AT Commands Modem Terminated
159
AT&D
DTR Response
AT+IFC
Cable Interface DTE-DCE Flow Control
Description:
Controls all actions initiated by data terminal ready from DTE
Set command:
AT&D
[<value>]
Parameter:
<value>:
<value>
Description
0
Ignore
Default setting
1
When in on-line data mode: Switch to on-line command
mode
All other states: Disconnect and switch to off-line command
mode
2
Disconnect and switch to off-line command mode
Description:
Controls the flow between the infrared modem and the computer when in on-line data
mode. No flow control is enabled in any of the command modes.
Set command:
AT+IFC
=[<by_te>,[<by_ta>]]
Read command:
AT+IFC?
Displays the current <by_te> and <by_ta> settings.
Test command:
AT+IFC=?
Shows if the command is supported.
Test command
response:
+IFC: (list of supported <by_te>s),(list of supported <by_ta>s)
Parameters:
<by_te>:
<by_te>
Description
0
No flow control on DTE
1
Xon/Xoff flow control on DCE. Control characters are
removed by the DCE interface
2
RTS flow control on DCE
Default setting
3
Xon/Xoff flow control on DCE
Control characters are passed to the remote DCE/DTE
<by_ta>:
<by_ta>
Description
0
No flow control on DCE
1
Xon/Xoff flow control on DTE
2
CTS flow control on DCE
Default setting