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DCD rolls out IP core compatible with Motorola's HC11

Posted: 04 Jun 2013 ?? ?Print Version ?Bookmark and Share

Keywords:Digital Core Design? IP core? Motorola? microcontroller?

Digital Core Design (DCD) recently debut the D68HC11 IP core. DCD's latest IP core is fully compatible with Motorola's HC11 and offers legacy architecture cycle compatible with original microcontrollers, like 68HC11E, 68HC11A, 68HC11D, 68HC11F1, MC68HC11K0 MC68HC(L)11K1, MC68HC(L)11K4, MC68HC11KS2, MC68HC711K4, MC68HC711KS2, MC68HC11KW1. The D68HC11 can be used as direct replacement, pin-to-pin compatible with the original HC11 MCU.

The D68HC11 also includes two options: a Standard and an optimised option. The standard option comes with a preconfigured MCU identical to the original HC11. The optimised version comes with an individual configuration with extra peripherals and additional custom blocks, required by the application.

The company's D68HC11 IP Core family is based on 3 major options: E, F, K. The three options are devoted to the specific original MCU, while also integrating on-chip major peripheral functions. There are asynchronous serial communication interface (SCI) and separate synchronous serial peripheral interface (SPI) included. The main 16bit free-running timer system contains input capture and output-compare lines and a real-time interrupt function. An 8bit pulse accumulator sub-system can count external events or measure external periods. 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.

A self-monitoring, on-chip circuitry is included, protecting D68HC11E against system errors. The Computer Operating Properly (COP) watchdog system protects against software failures. An illegal opcode detection circuit provides non-maskable interrupt, if the illegal opcode is detected. Two software-controlled power-saving modesWAIT and STOP are available, to conserve additional power.

The D68HC11 IP Core, can be also equipped with the ADC Controller. This allows the use of an external ADC controller with standard ADC software. The added design feature in DCD's design makes external ADC's visible in the same way, as internal ADC's in the original 68HC11E Microcontrollers.

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