SLAU723A October 2017 – October 2018 MSP432E401Y , MSP432E411Y
At the end of the transfer of the Ethernet frame to the MAC and after the MAC completes the transmission of the frame, the TX/RX delivers a transmit status word (TDES0) to the application. If IEEE timestamping is enabled, the TX/RX Controller returns the specific frame's 64-bit timestamp, along with the transmit status word. The fields for the Transmit Descriptors are described in Section 15.3.3.5.