Fast, configurable, single-chip 32-bit microcontroller IP core

R80251XC - 32-bit 8051-compatible Powerhouse

The R80251XC is a fast, configurable, single-chip internally 32-bit microcontroller IP core compatible to the MCS® 251 and MCS® 51 instruction set.

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 times over the standard 80C51 and of 3.8 times 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 the EASE-8051 debugging system is also available.

Highlights & Benefits
Configurability
Versions
Applications
Deliverables

Highlights

Ultra high performance 8051 compatible 32-bit microcontroller IP core
External Memory Interface that addresses up to 16 MB of Program and Data Memory
Power Management Unit with power-down modes (IDLE/STOP)
Native On-Chip Debug Support (OCDS) interface

Benefits

The highest performing 8051-compatible microcontroller IP on the market
Extensive configurability options
Alternate port functions are separated, providing extra port pins
KEIL™-compatible, complete application debugging environment

Number of 8-bit I/O ports
Number of 16-bit timers
Programmable Counter Array implementation
Number or serial ports
Implementation of Watchdog timer

Number of I2C master-slave interfaces
SPI master-slave interface support
On-chip Debug Support (OCDS)
Number of hardware breakpoints: 2 to 8 (for OCDS)

Program trace (for OCDS)
Data & program trace (for OCDS)
Software Reset
Real Time Clock

The core can be delivered as either pre-configured version (I or T) or fully configurable source code.

R80251XC-I – downward-configurable, predefined configuration with peripheral set and timing compatibility exactly as in the Intel 80C251. The design includes: 3 Timers, PCA, Serial port, 4 Parallel Ports, 2 External Interrupts and a Watchdog Timer
R80251XC-T – downward-configurable, predefined configuration with enhanced performance and peripheral set including: 3 Timers, PCA, Serial port, 4 Parallel Ports, 2 External Interrupts and a Watchdog Timer
R80251XC-IF – fixed (pre-configured) version derived from the R80251XC-I
R80251XC-TF – fixed (pre-configured) version derived from the R80251XC-T
R80251XC – fully customer configurable version, all peripherals included

32-bit data processing applications
High speed control systems
Mixed-signal SoC control

Deliverables

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
Documentation
Configuration tool (only for the configurable versions of the R80251XC)
30 days of technical support
90 days of warranty against defects

Delivery Options

EDIF netlist for FPGA and low volume production
EASE-8051 - a complete application debugging solution
One-year maintenance
On-site support and training

Downloads

Similar Products

R8051XC2 - a fast, configurable, single-chip 8-bit microcontroller 8051 IP core that can be used to implement a variety of designs utilizing the MCS® 51 instruction set.

T8051 - the world’s smallest 8051 IP core of a microcontroller which executes ASM51 instruction set.

Related Products

EASE-8051 – KEIL™-compatible application debugging environment

SPI - a serial bus controller that enables full-duplex, synchronous, serial communication between the 8051-compatible microcontroller and peripheral devices.

I²C – a serial interface that meets the Philips® I²C-bus specification and supports all transfer modes from and to the I²C-bus.