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TUSB8041: USB Hub Not Recognized

Part Number: TUSB8041

Hi,

TUSB8041 USB Hub is not recognized when we connecting to PC.

External EEPROM is not populated and having configure as above.

 

SDA         - pin 37 - pullup   - 2.0V

SCL         - pin 38 - pullup   - 2.0V

SMBUS#     - pin 39 - pullup   - 3.3V

 

FULLPWRMGMT - pin 40 - pulldown - 0.0V

PWRCTL_POL - pin 41 - pulldown - 0.0V

GANGED     - pin 42 - pulldown - 0.0V

 

AUTOEN#     - pin 45 - pullup   - 3.3V

Test       - pin 49 - pulldown - 0.0V

 

Pin 48 (VBUS Voltage)           - 499mv

Pin 62 (Clock frequency)       - 12 Mhz

Pin 50 (reset dissertation)     - 10ms

 

Thanks

Jagadeesh