XR20M1170IL16-F

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The XR20M1170IL16-F is a dynamic interface controller designed to provide improved flexibility and data throughput while minimizing latency and error response times. This device, developed by Texas Instruments, primarily operates in the 8-bit parallel and Serial Peripheral Interface (SPI) communications realms, and it features a universal asynchronous receiver/transmitter (UART) for operating in both asynchronous and synchronous serial communications.

The XR20M1170IL16-F is a highly integrated source-synchronous interface that combines multiple functions in a single controller, including an 8-bit bidirectional parallel interface (PB) for slave devices, an SPI master mode for connecting to SPI slaves, universal synchronous-asynchronous receiver/transmitter (UART) for asynchronous serial devices, a low bit-rate master mode for various one-wire or other low-rate serial buses, and an additional serial interface that may be used to access an external memory device. The controller also supplies several power management and system control functions, such as clock generator and low-power mode interface.

The XR20M1170IL16-F is designed with an efficient 80515-based architecture to provide low-latency, high-performance performance in the 7- to 27-MHz frequency range and supports a range of data formats and communication modes. The device also provides flexibility in flow control and data arbitration, allowing high-speed data transfers while minimizing latency and reducing power consumption.

The 8-bit PB interface of the XR20M1170IL16-F is used to manage device connections and data transfers between the controller and external memories, including SRAMs, DRAMs, and external ROMs. This interface supports both memory-mapped and direct memory access (DMA) protocols, which provide direct access to memory without needing processor intervention. The PB interface also supports both a write-post and read-post flow control arrangement, which allows the master device to quickly access the external slave device\'s memory.

The SPI master mode provides support for the interfacing of SPI slaves with the controller. The SPI master mode supports up to three slaves, providing the convenience of multiple device connections. The SPI bus can operate in both synchronous and asynchronous modes, allowing for a variety of communication protocols. The SPI master mode also allows for the synchronization of low-rate serial data, such as one-wire or Dallas 1-Wire Bus protocols.

The XR20M1170IL16-F also includes a UART interface, which is used to interface with asynchronous serial communicators. The UART can operate in either synchronous or asynchronous mode, depending on the requirements of the communicators. The UART supports a variety of baud rates and transmission protocols, including multi-drop operations and multiple station address support.

The XR20M1170IL16-F also provides an economical way to manage power consumption in mobile devices. The integrated clock generator and low-power mode interface provide a simple and cost-effective way to reduce system power consumption by optimizing clock frequency and switching between multiple power states. The low-power mode interface also automatically switches the controller between active and sleep states, further reducing system power consumption.

In summary, the XR20M1170IL16-F is a highly integrated and efficient source-synchronous interface controller designed for use in embedded and mobile applications. The controller provides multiple communication interfaces, including 8-bit PB, SPI master mode, universal asynchronous receiver/transmitter (UART), low bit-rate master mode, and additional serial interface, ensuring reliable data transfer and efficient power management. The versatile architecture and low latency communication interface make the XR20M1170IL16-F an ideal solution for controlling and managing connected devices in a wide range of applications.

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