9XCite"燨EM燫F燤odule?燩roduct燤anual爒2.1燵2007.01.04]
2007燤axStream,營nc.
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3.5. Command Descriptions
Commands and parameters are listed alphabetically. Parameter types and categories are desig-
nated between "< >" symbols. For example: . "AT Command" is the
command/parameter type and "Networking" is the command/parameter category.
AT (Guard Time After) Parameter
<Non-AT Settable Parameter: AT Command Options> AT Parameter is used to set the DI pin silent
time that follows the command sequence character (CC Parameter). By default, 1 half of a second
(500 milliseconds) must elapse before entering another character. The AT Command Mode
Sequence used to enter AT Command Mode is as follows:
"No characters sent for 1 millisecond [BT (Guard Time Before) Parameter]
"Send three plus characters "+++" [CC (Command Sequence Character) Parameter]
"No characters sent for 1 millisecond [AT (Guard Time After) Parameter]
All of the values in this sequence can be adjusted. AT Parameter is used to adjust the period of
silence that follows the command sequence character.
Parameter Range: 0x02 - 0xFFFF (x 1 millisecond)
# of bytes returned: 2
Default Parameter Value: 0x1F4 (500 decimal)
Related Commands: BT (Guard Time Before), CC (Commands Sequence Character)
BD (Interface Data Rate) Parameter
<Non-AT Settable Parameter: Serial Interfacing>
BD Parameter allows the user to adjust the UART
baud rate and thus modify the rate at which serial
data is sent to the modem. Baud rates range from
1200 to 57600 baud (bps). The new baud rate
does not take effect until CN (Exit AT Command
Mode) Command is issued.
Note: If the serial data baud rate is set to exceed
the fixed RF data baud rate of the XCite radio
modem, flow control may need to be imple-
mented.
BI (Number of Bits) Parameter
<Non-AT Settable Parameter: Serial Interfacing>
BI Parameter allows the user to define the num-
ber of data bits between the start and stop bits.
Setting 7 bits and Mark or Space parity (NB
Parameter) will result in a setting of 7 bits and no
parity.
Parameter Ranges: 0 - 6
Parameter
Configuration (bps)
0
1200
1
2400
2
4800
3
9600
4
19200
5
38400
6
57600
Default Parameter Value: Set to equal radio
modem's fixed RF data rate (baud)
Number of bytes returned: 1
Parameter Ranges: 0 - 1
Parameter
Configuration
0
7 bits
1
8 bits
Default Parameter Value: 1
Number of bytes returned: 1
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