Int 14/AH=00h

MBBIOS - INITIALIZE PORT

AH = 00h
AL = port parameters (see #00302)
DX = port number

Return:
AH = line status (see #00304)
AL = modem status (see #00305)

Note: MBBIOS was written by H. Roy Engehausen

See Also: AH=04h"MBBIOS" - AH=05h"MBBIOS" - AH=09h"MBBIOS"


Bitfields for MBBIOS port parameters:

Bit(s)  Description     (Table 00302)
7-5    data rate.
(normally 110,150,300,600,1200,2400,4800,9600 bps;.
9600,14400,19200,28800,38400,57600,115200,330400 bps.
If the high-speed option is set)
4-3    parity (00 or 10 = none, 01 = odd, 11 = even)
2      stop bits (set = 2, clear = 1)
1-0    data bits (00 = 5, 01 = 6, 10 = 7, 11 = 8)

See Also: #00300

Category: Serial I/O - Int 14h - M

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