn Interrupt Control Register ICRnx, x = 1, 211. IACKLPRn Field Descriptions Level PRI12. ICRnx Field Descriptions Interrupt Sources13. Interrupt Source Assignment for INTC0 IIF DTIM0 CAP/REFDTIM1 CAP/REF DTIM2 CAP/REFGptb TOF PIT0 PIFPIT1 PIF PIT2 PIFSoftware and Level n Iack Registers SWIACKR, L1IACK-L7IACK 14. Interrupt Source Assignment for INTC1Prioritization Between Interrupt Controllers VectorLow-Power Wakeup Operation 10-18 Introduction Low-Power Mode OperationIpbus Low-power Mode Eport Operation Mode Exit Edge Port Module Operation in Low-power ModesInterrupt/General-Purpose I/O Pin Descriptions Registers Bits AccessEdge Port Module Memory Map Eport Pin Assignment Register Eppar Eport Data Direction Register EpddrEPPA7 EPPA5 EPPA4 EPPA3 EPPA2 EPPA1Edge Port Data Register Epdr Edge Port Interrupt Enable Register EpierEpdd Field Descriptions Edge Port Flag Register Epfr Edge Port Pin Data Register EppdrEpdr Field Descriptions Epfr Field Descriptions EPF7-EPF111-8 Chip Select Module Signals 1lists signals used by the chip select moduleChip Select Module Signals Signal DescriptionTransfer Size Port Size Byte Enables/Byte Write Enable Signal SettingsD3124 D2316 D158 D70 Chip Select Operation General Chip Select OperationExternal Boot Chip Select Operation Accesses by Matches in CSARs and DACRs12.3.1.1 8-, 16-, and 32-Bit Port Sizing BS2 BS1 BS0D1918 External Boot Chip Select Configuration D1918 Boot Device/Data Port SizeChip Select Registers Chip Select RegistersChip Select Module Registers Chip Select Address Registers CSAR0-CSAR6CSARs, -2,specify the chip select base addresses 6describes CsarbaChip Select Mask Registers CSMR0-CSMR6 7describes Csmr fieldsCSARn Field Description Csmr n Field DescriptionsChip Select Control Registers CSCR0-CSCR6 8describes CSCRn fieldsSD,UC PS1 PS0 BEM Bstr BstwCSCRn Field Descriptions No internal TA is asserted. Cycle is terminated externally12-10 ColdFire Bus Signal Summary Bus and Control SignalsSignal Name Description Clkout Edge Data Transfer Operation Bus CharacteristicsTIP Chip-Select Module Output Timing Diagram Bus Cycle ExecutionAccesses by Matches in CSCRs and DACRs Bus Cycle States Data Transfer Cycle StatesState Cycle Read Cycle MCF5282 SystemWrite Cycle Write cycle timing diagram is shown in Figure3describes the six states of a basic write cycle Fast Termination Cycles Read Cycle with Fast TerminationBack-to-Back Bus Cycles Burst CyclesAllowable Line Access Patterns A32 Longword AccessesLine Transfers Line Read Bus Cycles13shows timing when internal termination is used Line Write Bus Cycles 16. Line Write Burst 2-1-1-1, Internal/External TerminationMisaligned Operands 17shows a line burst write with one wait-state insertion19. Example of a Misaligned Longword Transfer 32-Bit Port 13-16 Chapter Signal Descriptions MCF5282 Block Diagram with Signal Interfaces Signal Name Abbreviation Function External Memory Interface MCF5282 Signal DescriptionSdram Controller Signals Signal Name Abbreviation Function Clock and Reset SignalsChip Configuration Module External Interrupt SignalsQueued Serial Peripheral Interface Qspi Signals FlexCAN Signals2C Signals Uart SignalsGeneral Purpose Timer Signals DMA Timer SignalsAnalog-to-Digital Converter Qadc Signals Debug Support SignalsTest Signals 2lists signals in alphabetical order by abbreviated namePower and Reference Signals MCF5282 Alphabetical Signal Index Abbreviation FunctionVddpll TCK MCF5282 Signals and Pin Numbers Sorted by Function Chip Configuration/Mode SelectionSecondary External Memory Interface and PortsChip Selects Sdram ControllerExternal Interrupts Port EthernetFlexCAN General Purpose Timers UARTsQueued Analog-to-Digital Converter Qadc DMA TimersDebug and Jtag Test Port Control Power Supplies Single-Chip ModeTest External Boot Mode Listing of signals that do not default to a Gpio functionPin Reset States at Reset Single-Chip Mode Signal Reset Clock and Reset Signals14.2 MCF5282 External Signals External Interface Module EIM SignalsAddress Bus A230 Data Bus D310Output Enable OE Transfer Error Acknowledge TEATransfer Acknowledge TA Read/Write R/WTransfer Start TS Transfer In Progress TIPChip Selects CS60 Transfer Size EncodingSdram Controller Signals Clock and Reset Signals Chip Configuration SignalsExternal Interrupt Signals Ethernet Module SignalsTransmit Error Etxer Collision EcolReceive Clock Erxclk Receive Data Valid ErxdvQueued Serial Peripheral Interface Qspi Signals 14.2.9 I2C Signals FlexCAN SignalsUart Module Signals General Purpose Timer