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TPS65982: Data transmitting path

Oliver Lin
Expert 4475 points
Part Number: TPS65982
Other Parts Discussed in Thread: TUSB564

Hi experts,

When a device connects to type-C port, CC1 and CC2 can distinguish the cable orientation. How could we know that  Tx1+,Tx1-,Rx1+Rx1- or  Tx2+,Tx2-,Rx2+Rx2- are transmitting data? Cause we trying to measure the signal but no idea which pins to check.

Thanks

Oliver

  • 0
    TI__Mastermind 36756 points

    Hi Oliver,

    In the CC messaging, the PD controller will determine if TX/RX are being used as the two devices will discuss their capabilities. The TPS65982 can then control an external super-speed mux such as the TUSB564 through GPIOs. You can read back this information on the TPS65982 in the Data Status register.

    If this answers your question, PLEASE select This resolved my issue

    Thank you,

    Eric