Evatronix SA 
Part Number : R8051
Overview :
The R8051 is a core of a fast single- chip 8-bit microcontroller. It is a fully functional 8-bit embedded controller that executes all ASM51 instructions and has the same instruction set as the 80C31. The R8051 provides software and hardware interrupts, an interface for serial communications and two timers.
Features : - Control Unit
- reduced instruction cycle time up to 12 times
- Arithmetic-Logic Unit
- 32-bit Input/Output ports
- four 8-bit I/O ports
- alternate port functions such as external interrupts and serial interface are separated, providing extra port pins when compared with the standard 8051
- two 16-bit Timer/Counters
- Serial Peripheral Interfaces in full duplex mode
- synchronous mode, fixed baud rate
- 8-bit UART mode, variable baud rate
- 9-bit UART mode, fixed baud rate
- 9-bit UART mode, variable baud rate
- multiprocessor communication
- Interrupt Controller
- two Priority Levels
- five interrupt sources
- Internal Data Memory interface
- can address up to 256 bytes of Read/Write Data Memory Space
- External Memory interface
- can address up to 64 KB of External Program Memory
- can address up to 64 KB of External Data Memory
- de-multiplexed Address/Data Bus to allow easy connection to memories
- variable length MOVX to access fast/slow RAM/ or peripherals
- wait cycles to access fast/slow ROM
- dual data pointer register
- Program Memory Write mode
- Special Function Registers interface
- services up to 103 External Special Function Registers
- Power Management Unit
- power management modes IDLE and STOP
- On-Chip Instrumentation interface
Categories :
Portability :
Type : Soft

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