DF6811K
8-bit FAST Microcontroller
Description
DF6811K 8-bit MCU IP Core – High-Performance, Fully Configurable 68HC11K Compatible
The DF6811K is an advanced 8-bit microcontroller IP Core with highly integrated on-chip peripherals, fully binary-compatible with the industry-standard Motorola 68HC11K microcontroller. Leveraging DCD’s FAST architecture, the DF6811K delivers up to 4× higher performance compared to the original 68HC11K, making it ideal for automotive, battery-powered, and industrial SoC applications.
This core is fully customizable, allowing developers to configure it to match the following 68HC11K family variants: MC68HC11K0, MC68HC11K1, MC68HC11K4, MC68HC711K4, MC68HC11KS2, MC68HC711KS2. Flexible configuration ensures that only the required features are included, reducing silicon usage and optimizing cost.
Key Features & Capabilities:
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Dual Serial Interfaces: Asynchronous SCI and synchronous SPI for versatile communication.
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16-bit Free-Running Timer: Includes 3 input capture lines, 5 output compare lines, and real-time interrupt system.
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Pulse Accumulator: 8-bit subsystem for counting external events or measuring periods.
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Reliability & Safety: On-chip self-monitoring, COP watchdog, and illegal opcode detection with non-maskable interrupt.
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Power Efficiency: WAIT and STOP software-controlled low-power modes for energy-sensitive applications.
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Optional ADC Support: External ADC controllers can be integrated as internal ADCs while maintaining full 68HC11K compatibility.
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Fully Automated Validation: Delivered with a complete test bench and verification suite for seamless SoC integration.
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DoCD™ Debug Support: Built-in real-time hardware debugger providing non-intrusive SoC debugging, including CPU registers, program/data memory, SFRs, and user-defined peripherals.
The DF6811K’s combination of high performance, low power, and fully integrated peripherals makes it a versatile solution for automotive electronics, battery-driven embedded systems, industrial controls, and general-purpose SoCs.
Applications:
Automotive, industrial controls, battery-powered embedded systems, SoCs requiring highly reliable and configurable MCU cores.
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
Key features
- FAST architecture – 4 times faster than the original implementation
- Software compatible with 68HC11 industry standard
- 10 times faster multiplication
- 16 times faster division
- 256 bytes of remapped System Function Registers space (SFRs)
- De-multiplexed Address/Data Bus, to allow easy memory connection
- Core can also be used without I/O wrapper, so each peripheral functions pins will be separated from I/O ports lines.
- Two power saving modes: STOP, WAIT
- Ready pin allows Core to operate with slow program and data memories.
- Fully synthesizable
- Static synchronous design
- No internal reset generator or gated clock
- Positive edge clocking and no internal tri-states
- Scan test ready
- 1 GHz of virtual clock frequency, compared to original implementation
- 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 |
Features
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 D68XX on-Chip Debugger (DoCD™) which is a complete debugging system, dedicated for all 68XX Cores offered by DCD.
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