D68HC11F

D68HC11F 8-bit MCU IP Core – Fully Compatible 68HC11F1 Replacement for Modern SoCs

The D68HC11F is a fully synthesizable 8-bit Microcontroller IP Core, offering 100% binary compatibility with the industry-standard Motorola 68HC11F1 microcontroller. Designed as a drop-in replacement, it enables seamless reuse of existing firmware while extending the classic 68HC11F1 architecture into modern, cost-effective System-on-Chip (SoC) implementations.

In its standard configuration, the D68HC11F integrates all key peripheral functions on-chip, making it ideal for automotive, battery-powered, and industrial embedded systems that demand deterministic behavior, long-term availability, and proven software compatibility.

Key Features and Capabilities

• Full 68HC11F1 Compatibility
  Executes unmodified legacy software with identical instruction set behavior and register mapping.

• Integrated Serial Interfaces
  Includes an asynchronous SCI and a synchronous SPI, ensuring flexible communication with external devices.

• Advanced Timer Subsystem
  A 16-bit free-running timer with input capture, output compare, and real-time interrupt support for precise control applications.

• Pulse Accumulator
  8-bit pulse accumulator capable of counting external events or measuring signal periods.

• Reliability and Safety Mechanisms
  On-chip self-monitoring circuitry, COP watchdog, and illegal opcode detection with non-maskable interrupt (NMI) enhance system robustness.

• Low-Power Operation
  Software-controlled WAIT and STOP modes reduce power consumption, making the core well suited for energy-sensitive designs.

• Optional ADC Controller Support
  Allows external ADCs to appear as internal ADCs, preserving compatibility with standard 68HC11F1 ADC software.

• Fully Customizable Architecture
  Delivered in an exact configuration matching project requirements—no unnecessary logic, no wasted silicon, no extra licensing cost.

• SoC-Ready Verification
  Supplied with a fully automated testbench and comprehensive verification suite for smooth integration across all stages of the SoC design flow.

• DoCD™ Hardware Debug System
  Built-in support for DoCD™, DCD’s real-time, non-intrusive hardware debugger, providing full visibility into CPU registers, SFRs, program and data memory, and user-defined peripherals—without disturbing real-time execution.

Ideal Applications

• Automotive electronics

• Battery-powered embedded systems

• Industrial controllers

• Legacy firmware migration to modern SoCs

• Long-lifecycle and safety-critical designs

The D68HC11F IP Core combines the reliability of the classic 68HC11F1 architecture with the flexibility, scalability, and integration advantages required by today’s SoC designs—making it a future-proof solution for engineers who value compatibility without compromise.

ALL DCD’S IP CORES ARE TECHNOLOGY AGNOSTIC, ENSURING 100% COMPATIBILITY WITH ALL FPGA AND ASIC VENDORS.

For further details, email info@dcd-semi.com

• Cycle compatible with original implementation
• Software compatible with 68HC11 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