R8051XC2

The world’s fastest, most configurable 8051 IP core microcontroller

Overview

The R8051XC2 is 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.

The Dhrystone2.1 benchmark score for the R8051XC2 shows speed improvement from 9.4 to 12.1 over the Intel^® 80C51 at the same frequency, or 400 times its maximum performance when implemented in 90 nm process at 430 MHz.

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 memory pointers, interrupts, interfaces for serial communication (UART, I2C and SPI), timer system, I/O ports, power management unit, multiplication-division unit, watchdog timer, DMA controller and a real-time clock. Integrated on-chip debugging is realized through the proprietary EASE-8051 solution.

Highlights

The fastest 8051 IP core in the market, over 12 times faster than the 80C51 from Intel^®
External Memory Interface that addresses up to 8 MB of Program and Data Memory
Power Management Unit with power-down modes (IDLE/STOP)
Native On-Chip Debug Support (OCDS) interface

Benefits

The fastest 8051-compatible microcontroller IP on the market
Extensive configurability options
Lowest power per DMIPS available
Alternate port functions are separated, providing extra port pins
KEIL™-compatible, complete application debugging environment

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Configurability

A spreadsheet-like Design Configurator is available to help in the selection of the core’s many options. The configurable options include:

Size of external data/program memory
Number of DPTR registers, I/O ports, timers and serial ports as well as DMA channels
80C51- or 80C515-like interrupt controller

Optional features include a watchdog timer, multiplication-division unit, I2C-bus and SPI interfaces, OCDS support, software reset, external DMA operations support and a real time clock.

The R8051XC2 can also be delivered in either fixed or downward configurable versions matching 80C51 or 80C515 specifications.

Applications

8-bit data processing applications
Low power consumption applications
High speed control systems
Mixed-signal SoC control