XR68C681CJ-F

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Introduction

The XR68C681CJ-F is an 8-bit microcontroller that is part of the integrated XR68C681/68HC7 family of microcontrollers. It is equipped with a small 16K memory, 24 I/Os, and three counter/timers. The microcontroller is designed to be used in applications that require efficient I/O and processing power.The XR68C681CJ-F has two 8-bit UART ports, which are used to interface with other serial devices. The UARTs can be programmed to operate in different baud rates and communication protocols. In this article, we will discuss the application field and working principle of the XR68C681CJ-F UART.

Application Field

The XR68C681CJ-F UART is designed for use in a wide variety of applications. It can be used in embedded systems, such as industrial robots and intelligent building control systems. It can also be used in hand-held devices, such as remote controllers, mobile phones, and pos terminals. It can even be used in automotive applications, such as car diagnostics and infotainment systems. Furthermore, it can be used for communication between components in a computer or a network.

Working Principle

A UART transmits data in the form of serial data frames. Each frame consists of a start bit, data bits, an optional parity bit, and a stop bit. The start bit indicates the start of a frame, the data bits contain the actual data being sent, the parity bit is used for error checking, and the stop bit indicates the end of the frame. The UART also has two control pins, the CTS (Clear To Send) and the RTS (Request To Send). The CTS line is used to request data from the UART and the RTS is used to indicate that the UART is ready to send data.

The XR68C681CJ-F UART is equipped with software-programmable baud rates and communication protocols. This allows the UART to operate in various communication protocols, such as RS232 and RS485. The UART can also be configured for asynchronous or synchronous communication, allowing it to be used with a wide range of serial devices. In addition, the UART has an internal FIFO buffer, which allows it to receive and transmit large amounts of data at high speeds.

Conclusion

The XR68C681CJ-F UART is capable of performing a wide range of serial communication tasks. It is equipped with two 8-bit UART ports, which can be configured to operate in different baud rates, communication protocols, and data transfer modes. In addition, it is equipped with an internal FIFO buffer, which allows it to receive and transmit large amounts of data at high speeds. These features make the XR68C681CJ-F UART ideal for use in a variety of embedded systems, hand-held devices, automotive applications, and communication networks.

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