2016 D68HC11E 8-bit Microcontroller v. 1.06 COMPANY OVERVIEW ♦ Digital Core Design is a leading IP Core provider and a System-on-Chip design house. The company was founded in 1999 and since the very beginning has been focused on IP Core architecture improvements. Our innovative, silicon proven solutions have been employed by over 300 customers and with more than 500 hundred licenses sold to companies like Intel, Siemens, Philips, General Electric, Sony and Toyota. Based on more than 70 different architectures, starting from serial interfaces to advanced microcontrollers and SoCs, we are designing solutions tailored to your needs. ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ Pin-out and memory interface identical to the MC68HC11E Microcontrollers Optional enhanced memory interface with Demultiplexed Address/Data Bus to allow easy integration with external memories. Interrupt Controller 20 interrupt sources 17 priority levels Two power saving modes: STOP, WAIT Fully synthesizable, static synchronous design with no internal tri-states No internal reset generator or gated clock Scan test ready DELIVERABLES ♦ Source code: ● ● ● IP CORE OVERVIEW The document contains a brief description of the D68HC11E core functionality. The D68HC11E is an advanced 8-bit MCU IP Core, with highly sophisticated, on-chip peripheral capabilities, fully compatible with the 68HC11E industry standard. In the standard configuration, the core has integrated on-chip major peripheral functions. An asynchronous serial communications interface (SCI) and a separate synchronous serial peripheral interface (SPI), are included. The main 16-bit, freerunning timer system has three input capture and five output-compare lines and a real-time interrupt function. An 8-bit pulse accumulator subsystem can count external events or measure external periods. Self-monitoring on-chip circuitry is included to protect the D68HC11E against system errors. A computer operating properly (COP) watchdog system protects against software failures. An illegal opcode detection circuit provides a non-maskable interrupt, if illegal opcode is detected. Two software-controlled power-saving modes - WAIT and STOP are available, to conserve additional power. These modes make the D68HC11E IP Core especially attractive for automotive and battery-driven applications. The D68HC11E has a built-in real time TM on-chip hardware debugger - DoCD , allowing easy software debugging and validation. The D68HC11E is fully customizable - it is delivered in the exact configuration to meet users’ requirements. It includes fully automated test bench with complete set of tests, allowing easy package validation at each stage of SoC design flow. CPU FEATURES ♦ ♦ Software compatible with industry standard 68HC11E Cycle compatible with the original implementation ♦ VHDL Source Code or/and VERILOG Source Code or/and Encrypted, or plain text EDIF VHDL & VERILOG test bench environment ● ● ● ♦ Active-HDL automatic simulation macros ModelSim automatic simulation macros Tests with reference responses Technical documentation ● ● ● ♦ ♦ ♦ Installation notes HDL core specification Datasheet Synthesis scripts Example application Technical support ● ● IP Core implementation support 3 months maintenance ● ● Delivery of the IP Core and documentation updates, minor and major versions changes Phone & email support DESIGN FEATURES ♦ ♦ ♦ One global system clock Synchronous reset All asynchronous input signals are synchronized before internal use LICENSING Comprehensible and clearly defined licensing methods without royalty-per-chip fees make use of our IP Cores easy and simple. Single-Site license option – dedicated to small and middle sized companies, which run their business in one place. Multi-Site license option – dedicated to corporate customers, who operate at several locations. The licensed product can be used in selected company branches. In all cases the number of IP Core instantiations within a project and the number of manufactured chips are unlimited. The license is royalty-per-chip free. There are no restrictions regarding the time of use. 1 Copyright © 1999-2016 DCD – Digital Core Design. All Rights Reserved. All trademarks mentioned in this document are the property of their respective owners. ● ● ● There are two formats of the delivered IP Core: VHDL or Verilog RTL synthesizable source code called HDL Source code ● FPGA EDIF/NGO/NGD/QXP/VQM called Netlist PERIPHERALS ● ♦ The peripherals listed below are implemented in a standard configuration of D68HC11E. ♦ TM DoCD ● ● ● ● ♦ ♦ ♦ 16-bit Compare/Capture Unit ● ● ● ● ● ● ● ♦ Two major modes of operation Simple event counter Gated time accumulation Clocked by internal source or external pin SPI – Master and Slave Serial Peripheral Interface ● ● ● ● ♦ Three independent input-capture Five output-compare channels Events capturing Pulses and digital signals generation Gated timers Sophisticated comparator Pulse width modulation and measuring 8-bit Pulse accumulator ● ● ● ● ♦ 16 bit free running counter Four stage programmable prescaler Real