2019-10-28 06:05 AM
2019-12-05 06:21 PM
Hello,
The A_B_SIDE pin of STUSB4500 tells you the orientation of the USB-C cable.
- If the A_B_SIDE pin is at level '1', it means the CC line (of the USB-C cable) is connected to CC1 pin.
- If the A_B_SIDE pin is at level '0', it means the CC line (of the USB-C cable) is connected to CC2 pin.
Thus you can know which pins are used for USB 3.x data transfer:
- If CC1 is used, then the USB 3.x SuperSpeed signals are coming from TX1+/TX1- and RX1+/RX1- (i.e. the SuperSpeed pins closer to CC1 pin).
- If CC2 is used, then the USB 3.x SuperSpeed signals are coming from TX2+/TX2- and RX2+/RX2-
Best regards.
2019-12-27 04:17 AM
Hi Gregory,
Thank you for your valuable response. In my design I have used A_B_SIDE of STUSB4500 to select TUSB542 USB 3.0 re-driver. But USB3.0 is not getting detected. The USB3.0 Device is detected as high speed device, than super speed device.
Regards,
Vyshnav Krishnan