. If you see this listed as an "Unknown Device" in your Windows Device Manager, it means your computer has an infrared sensor that lacks the necessary driver to communicate with the operating system. Identification and Function
On a spectrum analyzer, the NSC6001 was broadcasting a narrowband signal at 4.194304 MHz—exactly the frequency of an old RTC (Real-Time Clock) crystal. But the modulation wasn't clock data. It was a GPS-denied location beacon, triangulating off the latency of terrestrial radio towers.
to older mobile phones, PDAs (Personal Digital Assistants), and digital cameras.
Microsoft maintains an archive of signed National Semiconductor drivers that work across various Windows environments. Visit the Microsoft Update Catalog . Search for in the search bar.
Supports "Fast Infrared" (FIR) speeds, typically up to 4 Mbps. 📄 Recommended Technical Resources
We plugged it into our test bench—a Faraday-caged rig designed to isolate legacy ACPI (Advanced Configuration and Power Interface) devices. The system BIOS chirped, enumerated the PCI bus, and spat out the identifier: ACPI\NSC6001 .
: The vendor prefix assigned to National Semiconductor , the original manufacturer of the integrated circuit chip.
stands for Advanced Configuration and Power Interface. It is the part of your operating system that manages power consumption and hardware configuration. NSC6001 is a hardware ID representing a Fast Infrared (FIR) transceiver chipset manufactured by National Semiconductor.
Depending on your computer manufacturer and operating system version, use the following methods to resolve the missing driver error.
: Indicates the device is integrated into the motherboard and managed by the system's power and configuration architecture.
