CYUSB3014-BZXC EZ-USB® FX3 SuperSpeed USB Controller high definition audio realtek

■ ACA device

■ Targeted USB peripheral

■ SRP-capable USB peripheral

■ HNP-capable USB peripheral

■ OTG host

■ HNP-capable host

■ OTG device

ReNumeration 

Because of FX3's soft configuration, one chip can take on the identities of multiple distinct USB devices.

When first plugged into USB, FX3 enumerates automatically with the Cypress Vendor ID (0x04B4) and downloads firmware and USB descriptors over the USB interface. The downloaded firmware executes an electrical disconnect and connect. FX3 enumerates again, this time as a device defined by the downloaded information. This patented two-step process, called ReNumeration, happens instantly when the device is plugged in.

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