Микроконтроллер Motorola 68HC11, страница 4

4-21EEPROM Block Protect (MC68HC811E2) .................................................... 4-21EEPROM Erase ............................................................................................ 4-22COP Timer Rate Select................................................................................... 5-2Reset Cause, Reset Vector, and Operating Mode ..........................................

5-4Highest Priority Interrupt Selection.................................................................. 5-8Interrupt and Reset Vector Assignments......................................................... 5-9Stacking Order on Entry to Interrupts............................................................ 5-10Input/Output Ports ........................................................................................... 6-1Parallel I/O Control .......................................................................................... 6-6Baud Rate Prescaler Selects ........................................................................ 7-10Baud Rate Selects......................................................................................... 7-10SPI Clock Rates ..............................................................................................

8-7Timer Summary............................................................................................... 9-3Timer Control Configuration ............................................................................ 9-6Timer Output Compare Actions..................................................................... 9-10Timer Prescale .............................................................................................. 9-12RTI Rates ...................................................................................................... 9-13Pulse Accumulator Timing.............................................................................

9-16Pulse Accumulator Edge Control .................................................................. 9-17Converter Channel Assignments................................................................... 10-6A/D Converter Channel Selection ................................................................. 10-8Maximum Ratings............................................................................................ A-1Thermal Characteristics ..................................................................................

A-1DC Electrical Characteristics........................................................................... A-2DC Electrical Characteristics (MC68L11E9) .................................................. A-3Control Timing .................................................................................................

A-5Control Timing (MC68L11E9)......................................................................... A-5Peripheral Port Timing................................................................................... A-11Peripheral Port Timing (MC68L11E9) .......................................................... A-12Analog-To-Digital Converter Characteristics .................................................

A-16Analog-To-Digital Converter Characteristics (MC68L11E9)......................... A-17Expansion Bus Timing................................................................................... A-18Expansion Bus Timing (MC68L11E9) ..........................................................

A-19M68HC11 E SERIESTECHNICAL DATAMOTOROLAxiLIST OF TABLES(Continued)TitleTableA-8A-8aA-9A-9aB-1B-2B-3PageSerial Peripheral Interface Timing ................................................................. A-21Serial Peripheral Interface Timing (MC68L11E9)......................................... A-22EEPROM Characteristics .............................................................................. A-25EEPROM Characteristics (MC68L11E9)...................................................... A-25Standard Device Ordering Information............................................................

B-1Custom ROM Device Ordering Information..................................................... B-3Extended Voltage Device Ordering Information (3.0 Vdc to 5.5 Vdc) ............. B-4MOTOROLAxiiM68HC11 E SERIESTECHNICAL DATASECTION 1 INTRODUCTIONThis document contains a detailed description of the M68HC11 E series of 8-bit microcontroller units (MCUs).

