DE910-DUAL AT commands reference guide
80392ST10102A Rev.2 – 2012-07-03
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved
page 48 of 261
+IFC - DTE-Modem Local Flow Control
AT+IFC=<by_te>,
<by_ta>
Set command selects the flow control behaviour of the serial port in both directions:
from
DTE
to
modem
(
<by_ta>
option) and from
modem
to
DTE
(
<by_te>
)
Parameters:
<by_te>
- flow control option for the data received by
DTE
0 - flow control None
1 – XON/XOFF filtered
2 -
C105
(
RTS
) (factory default)
3 – XON/XOFF not filtered
<by_ta>
- flow control option for the data sent by
modem
0 - flow control None
1 – XON/XOFF
2 -
C106
(
CTS
) (factory default)
The supported flow control list as follows
<by_te>
<by_ta>
0
0
0
1
0
2
1
1
2
2
3
1
Note: Software flow control (XON/XOFF) not supported. However, this setting
accepted for the backward-compatibility and it has the same effect with no
flow control.
Note: Hardware flow control (
AT+IFC=2,2
) is not active in command mode.
Note: This command is equivalent to
&K
command.
AT+IFC?
Read command returns active flow control settings.
Note: If flow control behaviour has been set with
AT&Kn
command
with the parameter that is not allowed by
AT+IFC
the read
command
AT+IFC?
will return:
+IFC: 0,0
AT+IFC=?
Test command returns all supported values of the parameters
<by_te>
and
<by_ta>
.
Reference
V25ter
