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In the AN70707(Page 6) and the pcb file of FX3_DVK(FX3_DVK DEVICE_Brd_Rev2_PD11-0306_PCB_051611-1.brd), the pin of FX3 connect to usb3 connector in this order:
FX---Connector Micro-B
SSRxM A3---pin 10 SSRx+
SSRxP A4---pin 9 SSRx-
SSTxP A5---pin 7 SSTx+
SSTxM A6---pin 6 SSTx-
But the pin10 of usb3 connector is the SSRX+(USB 3.0 Specification, Page 103), A3 is SSRXM (CYUSB3014 datasheet Page31, 33).
pin9 is SSRX-, A4 is SSRXP.
Is it right to connect in this order?
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Yes this is correct. USB3 Tx and Rx signals support polarity swapping to give the designer more layout flexibility
Hussein
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Thank you!
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Should I write some code or set reigster to enable this polarity swaping?
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No Additonal FW or other changes is needed. The polarity is detected automatically during SS Link training.
Hussein
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Thank you Hussein.