Hi
in one of our designs, we have two TUSB422 as part of a USB type C cable tester
we need to detect a cable is plugged its orientation and to read the E-marker in the cable
the current status is:
one port is configured as a sink the other as a source as mentioned in part 7.3.3 DFP and 7.3.4 UFP in the datasheet
if I connect the sink port to my laptop thru type C to type C cable I can read CC status changed in the alert register 0x10 and value 0x04 or 0x08 in cc status register depending on the orientation
but when connecting the 2 ports together I don't detect any changes
from my tests, the only difference is that one of the cc pins get a voltage value when connected to the laptop depending on the orientation but no voltage detected on cc pins when connected to the other port
thanks