Time Interrupt Software selectable polarity and phase of serial clock SCK System errors detection Allows operation from a wide range of system clock frequencies (built-in 5-bit timer) Interrupt generation Full-duplex UART - SCI ● ● ● ● ● ● ● Standard non-return-to-zero format 8 or 9 bit data transfer Integrated baud rate generator Noise, Overrun and Framing error detection IDLE and BREAK characters generation Wake-up block to recognize UART wake-up from IDLE condition Three SCI related interrupts OPTIONAL PERIPHERALS Optional peripherals (not included in the presented D68HC11E Microcontroller Core) are also available. The optional peripherals can be implemented upon customer’s request. ♦ ♦ ♦ PWM – Pulse Width Modulation Timer/Counter with up to four 8-bit or two 16-bit PWM channels Memory extension unit and Chip select I2C Master & Slave bus controllers ● ● Master operation Multi-master systems supported ♦ FADD, FSUB - addition, subtraction FMUL, FDIV- multiplication, division FSQRT- square root FUCOM - compare FCHS - change sign FABS - absolute value Floating-Point Math Coprocessor (DFPMU) - IEEE754 standard single precision real, word and short integers ● ● ● ● ● ● ● ● Dedicated vector and interrupt priority for each interrupt source Main16-bit timer/counter system ● ● ● ♦ ♦ I/O Ports Interrupt Controller ● Floating-Point Arithmetic Coprocessor (DFPAU) IEEE-754 standard single precision ● ● ● ● ● ● On-Chip Debugger Processor execution control Read, write all processor contents Hardware execution breakpoints Three wire communication interface Performs arbitration and clock synchronization Interrupt generation Supports speed up to 3,4Mb/s (standard, fast & HS modes) Allows operation from a wide range of clock frequencies (built-in 8-bit timer) User-defined timing FADD, FSUB- addition, subtraction FMUL, FDIV- multiplication, division FSQRT- square root FUCOM- compare FCHS - change sign FABS - absolute value FSIN, FCOS- sine, cosine FPTAN, FPATAN- tangent, arcs tangent Additional special internal interrupt dedicated for DFPAU or DFPMU UNITS SUMMARY Control Unit - Performs the core synchronization and data flow control. This module manages execution of all instructions. The Control Unit also manages execution of STOP instruction and waking the processor up from the STOP mode. Opcode Decoder - Performs an instruction opcode decoding and the control functions for all other blocks. ALU - Arithmetic Logic Unit performs the arithmetic and logic operations, during execution of an instruction. It contains accumulator (A, B), Condition Code Register (CCREG), Index registers X, Y and related logic, like arithmetic unit, logic unit, multiplier and divider. Bus Controller – Program Memory, Data Memory & SFR’s (Special Function Register) interface - controls access into the program and data memories and special registers. It contains Program Counter (PC), Stack Pointer (SP) register, and related logic. Interrupt Controller - D68HC11E extended IC has implemented 17-level interrupt priority control. The interrupt requests may come from external pins (IRQ and XIRQ), as well as from particular peripherals. The D68HC11E peripheral systems generate maskable interrupts, which are recognized only, if the global interrupt mask bit (I) in the CCR, is cleared. Maskable interrupts are prioritized according to default arrangement, established during reset. However, any source may be elevated to the highest maskable priority position, by using HPRIO register. When 2 Copyright © 1999-2016 DCD – Digital Core Design. All Rights Reserved. All trademarks mentioned in this document are the property of their respective owners. interrupt condition occurs, an interrupt status flag is set to indicate the condition. Timer, Compare Capture & COP Watchdog – This timer system is based on a free-running, 16-bit counter, with a 4-stage programmable prescaler. A timer overflow function allows software to extend the timing capability of the system, beyond the 16-bit range of the counter. Three independent inputcapture functions are used, to automatically record the time, when a selected transition is detected at a respective timer input pin. Five output-compare functions are included for generating output signals or for timing software delays. Since the input-capture and output-compare functions may not be familiar to all users, these concepts are explained in greater detail. A programmable periodic interrupt circuit called RTI is tapped off of the main 16-bit timer counter. Software can select one of four rates for the RTI, which is most commonly used to pace the execution of software routines. The COP watchdog function is loosely related to the main timer in that the clock input to the COP system (clk*217) is tapped off the free-running counter chain. The timer subsystem involves more registers and control bits, than any other subsystem on the MCU. Each of the three input-capture functions has its own 16-bit time capture latch (input-capture register) and each of the five output-compare functions has its own 16-bit compare register. All timer