These Ethernet controllers have different programming models and hardware implementations.
Details you can find in
Chapter 3 “Datapath Three Speed Ethernet Controller (dTSEC)” of the QorIQ Data Path Acceleration Architecture (DPAA) Reference Manual.
Chapter 11 “Multirate Ethernet Media Access Controller (mEMAC)” of the LS2088A Family DPAA2 Low-Level Hardware Reference Manual.
Both manuals can be downloaded from the nxp website.
