SECTION 6
Conversions and Interfaces
PEN*KEY
R
6200/6300 Hand-Held Computer Programmer’s Reference Guide 6-65
INT 14h, Function AH = FEh: Get Extended Error
NGENMOD
Programs the Baud Rate Register and Byte Format Register for the selected port
and returns values of the Line Status Register and Modem Status Register.
This interrupt is intercepted and processed entirely by the driver when DX+1 is
equal to the COM port specified on the driver command line.
On Entry:
AH = 0FEh
DX = Port number
(default = 2)
On Return:
AL = Error
1 = Card in slot is a memory device.
03hć08h, 1Eh, 1Fh = Configuration requested not supported by card
14h = No card is in slot.
F0h = Power error.
INT 14h, Function AH = FFh: Communications Port Power Off/On
4000API, NGENMOD, NGENWAN
Turns off the communications port driver power. For NGENMOD, this is the
modem. For NGENWAN, this is the Wireless Wide Area Network (WAN) Card.
This interrupt is intercepted and processed entirely by the driver when DX+1 is
equal to the COM port specified on the driver command line.
On Entry:
AH = 0FFh
DX = Communications port number (default = 2)
AL = Turn communications port power
0 = Off
1 = On
On Return:
None
"
NOTE:
This is a nonstandard PC function. It may not be available in every PC BIOS. Use caution
where portability is a concern.
6. Conversions and
Interfaces
