DOMINION Electronics has released the Rabbit 3000 low EMI microprocessor for embedded control, communications, and Ethernet connectivity.
The eight-bit processor outperforms most 16-bit processors without losing the efficiency of an eight-bit architecture. Integrated features and glueless architecture facilitate rapid hardware design, while a C-friendly instruction set promotes the efficient development of complex applications.
It runs at up to 55.5MHz, with compact code and direct software support for 1MB of code/data space. It also features a battery-backable real time clock, glueless memory and I/O interfacing, and low power modes. Four levels of interrupt priority allow fast response to real time events. Its compact instruction set and high clock speeds allow fast math, logic, and I/O performance.
The unit requires no external memory driver or interface-logic. Its 20-bit address bus, eight-bit data bus, three chip select lines, two output-enable lines, and two write-enable lines can be directly interfaced with up to six Flash/SRAM devices. Up to 1MB of memory can be accessed directly via the Dynamic C development software, and up to 6MB can be interfaced with additional software development.
The Rabbit 3000 features seven eight-bit parallel ports, yielding a total of 56 digital I/Os. It also offers alternate I/O functions. Two quadrature decoder channels each have two inputs, as well as an eight-bit up-down counter.