DS72011RW100FPV

DS72011RW100FPV Application Field and Working Principle

This article describes the application field and working principle of the DS72011RW100FPV, a single-chip microcontroller released by Realtek for embedded applications.

Application Field

The DS72011RW100FPV is intended for use in a variety of embedded applications such as alarm systems, smart home surveillance, industrial control systems and communications equipment.

The processor is based on a low-power 32-bit ARC RISC processor core and includes a large number of peripherals. These include an in-circuit debugger, flash ROM up to 4MB, an external bus interface, a 10/100 Ethernet MAC, an NXP CAN bus, three serial ports (UART/I2C/SPI), an AT91 RTC, an external bus interface to a programmable logic device (PLD) and a broad range of analog and digital peripherals.

The on-chip debugging support enables developers to quickly carry out debugging operations in order to find and fix software bugs. The development tools are based on open-source software such as GCC and GDB, which makes development easier.

Working Principle

The DS72011RW100FPV operates in lockstep mode. This means that two identical 32-bit processors are operating parallel in order to ensure reliable operation and to execute two instructions per clock cycle. Both cores need to pass the test sequence for successful operation. When the test sequence is passed successfully, both processors enter in lockstep mode, executing instructions in parallel and verifying the instructions by passing two results through a data bus.

The processor also uses an instruction and data cache architecture and includes hardware memory protection, hardware interrupts and DMA controllers, real-time clock support and built-in self-test capabilities.

The processor supports a wide range of operating systems, including embedded Linux and Windows® CE 6.0. It also supports a broad range of communication protocols such as CANopen, PROFIBUS, MODBUS and K-LINE.

Conclusion

The DS72011RW100FPV is a single-chip microcontroller designed for use in a variety of embedded applications. The processor is based on a low-power 32-bit ARC RISC core and features a number of useful peripherals. The processor also supports a wide range of operating systems and communication protocols, making it suitable for a wide range of applications.