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APPENDIX B: S-REGISTERS
S-Registers, "ATSn=x"
Regist
Dec.
er
S0=
0 - 255
S1=
0 - 255
S2=
0 - 255
S3=
0 - 127
S4=
0 - 127
S5=
0 - 32,
127
S6=
2 - 65
S7=
Function & Description
Set the number of the rings required
before
the
answers
a call. Set "S0=0" to disable auto-
answer mode
Count the incoming rings and store the
value to this register. The value of this
register is incremented with each ring. If
no rings occur over an 8 sec. interval,
this register is cleared. User can read
but should not change this value
S2 holds the decimal value of the ASCII
character used as the escape character.
The default value (043) corresponds to
an ASCII character "+". A value of 128
to 255 disables the escape process, i.e.,
no escape character will be recognized
Hold the decimal value of the Carriage
Return <CR> character used as the
command
line
terminator. Pertain to asynchronous
operation only
Hold the decimal value of the character
recognized as a line feed.The line feed
control character is output after the
carriage return control character if
verbose result code are used.
Hold the decimal value of the character
recognized as a backspace. The modem
will not recognize
character if this register is set to a value
greater than 32
Set the length of time, in seconds, that
the modem must wait (minimum 2
seconds even if the value is less than 2)
after going off-hook before dialing the
first digit of the telephone number
For international version
Set the time, in seconds, that the modem
must wait before hanging up because
carrier is not detected
- 49 -
modem
automatically
and
result
the
backspace
Default
000
000
043
013
code
010
008
003
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