These MCUs all combine the M68HC11 CPU with high-performance, on-chip peripherals. The E series is comprised of many devices withvarious configurations of RAM, ROM or EPROM, and EEPROM. Several low-voltagedevices are also available. With the exception of a few minor differences, the operationof all E-series MCUs is identical. A fully static design and high-density complementarymetal-oxide semiconductor (HCMOS) fabrication process allow E-series devices tooperate at frequencies from 3 MHz to dc, with very low power consumption.1.1 Features• M68HC11 CPU• Power Saving STOP and WAIT Modes• Low-Voltage Devices Available (3.0 – 5.5 Vdc or 2.7 – 5.5 Vdc)• 0, 256, 512, or 768 Bytes of On-Chip RAM, Data Retained During Standby• 0, 12, or 20 Kbytes of On-Chip ROM or EPROM• 0, 512, or 2048 Bytes of On-Chip EEPROM with Block Protect for Security— 2048 bytes of EEPROM with selectable base address in MC68HC811E2• Asynchronous Nonreturn to Zero (NRZ) Serial Communications Interface (SCI)— Additional Baud Rates Available on MC68HC(7)11E20• Synchronous Serial Peripheral Interface (SPI)• 8-Channel 8-Bit Analog-to-Digital (A/D) Converter• 16-Bit Timer System— Three Input Capture (IC) Channels— Four Output Compare (OC) Channels— One Additional Channel, Selectable as Fourth IC or Fifth OC• 8-Bit Pulse Accumulator• Real-Time Interrupt Circuit• Computer Operating Properly (COP) Watchdog System• 38 General-Purpose Input/Output (I/O) Pins— 16 Bidirectional I/O Pins— 11 Input-Only Pins— 11 Output-Only Pins• Several Packaging Options— 52-Pin Plastic Leaded Chip Carrier (PLCC)— 52-Pin Windowed Ceramic Leaded Chip Carrier (CLCC)— 52-Pin Plastic Thin Quad Flat Pack, 10 mm X 10 mm (TQFP)— 64-Pin Plastic Quad Flat Pack (QFP)— 48-Pin Plastic Dual In-Line Package (DIP), MC68HC811E2 only— 56-Pin Plastic Dual In-Line Package, .070" Lead Spacing (SDIP)M68HC11E SERIESTECHNICAL DATAINTRODUCTIONMOTOROLA1-111.2 StructureBelow is the functional diagram of the E-series MCUs.

Differences among devices arenoted in the table.XTAL EXTALEIRQOSCINTERRUPTLOGICMODE CONTROLEEPROM(SEE TABLE)M68HC11 CPURAM(SEE TABLE)STROBE AND HANDSHAKEPARALLEL I/OSERIALCOMMUNICATIONINTERFACESCISERIALPERIPHERALINTERFACESPIVDDVSSVRHVRLTxDRxDADDRESS/DATASSSCKMOSIMISOBUS EXPANSIONADDRESSA/D CONVERTER* VPPE APPLIES ONLY TO DEVICES WITH EPROM/OTPROM.PORT EDEVICEMC68HC11E0MC68HC11E1MC68HC11E8MC68HC11E9MC68HC711E9MC68HC11E20MC68HC711E20MC68HC811E2RAM512512512512512768768256ROMÑÑ12K12KÑ20KÑÑPE7/AN7PE6/AN6PE5/AN5PE4/AN4PE3/AN3PE2/AN2PE1/AN1PE0/AN0PORT CPD5/SSPD4/SCKPD3/MOSIPD2/MISOPD1/TxDPD0/RxDPORT BSTRB/R/WSTRA/ASPORT DPORT APC7/ADDR7/DATA7PC6/ADDR6/DATA6PC5/ADDR5/DATA5PC4/ADDR4/DATA4PC3/ADDR3/DATA3PC2/ADDR2/DATA2PC1/ADDR1/DATA1PC0/ADDR0/DATA0CONTROLPB7/ADDR15PB6/ADDR14PB5/ADDR13PB4/ADDR12PB3/ADDR11PB2/ADDR10PB1/ADDR9PB0/ADDR8CONTROLPA7/PAIPA6/OC2/OC1PA5/OC3/OC1PA4/OC4/OC1PA3/OC5/IC4/OC1PA2/IC1PA1/IC2PA0/IC31ROM OR EPROM(SEE TABLE)R/WASPULSE ACCUMULATORCOPPAIOC2OC3OC4OC5/IC4/OC1IC1IC2PERIODIC INTERRUPTIC3CLOCK LOGICTIMERSYSTEMXIRQ/VPPE* RESETSTRBSTRAMODA/ MODB/LIRVSTBYEPROMÑÑÑÑ12KÑ20KÑEEPROMÑ512Ñ5125125125122048E SERIES BLOCKFigure 1-1 M68HC11 E-Series Block DiagramMOTOROLA1-2INTRODUCTIONM68HC11E SERIESTECHNICAL DATASECTION 2 PIN DESCRIPTIONS47 PE2/AN248 PE6/AN649 PE3/AN350 PE7/AN751 VRL52 VRHVSS2 MODB/VSTBY3 MODA/LIR4 STRA/AS5 E6 STRB/R/W7 EXTALM68HC11 E-series MCUs are available packaged in 52-pin PLCC, 52-pin windowedCLCC, 64-pin QFP, 52-pin thin QFP, 56-pin SDIP, and 48-pin DIP (MC68HC811E2only).

