R12A_DATA_SEC
rtwn_write_1(sc, R12A_DATA_SEC,
rtwn_write_1(sc, R12A_DATA_SEC, R12A_DATA_SEC_NO_EXT);
rtwn_write_1(sc, R12A_DATA_SEC, txsc);
rtwn_write_1(sc, R12A_DATA_SEC, ext_chan);
rtwn_write_1(sc, R12A_DATA_SEC, R12A_DATA_SEC_NO_EXT);