FE_DLCR4
bus_space_read_1(bst, bsh, FE_DLCR4),
bus_space_write_1(bst, bsh, FE_DLCR4, sc->proto_dlcr4);
col = bus_space_read_1(bst, bsh, FE_DLCR4) & FE_D4_COL;
{ FE_DLCR4, 0x08, 0x00 },
{ FE_DLCR4, 0x08, 0x00 },