NXP SC16C850LIET: A Comprehensive Technical Overview of the High-Performance UART with 16-Byte FIFOs
The NXP SC16C850LIET stands as a pivotal component in the realm of serial communication interfaces, representing a significant evolution in Universal Asynchronous Receiver/Transmitter (UART) technology. This device is engineered to facilitate high-speed, reliable data transfer between a microprocessor or microcontroller and serial devices, effectively mitigating system bottlenecks and enhancing overall performance. Its integration of 16-byte transmit and receive FIFOs (First-In, First-Out buffers) is a cornerstone feature, dramatically reducing the number of interrupts the host processor must handle and enabling more efficient data management.
A key attribute of the SC16C850LIET is its programmable data rate, capable of supporting baud rates up to an impressive 5 Mbps when using a 80 MHz clock. This flexibility allows it to adapt to a wide array of communication standards and application requirements, from industrial control systems to networking equipment. The UART includes autoflow control signals (RTS/CTS), which are essential for preventing data overrun and underrun, thereby ensuring seamless and error-free data streams. Furthermore, it offers software and hardware autoflow control, providing designers with multiple options to optimize data integrity based on their specific system architecture.
The device also boasts a fully programmable serial interface, supporting data formats of 5, 6, 7, or 8 bits with even, odd, or no parity options. This programmability ensures compatibility with virtually any legacy or modern serial protocol. For enhanced system monitoring and debugging, the SC16C850LIET provides a complete set of status registers, reporting conditions such as line breaks, parity errors, and framing errors. Its operation is simplified through a standard modem control interface, including signals like DTR, DSR, DCD, and RI, making it suitable for modem communications.
Housed in a compact TSSOP package, the SC16C850LIET is designed for space-constrained applications while maintaining robust performance. Its low power consumption makes it an excellent choice for power-sensitive designs. The combination of high speed, deep FIFOs, and advanced control features makes this UART an indispensable solution for applications demanding reliable and efficient asynchronous serial data transfer.
ICGOOODFIND: The NXP SC16C850LIET is a high-performance UART that excels in offloading host processors and ensuring reliable data communication through its deep 16-byte FIFOs, high-speed capability up to 5 Mbps, and sophisticated autoflow control mechanisms, making it a superior choice for complex embedded systems.
Keywords: UART, FIFO, Autoflow Control, Serial Communication, Baud Rate
