SLAU723A October 2017 – October 2018 MSP432E401Y , MSP432E411Y
The ULPI PHY interface is a reduced pin-count interface conforms to the UTMI+ specification. The reduction in pin count is achieved by allowing the relatively static UTMI+ signals to be accessed through registers and by providing a bi-directional data bus both for the USB data and for accessing register data on the ULPI transceiver. The PHY interface supports a 12-pin Single Data Rate (SDR) ULPI Standard.