Signals DMA Timer Signals Analog-to-Digital Converter Signals Debug Support Signals Breakpoint/Test Mode Select BKPT/TMS Development Serial Input/Test Data DSI/TDIDevelopment Serial Output/Test Data DSO/TDO Test Clock TclkTest Signals Debug Data DDATA30Processor Status Outputs PST30 Test TestPower and Reference Signals 14-34 Overview DefinitionsBlock Diagram and Major Components DACR0DACR1 Scas Sras Scke SDRAMCS10 DramwCommand Definition Sdram CommandsSdram Controller Operation Dram Controller Signals 2describes the behavior of Dram signals in synchronous modeMemory Map for Sdramc Registers Dram controller registers memory map is shown in TableDram Control Register DCR DCR, shown in -2,controls refresh logic4describes DCR fields DCR Field DescriptionsDram Address and Control Registers DACR0/DACR1 5describes DACRn fieldsDACRn Field Descriptions Bit15-7 Bit Associated Access Type Access Definition Dram Controller Mask Registers DMR0/DMR16describes DMRn fields DMRn Field DescriptionsGeneral Synchronous Operation Guidelines Address MultiplexingGeneric Address Multiplexing Scheme Address Pin Row Address Column AddressPins Pins Row ColumnMCF5282 Row Column 15-12 Burst Page Mode Pins MCF5282Sdram Byte Strobe Connections Interfacing ExampleBurst Read Sdram Access Burst Write Sdram Access Auto-Refresh OperationSelf-Refresh Operation Auto-Refresh OperationInitialization Sequence Self-Refresh OperationMode Register Settings 25. Sdram Example Specifications Parameter SpecificationSdram Example ClkoutSdram Interface Configuration DCR InitializationDacr Initialization 26. Sdram Hardware ConnectionsBits Name Setting Description DACRs should be programmed as shown in Figure28. Dacr Initialization Values Casl CBM ImrsDMR Initialization 29. DMR0 Initialization ValuesMode Register Initialization 30. Mode Register Initialization31. Mode Register Mapping to MCF5282 A310 MCF5282 Pins Sdram Pins Mode Register InitializationMode Register Initialization Sequence Initialization CodePrecharge Sequence Refresh Sequence15-25 15-26 Chapter DMA Controller Module DMA Module Features Channel 0 Channel 1 Channel 2 ChannelDMA Request Control Dmareqc DMA Transfer Overview DMADMA Controller Module Programming Model Memory Map for DMA Controller Module RegistersSource Address Registers SAR0-SAR3 Destination Address Registers DAR0-DAR3SAR DARByte Count Registers BCR0-BCR3 BCRDMA Control Registers DCR0-DCR3 3describes DCRn fieldsDCRn Field Descriptions BWC Sinc Ssize Dinc Dsize StartBWC Encoding BCR24BIT =4describes DSRn fields DMA Status Registers DSR0-DSR3DSR n Field Descriptions DMA Controller Module Functional Description Transfer Requests Cycle-Steal and Continuous ModesBSY DoneData Transfer Modes Dual-Address TransfersChannel Prioritization Channel Initialization and StartupProgramming the DMA Controller Module Data Transfer Auto-AlignmentTermination Bandwidth Control16-16 Chapter Fast Ethernet Controller FEC Full and Half Duplex Operation Interface Options17.2.2.1 10 Mbps and 100 Mbps MII Interface Primary operational modes are described in this sectionAddress Recognition Options 17.2.2.2 10 Mpbs 7-Wire Interface OperationInternal Loopback FEC Top-Level Functional Diagram PAD17-5 Initialization Sequence User Initialization Prior to Asserting EcretherenHardware Controlled Initialization Ecretheren De-Assertion Effect on FECMicrocontroller Initialization User Initialization After Asserting EcretherenFEC User Initialization Before Ecretheren Microcontroller InitializationMII Mode Wire Mode ConfigurationSignal Description Emac pin Network Interface OptionsFEC Frame Transmission FEC Frame Reception Ethernet Address Recognition Ethernet Address Recognition-Receive Block Decisions Hash Algorithm Ethernet Address Recognitionq-Microcode DecisionsDestination Address to 6-Bit Hash Bit DA Bit Hash Hash Decimal Hex Value17-15 Pause Frame Field Specification Full Duplex Flow ControlCollision Handling Inter-Packet Gap IPG TimeInternal and External Loopback Ethernet Error-Handling Procedure Transmission ErrorsReception Errors HeartbeatTop Level Module Memory Map Detailed Memory Map Control/Status RegistersModule Memory Map 10. FEC Register Memory MapMIB Block Counters Memory Map 11. MIB Counters Memory Map Mnemonic Description OffsetEthernet Interrupt Event Register EIR RegistersFollowing sections describe each register in detail Hberr Ieeetsqe Babr Babt GRA TXF TXB RXF RXB MII Eberr17-25 Receive Descriptor Active Register Rdar Interrupt Mask Register EimrBabr Babt GRA TXF TXB RXF RXB MII