The R80251XC is a fast, configurable, single-chip
internally 32-bit microcontroller IP core compatible to the MCS® 251 and MCS® 51 instruction sets. This highly efficient design runs an average of 3.18 times faster than the 80C251 at the same clock frequency. The Dhrystone benchmark score varies from 0.098 to 0.39 DMIPS/MHz, depending on working mode, which translates to speed improvement of 41.8 over the standard 80C51 and of 3.8 over the 80C251 at the same frequency.
A rich set of optional features and peripherals enables designers to closely match the core with their specific
application and hardware requirements (FPGA, ASIC,
or structured ASIC). These options include interrupts, interfaces for serial communication (UART, I2C and SPI), timers, I/O ports, power management unit, watchdog timer and real-time clock. Integrated on-chip debugging using the native OCDS and EASE debugging system is also available.
The fastest 80251 CPU in the the market, over 3 times faster than the 80C251 from Intel®
External Memory Interface that addresses up to 16 MB of Program and Data Memory
Special Function Registers (SFR) interface that services from 51 to 114 External SFRs
Interrupt Controller with 4 priority levels
Power Management Unit with power-down modes (IDLE/STOP)
Native On-Chip Debug Support (OCDS) interface
Up to 3 Timers/ Counters
Programmable Counter Array
Full-duplex asynchronous Serial0 and Serial1 interfaces
VHDL/Verilog source code
Synthesis support for Synopsys® and Cadence® tools with a set of synthesis scripts
Simulation support for Mentor Graphics® and Cadence® tools with a set of scripts and macros, Extensive VHDL/Verilog 2001 test bench
"Fujitsu Telecommunications Europe was recently presented with a major product re-design issue that required a significant number of its design and development processes to be fast-tracked against a very aggressive timeframe. We engaged with Evatronix to assist us in this endeavour and were highly impressed with the responsiveness, quality of work and professionalism of the company. We would quite happily work with Evatronix in the future. "
Mark Hanvey, Director of Procurement Fujitsu Telecommunications Europe Ltd