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INT 14h, 04h (04) Initialize Extended Serial Port PS/2
Sets up the PS/2 Serial Port parameters.
On entry: AH 04h
AL Break:
0 . No Break
1 . Break
BH Parity:
00 . None
01 . Odd
02 . Even
03 . Stick parity odd
04 . Stick parity even
BL Stop Bits:
00 . 1 stop bit
01 . 2 for word length 6, 7, or 8
1. for word length 5
CH Word Length:
00 . 5 bits
01 . 6 bits
02 . 7 bits
03 . 8 bits
CL Baud Rate:
00 . 110 baud
01 . 150 baud
02 . 300 baud
03 . 600 baud
04 . 1200 baud
04 . 2400 baud
04 . 4800 baud
04 . 9600 baud
04 . 19,200 baud
DX Serial Port to Configure
Returns: AL = Modem Status (See Service 03h)
AH = Line Status (See Service 03h)
---------------------------------------------------------------------------
This service configures the PS/2 serial ports. It is recommended over
service 00h.
This is the way you can select the baud rate, word length, parity
settings, and stop bits that are required in serial communications. You
only need to code the settings you want as shown above and call this
service. The PS/2 supports baud rates up to 19,200.
Notes: This service returns modem and line status, as
does Service 03h. (See Service 03h for details.) See
Services 01h and 02h for information on sending and
receiving characters.
See Also:
INT 14h, 01h
INT 14h, 02h
INT 14h, 03h
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