Transmit Descriptor Active Register Tdar RdesactiveEthernet Control Register ECR Etheren ResetXdesactive 16. ECR Field Descriptions MII Management Frame Register MmfrData 17. Mmfr Field Descriptions Bit Name DescriptionDispreamble Miispeed MII Speed Control Register MscrDispreamble Mibdisable Mibidle MibdisableMIB Control Register Mibc 19. Programming Examples for MscrReceive Control Register RCR MaxflFCE Bcrej Prom Miimode DRT Loop FCETfcpause Fden Transmit Control Register TCRGTS 22. TCR Field Descriptions Physical Address Low Register PalrTfcpause Physical Address High Register Paur PADDR1PADDR2 TypeOpcode/Pause Duration Register OPD Descriptor Individual Upper Address Register Iaur24. Paur Field Descriptions OpcodeDescriptor Individual Lower Address Ialr IADDR1Bits Name Descriptions IADDR2Descriptor Group Upper Address Gaur Descriptor Group Lower Address Galr27. Ialr Field Descriptions GADDR1GADDR2 Fifo Transmit Fifo Watermark Register TfwrXwmrk 30. Tfwr Field Descriptions Fifo Receive Bound Register FrbrRbound Receive Descriptor Ring Start Erdsr Fifo Receive Start Register FrsrRfstart Rdesstart Transmit Buffer Descriptor Ring Start EtsdrXdesstart 34. Etdsr Field Descriptions Receive Buffer Size Register EmrbrRbufsize Driver/DMA Operation with Buffer Descriptors Buffer DescriptorsDriver/DMA Operation with Transmit BDs Driver/DMA Operation with Receive BDs Ethernet Receive Buffer Descriptor RxBD RO1 RO236. Receive Buffer Descriptor Field Definitions Word Location Field Name DescriptionRO1 ErdsrEthernet Transmit Buffer Descriptor TxBD TO1 TO2 ABC TO117-51 17-52 Watchdog Module Operation in Low-power Modes Low-power Mode Watchdog Operation Mode ExitWatchdog timer module has no off-chip signals SignalsRefer to -2for an overview of the watchdog memory map Watchdog Timer Module Memory Map 16-bit WCR configures watchdog timer operationWatchdog Control Register WCR Watchdog Modulus Register WMR WCR Field DescriptionsWatchdog Service Register WSR Watchdog Count Register WcntrWMR Field Descriptions WC9 WC8WS9 WS8 WS7 WS6 WS5 WS4 WS3 WS2 WS1 WS0Chapter Programmable Interrupt Timer Modules PIT0-PIT3 PIT Module Operation in Low-power Modes PIT module has no off-chip signalsLow-power Mode PIT Operation Mode Exit Programmable Interrupt Timer Modules Memory Map Ipsbar Offset Access For PITx Bits AddressPIT Control and Status Register Pcsr PRE3 PRE2 PRE1 PRE0Doze Halted OVW PIE PIF RLD PREPIT Modulus Register PMR PIFPIT Count Register Pcntr Set-and-Forget Timer OperationThis subsection describes the PIT functional operation Free-Running Timer Operation Timeout SpecificationsSystem clock PIT Clock CounterInterrupt Request Flag Enable Bit Timeout Interrupt Operation4shows the interrupt request generated by the PIT PIT Interrupt RequestsChapter General Purpose Timer Modules Gpta and Gptb GPT Block Diagram Signal Description Function Reset State Pull-up Name Register BitGPTn20 PinIpsbar Offset Bits Access GPTn3SYNCn GPT Modules Memory MapGPT Input Capture/Output Compare Select Register Gptios IOSGPT Compare Force Register Gpcforc GPT Output Compare 3 Mask Register GPTOC3MGptios Field Descriptions FOCGPT Output Compare 3 Data Register GPTOC3D GPT Counter Register GptcntGPTOC3M Field Descriptions OC3DGPT System Control Register 1 GPTSCR1 Gptcnt Field DescriptionsGpten Tffca GptenGPT Toggle-On-Overflow Register Gpttov GPT Control Register 1 GPTCTL1TOV OM3 OL3 OM2GPT Interrupt Enable Register Gptie GPT Control Register 2 GPTCTL211. GPTCL1 Field Descriptions EDG3B EDG3A EDG2B EDG2AGPT System Control Register 2 GPTSCR2 13. Gptie Field DescriptionsGPT Flag Register 1 GPTFLG1 GPT Flag Register 2 GPTFLG2GPT Channel Registers GPTCn Pulse Accumulator Control Register GptpactlCcnt PAE Pamod Pedge CLK Paovi PAIPaclk Pulse Accumulator Flag Register GptpaflgPaovf Paif 19. Gptpaflg Field Descriptions Pulse Accumulator Counter Register GptpacntPacnt GPT Port Data Register Gptport GPT Port Data Direction Register Gptddr22. Gptddr Field Descriptions PorttInput Capture PrescalerOutput Compare Event Counter Mode Pulse AccumulatorGated Time Accumulation Mode General-Purpose I/O PortsPulse Accumulator OM3 OL3EDGx OMx OC3Mx Pin Data Driven Comments 23. GPT Settings and Pin FunctionsDir Function Reset 24lists the interrupt requests generated by the timerInterrupt Request Flag Enable Bit InterruptsTimer Overflow TOF GPT Channel Interrupts CnFPulse Accumulator Overflow Paovf Pulse Accumulator Input Paif20-23 20-24 Chapter DMA Timers DTIM0-DTIM3 Key Features DMA Timer Programming ModelPrescaler