R_DUART_MODE_REG_1
__read_sbdchn(sport, R_DUART_MODE_REG_1);
mode1 = read_sbdchn(sport, R_DUART_MODE_REG_1);
write_sbdchn(sport, R_DUART_MODE_REG_1, mode1);
write_sbdchn(sport, R_DUART_MODE_REG_1, V_DUART_BITS_PER_CHAR_8);
oldmode1 = read_sbdchn(sport, R_DUART_MODE_REG_1) & mode1mask;
write_sbdchn(sport, R_DUART_MODE_REG_1, mode1 | oldmode1);