Int 14/AX=164Fh

AX = 164Fh
BL = size
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)

Return:
AH = status
00h successful
80h error
FFh error

See Also: AH=16h"Digiboard" - AX=164Dh

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