Capture Mode Output ModeDMA Timer Module Memory Map Reference CompareDMA Timer Mode Registers DTMRn Orri FRR CLK RSTDMA Timer Extended Mode Registers DTXMRn 2describes the DTMRn fieldsDTMRn Field Descriptions DTXMR33describes the DTXMRn fields DMA Timer Event Registers DTERnDTXMRn Field Descriptions DMA Timer Reference Registers DTRRn DMA Timer Capture Registers DTCRn4describes the DTERn fields DTERn Field DescriptionsUsing the DMA Timer Modules DMA Timer Counters DTCNnCode Example Calculating Time-Out Values T0LOOPChapter Queued Serial Peripheral Interface Qspi Module Module DescriptionQspi RAM Interface and SignalsQspiclk Qspi Input and Output Signals and Functions Signal Name Hi-Z or Actively Driven FunctionOperation Internal Bus InterfaceQspi RAM Receive RAM Relative Address Register 0x000x01 0x0FBaud Rate Selection Command RAMTransmit RAM Transfer Delays Qspiclk Frequency as Function of System Clock and Baud RateSystem Clock 66.67 MHzTransfer Length Programming Model Qspi RegistersQspi Mode Register QMR 4gives QMR field descriptionsQMR Field Descriptions Value Bits per transferQspi Delay Register Qdlyr Qspics Qmrcpol =Qmrcpha = = Qdlyrqcd Qcrcont = = Qdlyrdtl QCDQspi Wrap Register QWR 5gives Qdlyr field descriptions6gives QWR field descriptions Qdlyr Field Descriptions7describes QIR fields Qspi Interrupt Register QIRQIR Field Descriptions Qspi Data Register QDR Qspi Address Register QARAddr 8gives QCR field descriptions Command RAM Registers QCR0-QCR15QCR0-QCR15 Field Descriptions Programming Example QSPICS30Qspiclk QS2 Qspidout QS3 Qspidin QS4 QS522-17 22-18 Uart Ucts Urts Urxd UtxdSerial Module Overview Uart Module Memory Map Register DescriptionsIpsbar Offset 3124 2316 158 Uart Mode Registers 1 UMR1n ERRParity Mode Parity Type PT= 2describes UMR1n fieldsUMR1n Field Descriptions CTS3describes UMR2n fields Uart Mode Register 2 UMR2nUMR2 n Field Descriptions Uart Status Registers USRn 4describes USRn fieldsUMR2n Field Descriptions USRn Field Descriptions5describes UCSRn fields Uart Clock Select Registers UCSRnRCS TCS Uart Command Registers UCRn UCSRn Field DescriptionsRCS DtinBits Value Command Description UCR n Field DescriptionsUart Transmit Buffers UTBn Uart Receive Buffers URBnUCRn Field Descriptions Uart Input Port Change Registers UIPCRn 7describes UIPCRn fieldsUipcr n Field Descriptions COS CTSUACRs, shown in -7,control the input enable Uart Auxiliary Control Register UACRnUart Interrupt Status/Mask Registers UISRn/UIMRn 8describes UACRn fields9describes UISRn and UIMRn fields Uart Baud Rate Generator Registers UBG1n/UBG2nUisr n/UIMR n Field Descriptions Uart Output Port Command Registers UOP1n/UOP0n Uart Input Port Register UIPn10describes UIPn fields 11describes UOP1 and UOP0 fields11. UOP1/UOP0 Field Descriptions IRQ Uart Module Signal DefinitionsUcts Transmitter/Receiver Clock Source 12. Uart Module SignalsProgrammable Divider Following sections describe how to calculate baud rates Calculating Baud RatesSystem Clock Baud Rates SysclkTransmitter and Receiver Operating Modes TransmitterTherefore UBG1n = 0x00 and UBG2n = 0xD6 External Clock23-21 20. Transmitter Timing Diagram ReceiverFifo Stack 21shows receiver functional timing23-24 Local Loop-Back Mode Automatic Echo ModeLooping Modes Multidrop Mode Remote Loop-Back Mode25. Multidrop Mode Timing Diagram Bus Operation ProgrammingRead Cycles Write CyclesSetting up the Uart to Generate Core Interrupts Setting up the Uart to Request DMA ServiceInterrupt and DMA Request Initialization 13. Uart InterruptsRegister Setting Uart Module Initialization Sequence15shows the Uart module initialization sequence 14. Uart DMA Requests26. Uart Mode Programming Flowchart Sheet 1 26. Uart Mode Programming Flowchart Sheet 2 26. Uart Mode Programming Flowchart Sheet 3 26. Uart Mode Programming Flowchart Sheet 4 26. Uart Mode Programming Flowchart Sheet 5 23-36 Interface Features Chapter I2C InterfaceAcknowledge bit generation/detection Bus-busy detection IfdrIadr SCL SDA24.3 I2C System Configuration 24.4 I2C ProtocolArbitration Procedure Repeated StartClock Synchronization HandshakingClock Stretching SCL1 SCL224.5.1 I2C Address Register I2ADR 2describes I2ADR fieldsI2C Interface Memory Map I2ADR Field Descriptions24.5.2 I2C Frequency Divider Register I2FDR 3describes I2FDRICI2FDR Field Descriptions Divider24.5.3 I2C Control Register I2CR 4describes I2CR fieldsI2CR Field Descriptions IEN Iien24.5.4 I2C Status Register I2SR 5describes I2SR fieldsI2SR Field Descriptions ICF Iaas IBB IAL SRW IIF24.6 I2C