TC35i Module TC35i Terminal

TC35i AT Command Set
Confidential / Released
2.45 AT+IFC Set Flow Control separately for data directions
The command AT+IFC can be used to set or query the type of flow control separately for each data
direction.
Test command
AT+IFC=?
The Test command returns the values of the supported methods of flow control.
Response
+IFC: (list of supported s), (list of supported s)
OK
Parameter
See write command
Read command
AT+IFC?
Write command
AT+IFC=
,
The Read command returns the currently selected method of flow control.
Response
+IFC: , OK
Parameter
See write command
The parameter setting determines the data flow control on the serial interface.
Response
OK
ERROR
Parameter
(numeric)
Specifies the method that will be used by the TE when data is received
from the TA.
[0] none
1 XON/XOFF. Terminate flow control in the cellular engine.
2 RTS line
3 XON/XOFF. Evaluate flow control in the cellular engine and
pass it through (over the air) to the opposite TE.
(numeric)
Specifies the method that will be used by the TA when data is received
from the TE.
[0] none
1 XON/XOFF
2 CTS line
Reference
V.25ter
Note
The setting of AT+IFC is stored volatile. For use after restart it should be
stored to the user defined profile (AT&W).
The type of flow control set with AT\Qn is valid in both data directions. See
Chapter 2.3.
When using XON/XOFF flow control ( AT+IFC =1,x or AT+IFC =3,x) in data
mode, +++ should not be used while the data transmission is paused with
XOFF. Before entering the command mode with +++ the paused transmission
should be resumed using the XON character.
TC35i_ATC_V01.05 Page 50 of 278 04.08.2003