US Robotics 3CP5613 User Manual page 77

S Registers
Note: To change a setting use ATSr=n, where r is the register and n is a decimal value from 0
Register Default Function
S34 0 Bit-mapped register setup. To set registers, see instructions for S13.
Bit
0
1
2
3
4
5
6
7
S35-S37 Reserved
S38 0 Sets an optional delay, in seconds, before a forced hang-up and clearing of the Transmit buffer when DTR drops during an ARQ call.
This allows time for a remote modem to acknowledge receipt of all transmitted data before it is disconnected. The modem immediately
hangs up when DTR drops. This option only applies to connections terminated by dropping DTR. If the modem receives the ATH
command, it ignores S38 and immediately hangs up.
S39-S40 Reserved
Value Result
1 Disable 8S-2D trellis encoding.
2 Disable 16S-4D trellis encoding.
4 Disable 32S-2D trellis encoding.
8 Disable 64S-4D trellis encoding.
16 Disable non-linear coding.
32 Disable TX level deviation.
64 Disable Pre-emphasis.
128 Disable Pre-coding.
T R
ECHNICAL EFERENCE
255 (unless otherwise indicated).
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