Cadence Design Systems Inc. R8051

The Cadence Design Systems Inc. R8051 is a Single-clock 8051-compatible IP core with 8 times more performance than legacy 80C51 (with Dhrystone v1.1 Benchmark on identical clock speed). Features: 32 I/O lines, two 16-bit Timer/Counters, 5 interrupts/2 priority levels, dual data pointer, one serial peripheral interface, power management unit. Optional available: On-Chip Debug Support for Keil uVision Debugger. The R8051 IP core is compatible with FPGA and ASIC design.

*** EOL Notice ***
This device is no longer in production.

Development Tools Compiler, Assembler, Linker, Debugger CA51 Compiler Kit Keil PK51 Professional Developer's Kit Keil Data Sheets 8051 Instruction Set Manual 1,478,015 bytes Header Files REG51.H 1,541 bytes Emulators iC1000 PowerEmulator iSystem MetaICE-XF 8051 In-Circuit Emulator Metalink Corporation

Real-Time OS RTX51 Tiny Keil Simulated Features The following on-chip peripherals are simulated by the Keil Software µVision Debugger. High Speed 8051 Core Interrupts 13S/4L (including External) Port 0 Port 1 Port 2 Port 3 Power save modes (Idle & Power down) Serial UART Timer 0 Timer 1 AGSI Drivers The following AGSI Drivers are available for the Keil Software µVision Simulator. Proteus VSM Labcenter Electronics 8051 State Machine MEBA I²C Simulation MEBA LCD Simulation (HD44780 Controller) MEBA LED simulation MEBA Signal Generator MEBA AGDI Drivers The following AGDI Drivers are available for the Keil Software µVision Debugger. Keil ISD51 Driver Keil Keil MON51/FlashMON Driver Keil