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AH = 02h AL = 00h (ArtiCom) DX = port number (00h-03h (04h-43h for Digiboard XAPCM232.SYS))
Return:
AH = line status (see #00304) AL = received character if AH bit 7 clear
Notes: Will timeout if DSR is not asserted, even if function 03h returns data ready. Various network and serial-port drivers support the standard BIOS functions with interrupt-driven I/O instead of the BIOS's polled I/O. The 1993/04/08 Compaq system ROM uses only the low two bits of DX
See Also: AH=01h - AH=02h"FOSSIL" - AH=84h - AH=FCh
Category: Serial I/O - Int 14h - S
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