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TUSB321: USB3. 0 to Type C issue in TUSB321 and HD3SS3212IRKSR applicaiton

Part Number: TUSB321
Other Parts Discussed in Thread: HD3SS3212

Hi team,

my customer use TUSB321 and HD3SS3212IRKSR for USB3.0 to Type C, have below issues:

1. use wire of TypeC to Type C, connect devices and computer, the device can be recognized as USB3.0 in both two sides of Type C wire, No problem.

2. use wire of Type C to Type A, A connect computer and C connect device, found the problem that device can be recognized USB3.0 in one side of typeC, in other side, device is recognized USB3.0 ONLY in power up, re-plug in again, the device is USB2.0 always.

3. if split the power of  TUSB321 and HD3SS3212IRKSR, use VUBS of Type C to power supply TUSB321 and HD3SS3212IRKSR, found that use  Type C to Type A wire, the device can be recoginzed USB3.0 in both two sides. only a few times occure item 2 problem.

could you help give comments? thank you in advance.