Programming Examples 24.5.5 I2C Data I/O Register I2DRGeneration of Start Post-Transfer Software Response24.6.4 Generation of Stop I2SRSlave Mode Generation of Repeated StartArbitration Lost RXAK= IAAS=1SRW=1 Write24-16 Chapter FlexCAN RAM MB3 MB2 MB1 MB0 Cantx CanrxFlexCAN Memory Map 25.1.2 External SignalsFlexCAN Memory Map Can System Message BuffersMessage Buffer Structure Typical can system is shown below in FigureCommon Fields for Extended and Standard Format Frames Message Buffer Codes for Receive Buffers Common Extended/Standard Format FramesMessage Buffer Codes for Transmit Buffers Message Buffer Memory Map Fields for Extended Format FramesFields for Standard Format Frames Extended Format FramesMessage Buffers Functional OverviewIdhigh Idlow Transmit Process Receive ProcessMessage Buffer Handling Self-Received FramesTransmit Message Buffer Deactivation Serial Message Buffers SMBsReceive Message Buffer Deactivation Remote Frames Locking and Releasing Message BuffersOverload Frames Listen-Only ModeTime Stamp Configuring the FlexCAN Bit Timing Bit TimingExamples of System Clock/CAN Bit-Rate/S-Clock Freq Mhz Time-quanta/bit Value +FlexCAN Error Counters FlexCAN Initialization Sequence Low-Power Stop Mode for Power Saving Debug ModeSpecial Operating Modes Canmcr Auto-Power Save Mode InterruptsCan Module Configuration Register Canmcr Programmer’s Model8describes the Canmcr fields Stop FRZ Halt Notrdy Wakemsk Softrst FrzackCanmcr Field Descriptions StopFlexCAN Control Register 0 CANCTRL0 9describes the CANCTRL0 fields10. Transmit Pin Configuration Transmit Pin ConfigurationFlexCAN Control Register 1 CANCTRL1 11describes the CANCTRL1 fieldsPrescaler Divide Register Presdiv 12describes the Presdiv fields11. CANCTRL1 Field Descriptions SampFlexCAN Control Register 2 CANCTRL2 13describes the CANCTRL2 fields12. Presdiv Field Descriptions 13. CANCTRL2 Field DescriptionsFree Running Timer Timer 14describes the Timer fields14. Timer Field Descriptions Rx Mask RegistersReceive Mask Registers RXGMASK, RX14MASK, RX15MASK 12. Rx Mask Registers RXGMASK, RX14MASK, and RX15MASK17describes the Estat fields FlexCAN Error and Status Register Estat16. RXGMASK, RX14MASK, and RX15MASK Field Descriptions 17. Estat Field Descriptions BiterrInterrupt Mask Register Imask 18describes the Imask fieldsBUF15M BUF14M BUF13M BUF10M BUF9M BUF8MInterrupt Flag Register Iflag 19describes the Iflag fields18. Imask Field Descriptions 19. Iflag Field DescriptionsFlexCAN Receive Error Counter Rxectr FlexCAN Transmit Error Counter Txectr20describes the Rxectr fields 21describes the Txectr fieldsChapter General Purpose I/O Module MCF5282 Ports Module Block Diagram Features Sdram control Bit DMA timers Uart transmit/receiveOverview Modes of OperationExternal Signal Description MCF5282 Ports External SignalsErxer SDASCL UCTS031-24 23-16 15-8 Access Memory Map/Register DefinitionRegister Overview MCF5282 Ports Module Memory MapDdrb Ddrc Ddreh DdrelClra Clrb Clrc Clrd Clre Clrf Clrg ClrhPort Output Data Registers PORTn Port Output Data Registers 8-bitPort Data Direction Registers DDRn PORTn bits are described in TablePORTn 8-bit, 7-bit, 6-bit, and 4-bit Field Descriptions Register Bits Name DescriptionPort Data Direction Register 7-bit Port Pin Data/Set Data Registers PORTnP/SETn 10. Port Pin Data/Set Data Registers 8-bitPort Clear Output Data Registers CLRn PORTnP/SETn bits are described in TablePORTnP/SETn 8-bit, 6-bit, and 4-bit Field Descriptions PORTUAP/SETUACLRn register bits are described in Table CLRn 8-bit,7-bit, 6-bit, and 4-bit Field DescriptionsReset Values for Pbcdpar Bits Port Size Pbpa Reset Pcdpa ResetExternal Boot Port B/C/D Pin Assignment Register PbcdparPepar Field Descriptions Port E Pin Assignment Register PeparPEPA3 10. Reset Values for Pepar Bits and Fields Single chip modePfpar controls the pin function of port F75 Port F Pin Assignment Register Pfpar11. Pfpar Field Descriptions Pjpar controls the pin function of port J Port J Pin Assignment Register Pjpar12. Pjpar Field Descriptions Port SD Pin Assignment Register Psdpar Port AS Pin Assignment Register PasparPsdpar controls the pin function of port SD Paspar controls the pin function of port ASPort EH/EL Pin Assignment Register Pehlpar 14. Paspar Field DescriptionsPort QS Pin Assignment Register Pqspar Pqspar controls the pin function of port QS15. Pehlpar Field Descriptions ECOL, ERXCLK, ERXDV, ERXD0, EcrsPtcpar controls the pin function of port TC Port TC Pin Assignment Register PtcparPTCPA3 PTCPA2 PTCPA1 PTCPA0 