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Data Mode AT COMMANDS
Table 18. Data Mode Command Descriptions (Continued)
Command
Default
Description
Identification/Checksum Option: This command causes the modem to send product code and
hardware setup information to the DTE.
In
0
n = 0*
ROM Checksum
n=1
Modem name
n=2
Manufacturer
n=3
Chipset
n=4
Firmware version
n=5
Modem chip hardware configuration
n=6
DSP patch level
n = 12
Country code
n = 7–11,
13, 14,
20–25
Reserved
Example:
ATI2
Intel Corporation
OK
Speaker Volume Control: This command selects the modem’s speaker volume.
n=0
Ln
2
Low speaker volume
n = 1*
Low speaker volume
n=2
Medium speaker volume
n=3
High speaker volume
Speaker Control: This command specifies when the speaker is turned on and off.
Mn
1
n=0
Speaker always off
n = 1*
Speaker on until carrier present
n=2
Speaker always on
n=3
Speaker off during dialing, and on until carrier
Go Online: This command causes the modem to return back to online data mode from online command
mode.
On
P
0
none
n = 0*
Returns the modem to data mode
n=1
Begins an equalizer retrain sequence; then returns to data mode
n=3
Renegotiates rate and then returns to data mode
Select Pulse Dialing: This command configures the modem to use pulse dialing next time the modem
dials a telephone number.
Result Code Display Control: This command selects whether the modem sends result codes to the
DTE.
Qn
0
Sn
none
Sn=x
none
n = 0*
Result codes enabled
n=1
Result codes disabled
Select an S-Register: This command selects the current S-register.
n = 0–33
Write to an S-Register: This command writes a decimal number ‘x’ to S-register ‘n’.
n = 0–33
x = 0–255
Sn?
none
Read an S-Register: This command is used to read a decimal number from S-register ‘n’.
n = 0–33
NOTE: An asterisk (*) denotes the factory-default setting.
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536EX Chipset Developer’s Manual
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