Cypress Perform

Answer: You do not need an external EEPROM for the hub to operate. The hub will enumerate with the default VID/PID of 0x04B4/0x6560 (for HX2LP), or 0x04B4/0x6570 (for HX2VL). You can use this configuration for test/development purposes.

However, for production, you will need your own VID/PID to pass USB compliance and get the hub certified. You can configure the hub to use your VID/PID either of the following ways:

1. Add an external EEPROM to your design. The external EEPROM will be programmed to provide your VID/PID, descriptors, and other hub configuration settings.


2. Purchase your parts with the internal fuse links set to your VID/PID (this is a factory function only and cannot be done after packaging).

For more information, refer to the device datasheet.