Ptdpar controls the pin function of port TD Port TD Pin Assignment Register PtdparPTDPA3 PTDPA2 PTDPA1 PTDPA0 Port UA Pin Assignment Register Puapar Puapar controls the pin function of port UAPort Digital I/O Timing Clkout Input PIN Register PIN DataInitialization/Application Information Clkout Output Data Register Output PINChapter Queued Analog-to-Digital Converter Qadc Qadc Block Diagram Debug Mode Modes of OperationPort QA Signal Functions Port QA Analog Input SignalsPort QA Digital Input/Output Signals Port QB Signal FunctionsPort QB Analog Input Signals External Trigger Input Signals Multiplexed Address Output SignalsMultiplexed Analog Input Signals Port QB Digital I/O SignalsVoltage Reference Signals Dedicated Analog Supply SignalsDedicated Digital I/O Port Supply Signal Multiplexed Analog Input ChannelsThis subsection describes the Qadc registers Qadc Module Configuration Register QadcmcrQadc Memory Map Qadc Test Register Qadctest Port Data Registers Portqa and PortqbPort QA and QB Data Direction Register Ddrqa and Ddrqb ANZ ANY ANX ANWQadc Control Register 0 QACR0 Control RegistersThis subsection describes the Qadc control registers Qadc Control Register 0 QACR0 QACR0 Field Descriptions QPR6QPR60 Prescaler fSYS Divide-by ValuesDivisor CIE1 PIE1 SSE1 Qadc Control Register 1 QACR1CIE1 Operating Mode Queue 1 Operating ModesQadc Control Register 2 QACR2 CIE2 PIE2 SSE2 ResumeQACR2 Field Descriptions Queue 2 Operating ModesCIE2 BQ2Status Registers Qadc Status Register 0 QASR0This subsection describes the Qadc status registers MQ2128 Operating Modes27-20 Queued Analog-to-Digital Converter Qadc 27-21 QS9 QS8 CF1 PF1 CF2QS7 QS6 CWP5 CWP4 CWP3 CWP2 CWP1 CWP0 Scan Mode Queue Operation PF Asserts? 10. QASR0 Field Descriptions11. CCW Pause Bit Response CWP12. Queue Status Queue 1/Queue 2 States12. Queue Status Transition Conversion Command Word Table CCW Qadc Status Register 1 QASR1BYP IST1 IST0Non-Multiplexed Input Signals Channel Number Port Signal Name15. Input Sample Times IST10 Input Sample Times17. Multiplexed Channel Assignments and Signal Designations Multiplexed Input Signals Channel NumberResult Registers Right-Justified Unsigned Result Register RjurrLeft-Justified Signed Result Register Ljsrr Left-Justified Unsigned Result Register Ljurr18. Rjurr Field Descriptions ResultResult Coherency 27.7 Functional DescriptionExternal Multiplexing External Multiplexing Operation 18. External Multiplexing Configuration Analog Subsystem Module Version OptionsAnalog-to-Digital Converter Operation 21. Analog Input Channels19. Qadc Analog Subsystem Block Diagram Conversion Cycle TimesChannel Decode and Multiplexer Sample BufferDigital Control Subsystem ComparatorBias Successive Approximation Register SARQueue Priority Timing Examples Queue Priority22. Qadc Queue Operation with Pause Queue Priority Schemes 22. Trigger Events23. Status Bits Events23. CCW Priority Situation 24. CCW Priority Situation 26. CCW Priority Situation 28. CCW Priority Situation 30. CCW Priority Situation 32. CCW Priority Situation 34. CCW Freeze Situation 38. CCW Freeze Situation Boundary Conditions Disabled Mode Reserved ModeScan Modes Single-Scan ModesSoftware-Initiated Single-Scan Mode Externally Triggered Single-Scan Mode Externally Gated Single-Scan ModeInterval Timer Single-Scan Mode Continuous-Scan Modes Software-Initiated Continuous-Scan Mode Externally Triggered Continuous-Scan Mode Externally Gated Continuous-Scan ModePeriodic Timer Continuous-Scan Mode Qadc Clock Qclk GenerationPeriodic/Interval Timer 42. Qadc Clock Subsystem FunctionsConversion Command Word Table 43illustrates the operation of the queue structure43. Qadc Conversion Queue Operation Queued Analog-to-Digital Converter Qadc 27-61 Signal Connection Considerations Result Word TableAnalog Reference Signals Analog Power Signals45. Errors Resulting from Clipping Conversion Timing Schemes46. External Positive Edge Trigger Mode Timing with Pause 47. Gated Mode, Single Scan Timing Analog Supply Filtering and Grounding 48. Gated Mode, Continuous Scan Timing49. Star-Ground at the Point of Power Supply Origin 50. Input Signal Subjected to Negative Stress Accommodating Positive/Negative Stress ConditionsIinjn IinjpAnalog Input Considerations 52. External Multiplexing of Analog Signal Sources Analog Input Pins 53. Electrical Model of an A/D Input Signal24. External Circuit Settling Time to 1/2 LSB Settling Time for the External CircuitSource Resistance RF + Rsrc 100 Ω 10 kΩ 100 kΩ 25. Error Resulting from Input Leakage IOff