asc_update_bits
asc_update_bits(0, ASCWHBSTATE_CLRPE,
asc_update_bits(0, ASCWHBSTATE_CLRFE,
asc_update_bits(0, ASCWHBSTATE_CLRROE,
asc_update_bits(0, ASCWHBSTATE_CLRPE | ASCWHBSTATE_CLRFE |
asc_update_bits(ASCCLC_DISS | ASCCLC_RMCMASK, (1 << ASCCLC_RMCOFFSET),
asc_update_bits(0, ASCCON_M_8ASYNC | ASCCON_FEN | ASCCON_TOEN |
asc_update_bits(ASCRXFCON_RXFEN, ASCRXFCON_RXFFLU,
asc_update_bits(ASCTXFCON_TXFEN, ASCTXFCON_TXFFLU,
asc_update_bits(0, con, port->membase + LTQ_ASC_CON);
asc_update_bits(ASCCON_R, 0, port->membase + LTQ_ASC_CON);
asc_update_bits(ASCCON_FDE, 0, port->membase + LTQ_ASC_CON);
asc_update_bits(ASCCON_BRS, 0, port->membase + LTQ_ASC_CON);
asc_update_bits(0, ASCCON_R, port->membase + LTQ_ASC_CON);