The HD3SS3220IRNHT when connected to a USB-C thumb drives only works at super-speed in one orientation.
CC1 is a pulse train, 24ms high, 54ms low. Peak voltage is 0.56V
CC2 is a pulse train, 24ms high, 54ms low. Peak voltage is 4.80V
CC1 and CC2 swap voltage levels when the cable is flipped.
When no thumb drive is present both CC1 and CC2 pulse at 4.80V
Port pin is floating
ENn_MUX is grounded
ENn_CC transitions from high to low about 10us after power up.
The DIR pin is always high (200K pullup to 3.3V)
The I2C interface is not being used.
3.3V powers up before 5V.
Any suggestions would be most appreciated.
