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TUSB8041: Behavior when un-programmed EEPROM attached

Part Number: TUSB8041


From the datasheet, if the first byte of the external EEPROM is not 55h, the TUSB8041 will load the default configurations. But latter is says:

If the hub detected an un-programmed EEPROM (value other than 55h), the hub will enter Programming Mode and a Programming Endpoint within the hub will be enabled.

In the so called 'Programming Mode' will all the ports work as normal? Or it will stop work and waiting for a programming?