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    The initialization parameter byte is defined as follows:
    7 6 5                4 3               2                    1 0
    Baud Rate            Parity            Stop Bits            Word Length
    ═════════            ═══════           ═════════            ═══════════
    000=110              X0=none           0=1 bit              10=7 bits
    001=150              01=odd            1=2 bits             11=8 bits
    010=300              11=even
    011=600
    100=1200
    101=2400
    110=4800
    111=9600
 
    To initialize the serial port for data rates greater than 9600 baud on
    PS/2 machines, see Int 14H Functions 04H and 05H.
                                    -♦-