16c95x Serial Port Driver Jun 2026

(now part of Diodes Incorporated) UART chipset. It is commonly found in industrial-grade multi-port serial cards, docking stations, and legacy-compatible business desktops from manufacturers like Core Technical Features

: Provides automated hardware (RTS/CTS or DSR/DTR) and software (Xon/Xoff) flow control to prevent buffer overruns. Flexible Configuration Fully adjustable interrupt trigger levels. Support for 9-bit data frames , often used in multi-drop industrial protocols. RS-485 half-duplex configuration support. Backward Compatibility

Once installed, the ports will appear cleanly as Oxford PCI UART or 16C95X Serial Port (COMx) . For Linux Systems

The 16C95x serial port driver is a robust and feature-rich driver that unlocks the full potential of high-performance UARTs. Whether you are using Linux or Windows, the driver provides essential functionalities such as large FIFOs, automatic flow control, and high baud rates. 16c95x serial port driver

If text or telemetry data returns as garbled code or random characters, the baud rate clock is likely mismatched.

The 16C95x driver enables baud rates up to 460 Kbaud or higher, but the actual maximum depends on the hardware implementation. Some cards, like the EX-42032IS, can reach up to 921.6 Kbaud/s. For optimal performance, ensure that the driver is using the correct clock source and that the FIFO trigger levels are appropriately set. On Windows, you can use the driver's property pages to adjust these settings. On Linux, the setserial command can be used to view and modify UART parameters, such as the FIFO trigger level.

Supports custom clock prescalers to achieve baud rates up to 15 Mbps , compared to the 115.2 Kbps limit of legacy chips. Why You Need the Correct 16C95X Driver (now part of Diodes Incorporated) UART chipset

The 16C95x (often referring to OX16C950, OX16C952, and OX16C954 chips originally developed by Oxford Semiconductor and now managed by companies like Exar/MaxLinear) is a line of . These chips are frequently found on multi-port serial cards produced by manufacturers like StarTech.com, Sunix, and SIIG.

The 16C95X serial port driver remains a critical component for high-speed, stable asynchronous data communications. By unlocking the 128-byte hardware FIFO and deep automation features built into the silicon, it bridges the gap between ultra-fast modern computing processors and specialized industrial peripherals. Keeping your drivers updated directly from the card vendor and tuning your FIFO thresholds will ensure your automated systems run without a single dropped byte.

In general, higher trigger levels reduce CPU load but increase latency, making them suitable for high-throughput, low-interrupt environments. Lower trigger levels minimize latency at the cost of more frequent interrupts, ideal for interactive or real-time applications. Support for 9-bit data frames , often used

The Tx interrupt (THRE – Transmitter Holding Register Empty) asserts when the Tx FIFO falls below the programmed trigger level (default empty). The driver’s Tx ISR should fill the FIFO up to its capacity or until the Tx buffer is empty.

If you experience data corruption, lowering the transmit/receive FIFO buffer sizes can improve compatibility with older software, while raising them maximizes throughput for high-speed industrial applications. Troubleshooting Common 16C95X Driver Issues 1. Error Code 10 (Device Cannot Start)