Notice that (CS)TXE seems to have been killed off by Intel and merged into (CS)ME. Modern Atom based platforms now run CSME firmware (LKF - CSME 13.30, JSL - CSME 13.50, EHL - CSME 15.40 etc). The current (CS)TXE platforms (BYT, CHT, BSW, APL, BXT, GLK) remain as they are.