Error Resulting from LeakageInterrupt Operation Interrupt Sources 26. Qadc Status Flags and Interrupt SourcesQueue Queue Activity Status Interrupt Flag PF1 PIE1Chapter Reset Controller Module Reset Controller Signal Properties RstiRsto Name Direction InputReset Control Register RCR Reset Controller Memory MapReset Status Register RSR LvdfLvdie Soft WDR PORRSR Field Descriptions WDRReset Sources Power-On ResetReset Source Summary Source TypeExternal Reset Watchdog Timer ResetLoss-of-Clock Reset Loss-of-Lock ResetReset Control Flow Reset Control Flow Concurrent Resets Synchronous Reset RequestsInternal Reset Request Power-On Reset/Low-Voltage Detect ResetReset Status Flags 28-12 Debug module is shown in Figure Processor/Debug Module InterfaceSignal Description Debug Module SignalsProcessor Status Encoding Real-Time Trace SupportPST30 Definition Hex Begin Execution of Taken Branch PST = PST30 Definition Hex BinaryClkout PST DdataAatr AblrAbhr CSRRevision a Shared Debug Resources BDM/Breakpoint RegistersRev. a Shared BDM/Breakpoint Hardware DRc4-0 Register Name Abbreviation Initial StateAddress Attribute Trigger Register Aatr 5describes Aatr fieldsAatr Field Descriptions TMMAddress Breakpoint Registers ABLR, Abhr Address Breakpoint Registers ABLR, AbhrConfiguration/Status Register CSR 6describes Ablr fields7describes Abhr fields Ablr Field Description8describes CSR fields CSR Field DescriptionsData Breakpoint/Mask Registers DBR, Dbmr IPI9describes DBR fields Program Counter Breakpoint/Mask Registers PBR, Pbmr10describes Dbmr fields Trigger Definition Register TDR 12describes PBR fields13describes Pbmr fields 12. PBR Field Descriptions14describes TDR fields 14. TDR Field DescriptionsBackground Debug Mode BDM CPU HaltEdum Eduu29-17 Clkout Dsclk DSI BDM Serial InterfaceDSO Receive Packet Format Transmit Packet Format15describes receive BDM packet fields 16describes transmit BDM packet fields17. BDM Command Summary BDM Command SetSection Command ColdFire BDM Command Format 18describes BDM fieldsExtension Words as Required 18. BDM Field DescriptionsCommand Sequence Diagrams 16. Command Sequence DiagramCommand Sequence Command Set DescriptionsRead A/D Register RAREG/RDREG Write A/D Register WAREG/WDREG Read Memory Location Read21. Read Command/Result Formats 22. Read Command Sequence23. Write Command Format Write Memory Location WriteOperands are sent as 16 and 32 bits, respectively Set is returned if a bus error occursDump Memory Block Dump 25. Dump Command/Result Formats 26. Dump Command Sequence Fill Memory Block Fill27. Fill Command Format 28. Fill Command SequenceResume Execution GO No Operation NOPRc encoding Read Control Register Rcreg19. Control Register Map BDM Accesses of the Stack Pointer Registers A7 SSP, USP BDM Accesses of the Emac Registers35. Wcreg Command/Result Formats Write Control Register WcregRead Debug Module Register Rdmreg 20shows the definition of DRc encoding20. Definition of DRc Encoding-Read Write Debug Module Register WdmregDRc40 Debug Register Definition Mnemonic Initial State Real-Time Debug Support Theory of Operation21. DDATA30/CSRBSTAT Breakpoint Response Breakpoint StatusEmulator Mode Concurrent BDM and Processor Operation 22. PST/DDATA Specification for User-Mode Instructions Processor Status, Ddata DefinitionUser Instruction Set Instruction Operand Syntax29-41 29-42 23. PST/DDATA Specification for MAC Instructions 24. PST/DDATA Specification for Supervisor-Mode Instructions Supervisor Instruction SetReset DSI Motorola-Recommended BDM PinoutGND Dsclk GND PST3 PST2 PST1 PST0 DDATA3 DDATA2 DDATA1 DDATA029-46 Chapter Chip Configuration Module CCM Single-Chip Mode Chip Configuration Module Block DiagramSignal Descriptions 30.4.3 D2624, 21, 1916 Reset Configuration Override1provides an overview of the CCM signals RconWrite-Once Bits Read/Write Accessibility Configuration Read/Write AccessChip Configuration Register CCR Following subsection describes the CCM registersSzen BMTReset Configuration Register Rcon BootpsRcsc Rpllsel Rpllref RcscRcsc Chip Select Configuration Bootps Port Size ConfigurationChip Select Configuration Boot Port SizeChip Identification Register CIR Reset ConfigurationPIN PRN Reset Configuration Pin States During Reset 10. Configuration During ResetClock Mode Chip Mode SelectionD2524 Boot Device Selection Output Pad Strength ConfigurationClock Mode Selection 11. Chip Configuration Mode Selection13. Clock Mode Selection Chip Select ConfigurationCCM does not generate interrupt requests Chapter Ieee 1149.1 