RDF
tmp = RDF[0][(i << 1) + 0] << 16;
tmp |= RDF[0][(i << 1) + 1] << 0;
if ((ptr->Vers & 0x07) >= 2 || (ptr->RDF & 0x0F) == 2) {
u8 RDF; /* AEN, TRMIOP, & response data format */