INT 14 - SERIAL - EXTENDED INITIALIZE (CONVERTIBLE,PSIBM PS/2, any model)
	AH = 04h
	AL = break status
	    00h if break
	    01h if no break
	BH = parity (see #00307)
	BL = number of stop bits
	    00h one stop bit
	    01h two stop bits (1.5 if 5 bit word length)
	CH = word length (see #00308)
	CL = bps rate (see #00309)
	DX = port number
Return: AX = port status code (see #00304,#00305)
SeeAlso: AH=00h,AH=1Eh,AX=8000h"ARTICOM"


(Table 00307)
Values for serial port parity:
 00h	no parity
 01h	odd parity
 02h	even parity
 03h	stick parity odd
 04h	stick parity even
SeeAlso: #00300,#00308,#00309,#00310


(Table 00308)
Values for serial port word length:
 00h	5 bits
 01h	6 bits
 02h	7 bits
 03h	8 bits
SeeAlso: #00300,#00307,#00309,#00345


(Table 00309)
Values for serial port bps rate:
 00h	110 (19200 if ComShare installed)
 01h	150 (38400 if ComShare installed)
 02h	300
 03h	600 (14400 if ComShare installed)
 04h	1200
 05h	2400
 06h	4800 (28800 if ComShare installed)
 07h	9600
 08h	19200
---ComShare---
 09h	38400
 0Ah	57600
 0Bh	115200
SeeAlso: #00300,#00307,#00309,#00346,#00353,AH=36h,#00364,#00606,#02923
                                                                                

INT 14 - Tandy 2000 - SERIAL - FLUSH COMM BUFFER                                
	AH = 04h
	DL = port number
	DH = protocol
	    bit 0: use XON/XOFF on received data
	    bit 1: use XON/XOFF when transmitting
Return: nothing
Desc:	clears the serial interface buffer
Note:	this interrupt is identical to INT 53 on the Tandy 2000
SeeAlso: AH=00h"Tandy 2000",INT 53"Tandy 2000"
                                                                                

INT 14 - FOSSIL(Fido/Opus/Seadog Standard Interface Layer)  A standardized API for performing serial I/O, originally used by the Fido and Opus bulletin- board software and Seadog bulletin-board mailer, but now in wider use. - INITIALIZE DRIVER
	AH = 04h
	DX = port number
	optionally BX=4F50h
		   ES:CX -> byte to be set upon ^C
Return: AX = 1954h (if successful)
	BL = maximum function number supported (excluding 7Eh and above)
	BH = revision of FOSSIL(Fido/Opus/Seadog Standard Interface Layer)  A standardized API for performing serial I/O, originally used by the Fido and Opus bulletin- board software and Seadog bulletin-board mailer, but now in wider use. specification supported
	DTR is raised
Note:	the word at offset 6 in the interrupt handler contains 1954h, and the
	  following byte contains the maximum function number supported; this
	  can serve as an installation check
SeeAlso: AH=05h"FOSSIL(Fido/Opus/Seadog Standard Interface Layer)  A standardized API for performing serial I/O, originally used by the Fido and Opus bulletin- board software and Seadog bulletin-board mailer, but now in wider use.",AH=1Ch,INT 11/AH=BCh
Index:	installation check;FOSSIL(Fido/Opus/Seadog Standard Interface Layer)  A standardized API for performing serial I/O, originally used by the Fido and Opus bulletin- board software and Seadog bulletin-board mailer, but now in wider use.
                                                                                

INT 14 - MultiDOS Plus IODRV - INITIALIZE PORTIBM PC Portable (uses same BIOS as XT)
	AH = 04h
Return: port initialized; if Hayes-compatible modem, a connection has been
	  established
Note:	the port number is stored at offset BEh in the Task Control Block
	  (see #00456 at INT 15/AH=13h"MultiDOS")
SeeAlso: AH=00h,AH=05h"MultiDOS",AH=20h"MultiDOS",INT 15/AH=13h"MultiDOS"
                                                                                

INT 14 - Digiboard DigiCHANNEL PCIBM PC/X* - CHANGE BAUD RATE
	AH = 04h
	AL = initializing parameters (see #00310)
	BX = baud rate
	DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)
Return: AH = status
	    00h successful
	    FFh error
SeeAlso: AH=05h"Digiboard"


Bitfields for Digiboard initializing parameters:
Bit(s)	Description	(Table 00310)
 7-5	unused
 4-3	parity (00 none, 01 odd, 11 even)
 2	stop bits (0 = one, 1 = two)
 1-0	data bits (00 = five, 01 = six, 10 = seven, 11 = eight)
SeeAlso: #00307,#00308
                                                                                

INT 14 - MBBIOS - INSTALLATION CHECK                                            
	AH = 04h
	DX = port number
Return: AX = AA55h if installed on specified port
SeeAlso: AH=00h"MBBIOS",AH=09h"MBBIOS"