Mitsubishi MIM-A01 Especificações descarregar pdf (Página 44)

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:

DatabitsParityStopbits

Databits: 8, 7

Parity: N (none), O (odd), E (even), X (auto-detection, default)

Stopbits: 1, 2

+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 Disables flow control

&K3* Bi-directional hardware flow control - RTS/CTS

&K4 XON/XOFF software flow control

&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 The modem ignores DTR.

&D1 The modem switches from data to command mode when an on-to-off transition of DTR occurs.

&D2* An on-to-off transition of DTR causes the modem to go on-hook (hang up). While DTR

is off, auto-answer is disabled.

&D3 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.

AT Commands MIM-A01 Appendix

8-10 MITSUBISHI ELECTRIC

Command Description

&Z Store telephone number (up to 30 digits) to location 'n' (0-3)

%E Auto-retrain control

%G Rate renegotiation

-C Generate data mode calling tone

+ES Error control selection

+MS Modulation selection

*NC CallerID settings

+VCID Country code setting

@D Accept a new firmware image to flash

Tab. 8-23: Overview of AT Commands (2)

1 2 ... 39 40 41 42 43 44 45 46 47 48 49 ... 61 62

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