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TUSB8042A: TUSB8042A Device configuration register 0x05 bit 5 u1u2disable feature related error..

Part Number: TUSB8042A

Hi.

I am testing USB 3.0 interface between PC<-->TUSB8042A<--->FTDI FT601 USB3.0 peripheral devices.

During continuous USB Data Read/Write to FTDI ft601 devices, FTDI API return abort error code.

I have tested several  PCBs  which have TUSB8042A and ft601 devices.

The error probability varies with PCB samples.

some PCB error occurs in a minute and another PCB occurs in  few hours.

I have set u1u2Disable bit in register offset 0x5h(Device configuration register) of TUSB8042A,

then error diappeared and the problem solved.

What can be possible cause of this behaviour?.