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HD3SS3220: HD3SS3220IRNHR USB Type C MUX

Part Number: HD3SS3220

Hi Team,

I am using in a new project the device: HD3SS3220IRNHR

Which is a USB Type C mux

When connecting a USB3 Thumb drive it detected as a Super Speed device

When I connecting the plug in 180deg polarity it recognized as an High Speed device

When I reconnecting the upstream or Reseting the Hub the Tomb drive is recognized as a Super Speed device,

 

It seems that the CC1 and CC2 are not recognized in active mode,

 

I also checked with oscilloscope the voltage level of one of the CC pins (CC2 I think),

The CC pin turn to low only when Detached and attached the upstream cable again or reseting the HUB for detecting properly

 

Please advise how can I recognized the device orientation actively,

 

Attached is the Schematics implementation,

 

Thanks,

Shlomi

Gen2 bu - USB Type C Mux 14 06 20.pdf