Int 14/AH=05h

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SERIAL - EXTENDED COMMUNICATION PORT CONTROL (CONVERTIBLE,PS)

AH = 05h
AL = function
00h read modem control register

Return:
BL = modem control register (see #00334) AH = status 01h write modem control register BL = modem control register (see #00334)

Return:
AX = status. DX = port number

Note: Also supported by ArtiCom

See Also: AH=00h - AH=1Fh - AX=8000h"ARTICOM" - AH=FBh

Bitfields for modem control register: Bit(s) Description (Table 00334) 0 data terminal ready 1 request to send 2 OUT1 3 OUT2 4 LOOP 5-7 reserved

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

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