// Define the 16C95X serial port registers #define RBR 0x00 #define THR 0x00 #define IER 0x01 #define IIR 0x02
If you are running Linux, you rarely need to download a third-party driver file. The Linux kernel features native, highly optimized support for the 16C95X architecture embedded directly within the core serial subsystem ( drivers/tty/serial/8250/ ).
Windows will locate the .inf file, install the 16C95X driver, and reassign the device under the section as something similar to "Oxford PCI UART Dedicated Port" . Configuring Advanced Driver Settings
Go to Device Manager -> Port Settings -> Advanced. Use the dropdown menu to manually reassign the COM Port Number to an unused lower index. Conclusion
A serial port driver acts as the software bridge between the operating system’s kernel subsystem and the physical 16C95X silicon. Because the 16C95X features advanced capabilities beyond a standard COM port, a generic driver will often bottleneck its performance. 16c95x serial port driver
In modern Linux kernels (Kernel 2.6+), support for the 16C95X chipset is compiled directly into the kernel via the standard 8250/16550 serial driver subsystem ( drivers/tty/serial/8250/ ).
Because Oxford Semiconductor was acquired, older driver packages may lack updated digital signatures required by Windows 10 and Windows 11.
For Windows, Oxford Semiconductor and other manufacturers provide reference drivers for the OX16C95x UART family. These drivers are structured as Plug and Play bus drivers that create device objects for each UART or parallel port. A single-port driver then hooks each UART, enabling the advanced 16C95x features. The drivers are available for Windows NT4, 2000, XP, and later versions.
Serial communication is a widely used method for transferring data between devices. The 16C95X UART chip is a widely used component in many computer systems, providing a reliable and efficient way to perform serial communication. However, to utilize the 16C95X chip, a driver is required to manage its operations and facilitate communication between the chip and the operating system. This paper focuses on the development of a 16C95X serial port driver. // Define the 16C95X serial port registers #define
The 16C95x has enjoyed broad compatibility across multiple generations of operating systems.
If you have recently integrated an expansion card, a PCIe adapter, or an industrial PC utilizing the OX16C95x or OX16PCI95x chipset, you will need the to bridge the hardware and your operating system. Without the correct driver, your device may show up as an unrecognized "PCI Serial Port" with a yellow warning icon in your system manager.
: Connecting CNC machines, barcode scanners, or older industrial printers. Compatibility & Installation Issues
Are you encountering a or performance issue? Share public link Configuring Advanced Driver Settings Go to Device Manager
Once installed, you should manually verify that the driver is utilizing the hardware’s full potential:
Capable of supporting flexible baud rates up to 60 Mbaud (and up to 50 Mbaud on the OX16C954).
The parallel port or one of the serial ports is not functioning correctly, particularly with legacy devices like ZIP drives.
, the driver continues to be used in modern environments like Windows 10 and 11 for specialized hardware. HP Support Community Manual Installation
The 16C95x driver is commonly found in legacy and industrial-grade hardware, specifically for PCI and PCI Express (PCIe) expansion cards that add RS-232, RS-422, or RS-485 ports to a computer.
Point the wizard to the folder containing the .inf file for the 16C95x.
