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S22 For changing the S22 Register use the following AT
commands for changing the response ranges:
ATX0 responses 0-4 are enabled
ATX1 responses 0-5, 10 are enabled
ATX2 responses 0-5, 10 are enabled
ATX3 responses 0-5, 7, 10 are enabled
ATX4 responses 0-5, 7, 8, 10 are enabled
ATX5 all responses are enabled
16
S22 Bit-mapped options: bits 4, 5 and 6.
bits 6
&5&4: 000=ATX0, 100=ATX1, 101=ATX2,
110=ATX3,
111=ATX4, 001=ATX5
E.g. if bit 4 is 0 and bits 5 and 6 are 1, the command
ATX3 has been executed.
16
S25 Detect DTR change (seconds). 0
S27 For defining the communication mode option and
changing the S27 Register use the ATQn command:
AT
&Q0 for the normal asynchronous operation,
AT
&Q2 for the DTR controlled dialling (on the DTR
ON-OFF
transition the terminal adapter automatically dials
the number
in the slot
&Z0).
Bit-mapped options: bit 1.
bit 1: 0=AT
&Q0, 1=AT&Q2
0
S34 Local flow control
0=none
1=XON/XOFF
2=CTS/RTS
3=both XON/XOFF and CTS/RTS
2
S-Reg Unless otherwise specified the value range
Default
of the settings is from 0 to 255
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