functions, including the timer overflow and RTI, have their own interrupt controls and separate interrupt vectors. Additional control bits permit software, to control the edge(s) that trigger each input-capture function and the automatic actions that result from output-compare functions. Although hardwired logic is included to automate many timer activities, this timer architecture is mainly a software-oriented system. This structure is easily adaptable to a very wide range of applications, although it is not as efficient, as a dedicated hardware for some specific timing applications. SCI - The SCI is a full-duplex UART type asynchronous system, using standard non return to zero (NRZ) format: 1 start bit, 8 or 9 data bits and a 1 stop bit. The D68HC11E resynchronizes the receiver bit clock on all one to zero transitions in the bit stream. The differences in baud rate between the sending device and the SCI are not as likely to cause reception errors. Three logic samples are taken near the middle of data bit time and majority logic decides the sense for the bit. The receiver also has the ability to enter a temporary standby mode (called receiver wakeup), to ignore messages intended for a different receiver. Logic automatically wakes the receiver up, in time to see the first character of the next message. This wakeup feature greatly reduces CPU overhead in multi-drop SCI networks. The SCI transmitter can produce queued characters of idle (whole characters of all logic 1) and break (whole characters of all logic 0). In addition to the usual Transmit Data Register Empty (TDRE) status flag, this SCI also provides a Transmit Complete (TC) indication that can be used in applications with a modem. SPI Unit – it’s a fully configurable master/slave Serial Peripheral Interface, which allows user to configure polarity and phase of Serial Clock Signal SCK. It allows the microcontroller, to communicate with serial peripheral devices. It is also capable of interprocessor communications, in a multi-master system. A serial clock line (SCK), synchronizes shifting and sampling of the information on the two independent serial data lines. SPI data are simultaneously transmitted and received. SPI system is flexible enough, to interface directly with numerous standard product peripherals, from several manufacturers. Data rates as high as CLK/8. Clock control logic allows a selection of clock polarity and a choice of two fundamentally different clocking protocols, to accommodate most available synchronous serial peripheral devices. When the SPI is configured as a master, software selects one of four different bit rates for the serial clock. SPI automatically drives slave select outputs SSO[7:0] and address SPI slave device, to exchange serially shifted data. Error-detection logic is included, to support interprocessor communications. A write-collision detector indicates, when an attempt is made to write data to the serial shift register, while a transfer is in progress. A multiple-master mode-fault detector automatically disables SPI output drivers if more than one SPI devices simultaneously attempts to become bus master. Pulse Accumulator – This system is based on an 8-bit counter and can be configured to operate as a simple event counter or for gated time accumulation. Unlike the main timer, the 8-bit pulse accumulator counter can be read or written at any time (the 16-bit counter in the main timer cannot be written). Control bits allow the user to configure and control the pulse accumulator subsystem. Two maskable interrupts are associated with the system, each having its own controls and interrupt vector. The PAI pin, associated with the pulse accumulator, can be configured to act as a clock (event counting mode) or as a gate signal, to enable a free-running E divided by 64 clock to the 8-bit counter (gated time accumulation mode). The alternate functions of the pulse accumulator input (PAI) pin, present some interesting application possibilities. I/O Ports - All ports are 8-bit general-purpose bidirectional I/O system. The PORTA, PORTB, PORTC, PORTD, PORTE data registers, have their corresponding data direction registers DDRA, DDRC, DDRD to control ports data flow. It assures, that all D68HC11’s ports have full I/O selectable registers. Writes to any ports pins cause data to be stored in the data registers. If any port pins are configured as output, then data registers are driven out of those 3 Copyright © 1999-2016 DCD – Digital Core Design. All Rights Reserved. All trademarks mentioned in this document are the property of their respective owners. BUS a bntroller pins. Reads from port pins, configured as input, causes that input pin to be read. If port pins is configured as output, during read data register is read. Writes to any ports pins not configured as outputs, do not cause data to be driven out of those pins, but the data is stored in the output registers. Thus, if the pins later become outputs, the last data written to port will be driven out the port pins. ADCCTRL – External ADC Controller is used as interface