FE_U3EN
if (!(np->features & FE_U3EN))
if ((np->features & (FE_C10|FE_U3EN)) == FE_C10) {
assert(np->features & FE_U3EN);
if (!(np->features & FE_U3EN)) /* Broken U3EN bit not supported */
FE_C10|FE_U3EN}
FE_C10|FE_U3EN}