13 dte-modem local flow control - +ifc – Rainbow Electronics GM862-QUAD-PY User Manual

Page 48

AT Commands Reference Guide

80000ST10025a Rev. 5 - 09/07/08

page 48 of 434

+IPR - Fixed DTE Interface Rate

SELINT 2

38400
57600
115200

If is set to 0, then automatic speed detection is enabled and also
character format (see +ICF) is set to auto-detect. (default)

If is specified and not 0, DTE-DCE speed is fixed at that
speed, hence no speed auto-detection (autobauding) is enabled.

Note: While in autobauding mode the 300 baud rate is not supported.

AT+IPR?

Read command returns the current value of +IPR parameter.

AT+IPR=?

Test command returns the list of supported autodetectable values
and the list of fixed-only values in the format:

+IPR:(list of supported autodetectable values), (list of fixed-only
values)

Reference V25ter

3.5.3.2.13 DTE-Modem Local Flow Control - +IFC

+IFC - DTE-Modem Local Flow Control

SELINT 0 / 1 / 2

AT+IFC=,

Set command selects the flow control behaviour of the serial port in both
directions: from DTE to modem ( option) and from modem to DTE
()

Parameters:

- 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
- flow control option for the data sent by modem
0 - flow control None
1 - XON/XOFF
2 - C106 (CTS) (factory default)

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 behavior 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