RXSTAT_PARITY
if (rxs & RXSTAT_PARITY)
if (rxs & RXSTAT_PARITY)
port->read_status_mask |= RXSTAT_FRAME | RXSTAT_PARITY;
port->ignore_status_mask |= RXSTAT_FRAME | RXSTAT_PARITY;
#define RXSTAT_ANYERR (RXSTAT_FRAME|RXSTAT_PARITY|RXSTAT_OVERRUN)