Serial interface control commands, 1 at\q flow control, At\q flow control – Siemens TC63 User Manual
Page 89: At\q, L is, 0 wh, Tc63 at command set
TC63 AT Command Set
4. Serial Interface Control Commands
s
TC63_ATC_V00.490
Page 89 of 501
5/24/05
Confidential / Draft - Do not copy
4.
Serial Interface Control Commands
The AT Commands described in this chapter allow the external application to determine various settings related
to the TC63's serial interface.
4.1
AT\Q Flow control
Syntax
Parameter Description
[0]
(&F)
Disable flow control
1
XON/XOFF software flow control
2
Only CTS by DCE (TA)
3
RTS/CTS hardware flow control
Recommended for the following procedures: incoming or outgoing data calls,
fax calls, MUX mode.
Often, the initialization routine of Fax programs includes enabling RTS/CTS
handshake, eliminating the need to issue
3 once again.
Notes
• When using XON/XOFF flow control (
should not be used while the data trans-
mission is paused with XOFF. Before entering the command mode with
the paused transmission should
be resumed using the XON character.
• For compatibility reasons, the
command can be used in Multiplex mode, though the settings will not
take effect. However, be aware that whenever you use the
write command in Multiplex mode and then
save the current configuration to the user profile with
, the changed
setting will become active after
restart.
• Flow control can also be set using
.
Exec Command
AT\Q
[
Response(s)
OK
If RTS/CTS flow control is not supported by interface and
is 2 or 3:
ERROR
Reference(s)
PIN
ASC0 ASC1 USB MUX1 MUX2 MUX3 Charge
4
Last
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