Most pins on these MCUs serve two or more functions, as described in the following paragraphs. Refer to Figure 2-1, Figure 2-2, Figure 2-3, Figure 2-4, and Figure 2-5, which show the M68HC11 E-series pin assignments for the PLCC/CLCC,QFP, and DIP packages.PE5/AN5945PE1/AN1PC1/ADDR1/DATA11044PE4/AN4PC2/ADDR2/DATA21143PE0/AN0PC3/ADDR3/DATA31242PB0/ADDR8PC4/ADDR4/DATA41341PB1/ADDR9PC5/ADDR5/DATA51440PB2/ADDR10PC6/ADDR6/DATA61539PB3/ADDR11PC7/ADDR7/DATA71638PB4/ADDR12RESET1737PB5/ADDR13* XIRQ/VPPE1836PB6/ADDR14IRQ1935PB7/ADDR15PD0/RxD2034PA0/IC33329PA5/OC3/OC1PA1/IC228PA6/OC2/OC1PA2/IC127PA7/PAI/OC132263125PD5/SSVDD3024PD4/SCKPA4/OC4/OC123PD3/MOSIPA3/OC5/IC4/OC122PD2/MISOM68HC11 E SERIES21PC0/ADDR0/DATA0PD1/TxD8146XTAL2* VPPE APPLIES ONLY TO DEVICES WITH EPROM/OTPROM.E SERIES 52-PIN PLCCFigure 2-1 Pin Assignments for 52-Pin PLCC and CLCCM68HC11 E SERIESTECHNICAL DATAPIN DESCRIPTIONSMOTOROLA2-1PA1/IC2PA2/IC1PA3/OC5/IC4/OC1NCNCPA4/OC4/OC1PA5/OC3/OC1PA6/OC2/OC1PA7/PAI/OC1VDDPD5/SSPD4/SCKPD3/MOSIPD2/MISOPD1/TxDVSS64636261605958575655545352515049M68HC11 E SERIES48474645444342414039383736353433NCPD0/RxDIRQXIRQ/VPPE*NCRESETPC7/ADDR7/DATA7PC6/ADDR6/DATA6PC5/ADDR5/DATA5PC4/ADDR4/DATA4PC3/ADDR3/DATA3PC2/ADDR2/DATA2PC1/ADDR1/DATA1NCPC0/ADDR0/DATA0XTALPE2/AN2PE6/AN6PE3/AN3PE7/AN7VRLVRHVSSVSSMODB/VSTBYNCMODA/LIRSTRA/ASESTRB/R/WEXTALNC21234567891011121314151617181920212223242526272829303132PA0/IC3NCNCNCPB7/ADDR15PB6/ADDR14PB5/ADDR13PB4/ADDR12PB3/ADDR11PB2/ADDR10PB1/ADDR9PB0/ADDR8PE0/AN0PE4/AN4PE1/AN1PE5/AN5* VPPE APPLIES ONLY TO DEVICES WITH EPROM/OTPROM.E SERIES 64-PIN QFPFigure 2-2 Pin Assignments for 64-Pin QFPMOTOROLA2-2PIN DESCRIPTIONSM68HC11 E SERIESTECHNICAL DATAPA1/IC2PA2/IC1PA3/OC5/IC4/OC1PA4/OC4/OC1PA5/OC3/OC1PA6/OC2/OC1PA7/PAI/OC1VDDPD5/SSPD4/SCKPD3/MOSIPD2/MISOPD1/TxD5251504948474645444342414012345678910111213M68HC11 E