INT 14 - Alloy MW386 v2+ - CHANGE PHYSICAL PORT PARAMETERS
AH = 24h
CX = physical I/O port number
DS:DX -> configuration table (see below)
Return: AH = 00h
Note:   invalid port numbers are merely ignored

Format of configuration table:
Offset  Size    Description
00h    BYTE    baud rate
00h 38400
01h 19200
02h  9600
03h  7200
04h  4800
05h  3600
06h  2400
07h  2000
08h  1200
09h   600
0Ah   300
0Bh   150
0Ch   134.5
01h    BYTE    data bits (00h=5, 01h=6, 02h=7, 03h=8)
02h    BYTE    parity (00h none, 01h odd, 02h even)
03h    BYTE    stop bits (00h=1, 01h=2)
04h    BYTE    receive flow control
00h none, 01h XON/XOFF, 02h DTR/DSR, 03h XPC, 04h RTS/CTS
05h    BYTE    transmit flow control (as for receive)

See also: 1796

1424 - Alloy MW386 v2+ - CHANGE PHYSICAL PORT PARAMETERS