XR88C192IJ-F

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UARTs (Universal Asynchronous Receiver Transmitter) provides a communications system for data transmission used in a wide range of applications, from consumer electronics to industrial automation. The XR88C192IJ-F is a UART controller by Xilinx that integrates many features and is widely used to meet the needs of different application fields. This article will discuss application fields and working principle of the XR88C192IJ-F.

Application Field

The XR88C192IJ-F provides 4 UART channels, each of which has its own 16-bit programmable transmission and reception buffer registers. It is capable of short packet transmission & reception, and supports standard data formats such as 8-bit modes, 1-stop bit, 1-start bit, no parity, and no flow control. These features make it ideally suited for low-bandwidth applications, such as POS devices, gaming systems, embedded applications and automotive media entertainment systems. In addition, XR88C192IJ-F supports multiple error detection methods and offers fully integrated module interfaces with power-up detect. It also has a high-speed UART serial interface that works with multi-speed data streams and supports both synchronous and asynchronous data communication.

XR88C192IJ-F is a full-featured UART controller which can handle up to 4 independent UART channels. By using four UARTs on one XR88C192IJ-F controller, multiple devices can be connected to a single bus. This makes it ideal for applications that require multiple serial ports, such as automotive and avionics systems.

Apart from serial communication, the XR88C192IJ-F also supports full-featured hardware and software compatibility with Xilinx FPGAs such as Enhanced GRPWA, Block RAM and Xilinx Core Generator. With its FPGA compatibility, the XR88C192IJ-F can easily integrate into existing designs, allowing for easier development and reducing time-to-market.

Working Principle

The XR88C192IJ-F UART controller is a high-performance device with a built-in programmable FIFO buffer. It operates using a clock frequency of up to 12.8MHz. Its functions include transmitting and receiving data over a UART link with a single data bit enabled or disabled depending on the type of connection and any additional requirements. When the communication is activated, an interrupt can be triggered to alert the microcontroller of an incoming or outgoing transmission that requires attention.

In order to transmit data over the UART link, the UART controller receives a CPSR code from the CPU indicating the size of the data to be transmitted. Then the data is loaded in the transmitter/receiver buffer, registers and a status bit is set to indicate that new data is ready. The XR88C192IJ-F then sends the data bits out one at a time by shifting the bits into its shift register. After the data has been transferred, the XR88C192IJ-F will generate an interrupt request to alert the CPU.

When the XR88C192IJ-F is used to receive data, the FIFO buffer will first receive the data. Once the new data is received, the controller will set a status bit indicating the presence of data, and trigger an interrupt to alert the CPU. The CPU then reads the data from the FIFO buffer and stores it in the receiver buffer and registers. Finally, the CPU can acknowledge the receipt of data and send out acknowledgement frames.

In addition to the transmission of data, the XR88C192IJ-F also provides a robust suite of features. These features include autobaud, hardware flow control, baud rate generation, multi protocol support, configurable median level interface, transmit emulation and interrupt vectoring. These features provide robust and secure communications by protecting the data integrity and providing efficient data transmission.

The XR88C192IJ-F is an ideal choice for a wide range of applications due to its robust features, UART compatibility, high speed and flexibility. The various application fields and working principle of the XR88C192IJ-F make it a highly reliable UART controller. Its 4 UART channels and various features provide a cost-effective solution for a variety of communication needs.

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