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TPS65994AE: TPS65994AE technology issue

Part Number: TPS65994AE
Other Parts Discussed in Thread: TUSB1104, TPS65994


We consider to use the TPS65994AE+TUSB1104 for the type-C and USB 3.2 application, but now we have no EC device for the I2C master control, so we have below issue for this application:

1. We consider to use one port of TPS65994AE and reserved the other port for the next new design, so how to design the reserved port, connect GND or floating?

2. How to recognite the forward and reverse insertion for the type-C interface without EC, and TPS65994 can automatic identification or not? 

3. How to set output rate of the type-C to 20Gbps, and can we twine the two ports of TUSB1104 to one ports for the output, thanks.