The D68HC11K is a synthesizable soft IP Core Microcontroller, fully compatible with the industry standard. It can be used as a direct replacement for the following Motorola MC68HC11K microcontrollers:

  • MC68HC11K0
  • MC68HC11K1
  • MC68HC11K4
  • MC68HC711K4
  • MC68HC11KS2
  • MC68HC711KS2

In a standard configuration of the core, major peripheral functions are integrated on-chip. An asynchronous serial communication interface (SCI) and a separate synchronous serial peripheral interface (SPI) are included. The main 16-bit, free-running timer system, contains input capture and output-compare lines and a real-time interrupt function. An 8-bit pulse accumulator subsystem can count external events or measure external periods. The memory expansion unit (with six address extension lines) allows up to sixteen 32K byte banks of external memory to be addressed in either of two bank windows. The MEU extension of memory space can be up to 1MB. Self-monitoring on-chip circuitry is included, to protect the D68HC11K against system errors. The Computer Operating Properly (COP) watchdog system protects against software failures. An illegal opcode detection circuit provides a non-maskable interrupt if an illegal opcode is detected. Two software-controlled power-saving modes – WAIT and STOP are available, to preserve additional power. These modes make the D68HC11K IP Core especially attractive for automotive and battery-driven applications. The D68HC11K Microcontroller Core can be equipped with an ADC Controller, allowing the use of an external ADC Controller with standard ADC software. The ADC Controller makes external ADCs visible as internal ADCs in original 68HC11K Microcontrollers. The D68HC11K is fully customizable – it is delivered in the exact configuration to meet your requirements. There is no need to pay extra for unused features and wasted silicon. The D68HC11K comes with a fully automated test bench and a complete set of tests, allowing easy package validation at each stage of the SoC design flow. Each DCD’s DF68XX and D68HC11X Core has built-in support for DCD’s Hardware Debug System called DoCD™. It is a real-time hardware debugger that provides debugging capability of a whole System-on-Chip (SoC). Unlike other on-chip debuggers, the DoCD™ provides non-intrusive debugging of a running application. It can halt, run, step into or skip an instruction, and read/write any contents of the microcontroller, including all registers and SFRs, including user-defined peripherals, data, and program memories.



  • Altera / Intel,
  • Xilinx / AMD,
  • Lattice,
  • Microsemi / Microchip,
    and others.
  • TSMC
  • UMC
  • SK Hynix
    and others.

Key features

  • Cycle compatible with original implementation
  • Software compatible with 68HC11K industry standard
  • I/O Wrapper, making it pin-compatible core
  • SFR registers remapped to any 4KB memory page
  • Two power saving modes: STOP, WAIT
  • Fully synthesizable
  • Static synchronous design
  • No internal tri-states
  • Scan test ready
  • USB, Ethernet, I2C, SPI, UART, CAN, LIN, HDLC, Smart Card interfaces available
IP Core Architecture type Memory space DoCD UART (SCI) SPI M/S IO Ports Watchdog Timer Timer Compare / Capture Pulse accumulator READY pin Chip Selects Gatecount
DF6808 fast 64k 4 1 2/2 - 8300
DF6805 fast 64k 4 1 2/2 - 7000
D6802 legacy 64k - - - - -
D6803 legacy 64k 4 1 + - 6000
DF6802 fast fast - - - - -
DF6803 fast 64k 4 1 + - -
DF6811F fast 64k 7 1 5/4 - 14000
DF6811E fast 64k 5 1 5/4 - 12000
DF6811K fast 1M 10 3 13/6 - 21000
D68HC11E legacy 64k 5 1 5/4 - 13000
D68HC11F legacy 64k 7 1 5/4 4 13500
D68HC11K legacy 1M 10 3 13/6 4 21000


DoCD Debugger

Power of Innovation is our primary target. That’s why our R&D focuses on every IP Core detail. As a result of that concern, some unique solutions were born. One of them is the 68XX on-Chip Debugger (DoCD™), which is a complete debugging system, dedicated for all 68XX Cores offered by DCD.

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DoCD Debugger

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