Test Access Port Jtag Jtag Block Diagram External Signal Description 31.3.1 Detailed Signal DescriptionJtagen Jtag Enable Pin Function Selected31.3.1.3 TMS/BKPT Test Mode Select / Breakpoint TRST/DSCLK Test Reset / Development Serial ClockSignal State to the Disable Module Tclk Test Clock InputMemory Map/Register Definition Memory MapInstruction Shift Register IR Idcode RegisterBypass Register Jtagcfmclkdiv RegisterTestctrl Register Boundary Scan RegisterJtag Module TAP ControllerJtag Instructions 5describes public and private instructionsJtag Instructions Instruction IR30 Instruction SummaryIdcode Instruction External Test Instruction ExtestSAMPLE/PRELOAD Instruction Enabletestctrl Instruction Lockoutrecovery InstructionTestleakage Instruction Highz InstructionInitialization/Application Information RestrictionsClamp Instruction Bypass InstructionNonscan Chain Operation Chapter Mechanical Data Pinout MCF5282 Pinout 256 MapbgaMapbga Pin Pin Functions MCF5282 Signal Description by Pin NumberSecondary Tertiary PG4 PG3PG2 PF4PUA1 VDD GPTB0GPTA0 PQA3 ETRIG1 VRH VDD Vssa VSSPQA0 MA0 VDD Vdda PUA3 VSS Xtal JtagenGPTB2 PQS5Ordering Information Motorola Part Description Speed TemperatureOrderable Part Numbers 32-8 Maximum Ratings Rating Symbol Value UnitAbsolute Maximum Ratings1 Rating Symbol HBMThermal Characteristics Thermal CharacteristicsCharacteristic Symbol Value Unit 2lists thermal resistance valuesDC Electrical Specifications DC Electrical Specifications1Characteristic Symbol Min Max Unit Solving equations 1 and 2 for K givesWait Doze Stop Phase Lock Loop Electrical Specifications PLL Electrical SpecificationsQadc Electrical Characteristics Qadc Electrical Specifications OperatingParameter Symbol Min Max Unit Qadc Absolute Maximum RatingsParameter Symbol Min IOH = TBDFlash Memory Characteristics Qadc Conversion Specifications OperatingSgfm Flash Program and Erase Characteristics Num Parameter Symbol Min Max UnitSgfm Flash Module Life Characteristics External Interface Timing Characteristics10. Processor Bus Input Timing Specifications Processor Bus Output Timing Specifications 11. External Bus Output Timing SpecificationsName Characteristic Symbol Min Max Unit Control Outputs Timings listed in -10are shown in FigureData Outputs Read/Write Internally Terminated Timing Read Bus Cycle Terminated by TA Read Bus Cycle Terminated by TEA Symbol Min Max Unit Sras Scas Dramw13. Gpio Timing1 33.9 General Purpose I/O TimingSras SCAS1 Dramw Reset and Configuration Override Timing 14. Reset and Configuration Override Timing33.11 I2C Input/Output Timing Specifications 15. I2C Input Timing Specifications between SCL and SDANum Characteristic Min Max Units Clkout Rsti RstoFast Ethernet AC Timing Specifications 16. I2C Output Timing Specifications between SCL and SDAMII Receive Signal Timing ERXD30, ERXDV, ERXER, and Erxclk MII Transmit Signal Timing ETXD30, ETXEN, ETXER, Etxclk17. MII Receive Signal Timing Num Characteristic Min Max UnitMII Async Inputs Signal Timing Ecrs and Ecol 19lists MII asynchronous inputs signal timing18. MII Transmit Signal Timing 19. MII Async Inputs Signal TimingMII Serial Management Channel Timing Emdio and Emdc 20. MII Serial Management Channel TimingDMA Timer Module AC Timing Specifications Qspi Electrical Specifications21lists timer module AC timings 22lists Qspi timingsJtag and Boundary Scan Timing 23. Jtag and Boundary Scan Timing17. Test Access Port Timing 16. Boundary Scan Jtag Timing24. Debug AC Timing Specification Debug AC Timing SpecificationsClkout VIL 20shows real-time trace timing for the values in Table 20. Real-Time Trace AC TimingTable A-1. CPU Space Register Memory Map Address Name Mnemonic SizeACR0 ACR1Table A-2. Module Memory Map Overview Address Module SizeI2C QadcTable A-3. Register Memory Map Address Name Mnemonic Size SCM RegistersSdramc Registers Chip Select RegistersDMA Registers Uart Registers UISR1 UIMR1UBG21 UIP01I2C Registers DMA Timer RegistersQspi Registers Interrupt Controller Ipsbar + 0xC56 SWACKR0 IPRH1IPRL1 IMRH1Global Interrupt Acknowledge Cycle Registers FEC RegistersGpio Registers Portas PortqsPortsd PorttcPortap Seta Ipsbar +Portbp Setb Ipsbar +Clra ClrfClrg ClrasClock Module Registers Edge Port RegistersWatchdog Timer Registers General Purpose Timer a Registers Qadc RegistersGeneral Purpose Timer B Registers FlexCAN Registers Flash Registers MCF5282 User’s Manual Index Index-2 Index-3 Index-4 Index-5 Index-6 Index-7 Index-8 Index-9 Index-10 Index-11 Index-12 Index-13 Index-14 Index-15 Index-16