INT 14 - 3com BAPI SERIAL I/O - GET ECM WATCH STATE                             
	AH = B2h
Return: AH = return code (00h,07h,0Ah) (see #00394)
	AL = watch flag (00h disabled, 01h enabled)
Desc:	determine whether the ECM character is enabled
SeeAlso: AH=B0h,AH=B1h