The series (including the 16C950, 16C952, and 16C954) represents a high-performance UART (Universal Asynchronous Receiver-Transmitter) standard often found on PCI or PCIe serial cards. Because these chips are backwards compatible with the industry-standard 16550 UART, modern operating systems usually handle them with built-in drivers. 1. Identify Your Hardware

XR16C850/XR16C854/16C864/16C154/16C95x Universal Asynchronous Receiver Transmitter (UART) Datasheet