At Command Descriptions - Mitsubishi Electric MIM-A01 Instruction Manual

AT Commands MIM-A01
Command
&Z
%E
%G
-C
+ES
+MS
*NC
+VCID
@D
Tab. 8-23: Overview of AT Commands (2)
8.2.2

AT Command Descriptions

This chapter describes the most important AT commands of the modem. The values marked
with an asterisk (*) are the default values.
+TFORMAT - Sets the data format
Sets the data format of the serial interface.
+TFORMAT="Dataformat"
Dataformat:
Databits:
Parity:
Stopbits:
+TBAUD - Set the baudrate
Sets the baud rate of the serial interface.
+TBAUD="Baudrate"
Baudrate: AUTO (default), 300, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200,
230400
&K - Select Serial Port Flow Control
This command specifies the DTE-to-modem flow control. Software flow control uses the charac-
ters XOFF (13h) and XON (11h) to stop and start data transmission, respectively, both to and
from the DTE. Bidirectional hardware flow control uses RTS/CTS to stop and start data from the
modem
&K0
&K3*
&K4
&D - DTR (Data Terminal Ready) Option
This command controls how the modem responds to DTR. After toggling DTR, the host should
wait 200 ms before modifying the UART registers or sending a new command to the modem.
This is done because the modem does not send an 'OK' message to indicate it has performed
the requested function.
&D0
&D1
&D2*
&D3
8 - 10
Description
Store telephone number (up to 30 digits) to location 'n' (0-3)
Auto-retrain control
Rate renegotiation
Generate data mode calling tone
Error control selection
Modulation selection
CallerID settings
Country code setting
Accept a new firmware image to flash
DatabitsParityStopbits
8, 7
N (none), O (odd), E (even), X (auto-detection, default)
1, 2
Disables flow control
Bi-directional hardware flow control - RTS/CTS
XON/XOFF software flow control
The modem ignores DTR.
The modem switches from data to command mode when an on-to-off transition of DTR occurs.
An on-to-off transition of DTR causes the modem to go on-hook (hang up). While DTR
is off, auto-answer is disabled.
An on-to-off transition of DTR reinitializes the modem. The reinitialize procedure performs the
same function as a power-up reset, except that the UART registers are not reconfigured.
Appendix
MITSUBISHI ELECTRIC