between D68HC11E internal registers and external serial/parallel ADC converter. This module has several different options, so its details are described in separate document. EEPROMCTRL – External Serial EEPROM Controller. Manages data exchange between D68HC11E and external EEPROM. During initialization copies contents of the whole external EEPROM, to internal EEPRAM (EEPROM Mirror implemented in standard parallel RAM). This module has several different options, so its details are described in separate document. DoCDTM - Debug Unit – it’s a real-time hardware debugger, which provides debugging capability of a whole SoC system. Unlike other on-chip debuggers, DoCD™ provides non-intrusive debugging of running application. It can halt, run, step into or skip an instruction, read/write any contents of microcontroller, including all registers, internal, external, program memories, all SFRs, including user defined peripherals. Hardware breakpoints can be set and controlled on program memory, internal and external data memories, as well as on SFRs. Hardware breakpoint is executed, if any write/read occurs at particular address, with certain data pattern or without pattern. The DoCDTM system includes threewire interface and complete set of tools, to communicate and work with core in real time debugging. It is built as scalable unit and some features can be turned off by the user, to save silicon and reduce power consumption. When debugger is not used, it is automatically switched to power save mode. Finally, when debug option is no longer used, whole debugger is turned off. The separate CLKDOCD clock line allows the debugger to operate while the CPU is in STOP mode and the major clock line CLK is stopped. PINS DESCRIPTION PIN clk reset cmf moda_lir modb stra_as strb_rw irq xirq TYPE input input input in/out input in/out output input input e output portx Internal E Cycle output Ports I/O pins shared with peripheral in/out functions D68HC11 Microcontroller pins adcdatai adcdatao adcclock adccs input Serial ADC data input output Serial Data output output Serial Clock to external ADC output Chip Select to external ADC Optional external ADC Controller pins esi eso esck ecs input Serial EEPROM Data input output Serial EEPROM Data output output Serial EEPROM Clock output EEPROM Chip Select Optional external EEPROM controller pins clkdocd docddatai docddatao docdclk input DoCDTM clock input input DoCDTM serial Data input output DoCDTM Serial Data Output output DoCDTM Serial Clock Output DoCD debugger interface pins BLOCK DIAGRAM clk reset cmf Opcode Decoder halt moda_lir modb e Control Unit irq xirq Memory controller porta portb I/O Ports Main Timer Pulse Accumulator SCI Unit ADC Controller adcdatai adcdataoi adcclock adccs SPI Unit EEPROM Controller esi eso esck ecs ALU DoCD Debugger DESCRIPTION Global system clock Power on reset vector fetch Clock monitor fail vector fetch Mode A input LIR output Mode B input Strobe A and Address strobe Strobe B and RW output Interrupt input Non-maskable interrupt input portd porte stra_as strb_rw Interrupt Controller Watchdog Timer portc TM clkdocd docddatai docddatao docdclk 4 Copyright © 1999-2016 DCD – Digital Core Design. All Rights Reserved. All trademarks mentioned in this document are the property of their respective owners. D68HC11 AND DF6811 MICROCONTROLLERS OVERVIEW - - - - DF6805 4.1 64k 64k - - - * 1/1* 1* D68HC05 1.0 64k 64k - - - * 1/1* 1* DF6808 3.2 64k 64k - - - * 2/2* 1* D68HC08 1.0 64k 64k - - - * 2/2* D68HC11E 1.0 64k 64k - 1* * D68HC11F 1.0 64K 64K - 1* D68HC11KW1 1.0 1M 1M 1* D68HC11K 1.0 1M 1M DF6811E 4.4 64k 64k - DF6811F 4.4 64k 64k - DF6811K 4.4 1M 1M - - - - - * 4 + 6 700 * + * -* - 4 - 6 700 * 4 * - 8 900 1* * 4 * - 8 900 5/3* 1* * 4 12 000 * 5/3* 1* * 7 13 500 * 13/6* 3* * 10 21 000 1* * 5/3* 2* * 7 16 000 1* * 5/3* 1* * 4 * * * 12 000 1* * 5/3* 1* * 4 * * * 13 000 1* * 5/3* 2* * 7 Size – ASIC gates - DoCD Debugger Interface for additional SFRs Main Timer System - Pulse accumulator Compare\Capture - Watchdog Timer READY for Prg. And Data memories 64k 64k 64k SPI M/S Interface Data Pointers 64k 64k 64k I\O Ports Paged Data Memory space 1 1 1 SCI (UART) Physical Linear memory space D6802 D6803 D6809 Design Motorola Memory Expansion Logic Real Time Interrupt Speed acceleration The main features of each DF68XX family member have been summarized in the table below. It gives a brief member characteristic, helping you to select the most suitable IP Core for your application. You can specify your own peripheral set (including listed above and others) and request the core modifications. 3 900 6 000 9 000 16 000 D68HCXX family of High Performance Microcontroller Cores + optional * configurable CONTACT Digital Core Design Headquarters: Wroclawska 94, 41-902 Bytom, POLAND e-mail: tel.: fax: firstname.lastname@example.org 0048 32 282 82 66 0048 32 282 74 37 Distributors: Please check: http://dcd.pl/sales 5 Copyright © 1999-2016 DCD – Digital Core Design. All Rights Reserved. All trademarks mentioned in this document are the property of their respective owners.