Tool/software:
Hi team,
I have a problem with the application of TI XIO2213B 1394b. I would like to ask you to provide some suggestions. We have already mass-produced this product, but recently there has been a problem when applying it to the M.2 interface. The situation is a single device (A) or (B) is normal when connected and run the test, but when the device (A) & (B) are connected and run the test together, the device (B) will retreat. This situation has been tested many times and it is always the device. (B) This is the case. XIO2213B has three ports and they are the same no matter how they are connected. If you switch devices (A) & (B) to a mass-produced board, there will be no such situation. After comparing the circuit and parts, it is confirmed. The reason cannot be found. There is nothing that needs to be paid attention to in this situation. I have attached the circuit diagram. Thank you.
