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Use of multiple ReNumeration? | Cypress Semiconductor

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Use of multiple ReNumeration?

Last Updated: August 03, 2010

Question: What is multiple ReNumeration™? What is its use?

Response: ReNumeration™ is a cypress patented method by which the USB device can take on the identity of multiple USB devices by soft reconfiguration. Multiple ReNumeration™ - EZ-USB (AN21xx/FX/FX1/FX2/FX2LP) firmware can renumerate anytime. One use for this capability might be to 'fine tune' an isochronous endpoint's bandwidth requests by trying various descriptor values and renumerating.

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