SERIES39383736353433323130292827PD0/RxDIRQXIRQ/VPPE*RESETPC7/ADDR7/DATA7PC6/ADDR6/DATA6PC5/ADDR5/DATA5PC4/ADDR4/DATA4PC3/ADDR3/DATA3PC2/ADDR2/DATA2PC1/ADDR1/DATA1PC0/ADDR0/DATA0XTAL2PE2/AN2PE6/AN6PE3/AN3PE7/AN7VRLVRHVSSMODB/VSTBYMODA/LIRSTRA/ASESTRB/R/WEXTAL14151617181920212223242526PA0/IC3PB7/ADDR15PB6/ADDR14PB5/ADDR13PB4/ADDR12PB3/ADDR11PB2/ADDR10PB1/ADDR9PB0/ADDR8PE0/AN0PE4/AN4PE1/AN1PE5/AN5* VPPE APPLIES ONLY TO DEVICES WITH EPROM/OTPROM.E SERIES 52-PIN QFPFigure 2-3 Pin Assignments for 52-Pin Thin QFPM68HC11 E SERIESTECHNICAL DATAPIN DESCRIPTIONSMOTOROLA2-3VSS156EVSSMODB/VSTBY255VRHMODA/LIR354VRLSTRA/AS453PE7/AN7E552PE3/AN3STRB/R/W651PE6/AN6EXTAL750PE2/AN2849PE5/AN591048PE1/AN147PE4/AN4PC2/ADDR2/DATA21146PE0/AN0PC3/ADDR3/DATA31245PB0/ADDR8PC4/ADDR4/DATA4XTALPC0/ADDR0/DATA0PC1/ADDR1/DATA121344PB1/ADDR9PC5/ADDR5/DATA51443PB2/ADDR10PC6/ADDR6/DATA61542PB3/ADDR11PC7/ADDR7/DATA71641PB4/ADDR12RESET1740PB5/ADDR13* XIRQ/VPPE39PB6/ADDR14IRQ181938PB7/ADDR15PD0/RxD2037PA0/IC3M68HC11 E SERIESEVSS2136PA1/IC2PD1/TxD2235PA2/IC1PD2/MISO2334PA3/OC5/IC4/OC1PD3/MOSI2433PA4/OC4/OC1PD4/SCK2532PA5/OC3/OC1PD5/SS2631PA6/OC2/OC1VDD2730PA7/PAI/OC1VSS2829EVDD* VPPE APPLIES ONLY TO DEVICES WITH EPROM/OTPROM.E SERIES 56-PIN DIPFigure 2-4 Pin Assignments for 56-Pin SDIPMOTOROLA2-4PIN DESCRIPTIONSM68HC11 E SERIESTECHNICAL DATAPA7/PAI/OC1148VDDPA6/OC2/OC1247PD5/SSPA5/OC3/OC1346PD4/SCKPA4/OC4/OC1445PD3/MOSIPA3/OC5/IC4/OC1544PD2/MISOPA2/IC1643PD1/TxDPA1/IC2742PD0/RxDPA0/IC3841IRQPB7/ADDR15940XIRQPB6/ADDR141039RESETPB5/ADDR1311PB4/ADDR1212PB3/ADDR11PB2/ADDR1038PC7/ADDR7/DATA737PC6/ADDR6/DATA61336PC5/ADDR5/DATA51435PC4/ADDR4/DATA4PB1/ADDR91534PC3/ADDR3/DATA3PB0/ADDR81633PC2/ADDR2/DATA2PE0/AN01732PC1/ADDR1/DATA1PC0/ADDR0/DATA0PE2/AN218193130XTALPE3/AN32029EXTALPE1/AN1MC68HC811E2VRL2128STRB/R/WVRH2227EVSS2326STRA/ASMODB/VSTBY2425MODA/LIR28E2 48-PIN DIPFigure 2-5 Pin Assignments for 48-Pin DIP (MC68HC811E2)2.1 VDD and VSSPower is supplied to the MCU through VDD and VSS.