V.22 bis Modem with AT Commands
CMX866
1.5.4.5 S-Registers
The following table gives a more detailed description of the available S-Registers and their functions.
The register range, units and default values are also listed.
S-Register
Reg Range Units
Description
Default
0-255
Rings
2
S0
Automatic answer - Number of rings until automatic
answer. If the register is zero the modem will not
automatically answer.
0-255
0-127
Rings
0
S1
S2
Count incoming rings - This register is read only and
contains the number of rings detected by the CMX866.
ASCII
Decimal
43
Escape character value - Contains the ASCII decimal
value of the escape character. The default setting is an
ASCII + and the escape sequence is +++. A value over
127 disables the escape sequence.
0-127
0-127
ASCII
Decimal
13
10
S3
S4
Carriage return character - Contains the ASCII decimal
value of the character recognised as the command line
terminator. This character will also be sent at the end of
result codes. The default setting is <CR>.
ASCII
Decimal
Line feed character - Contains the ASCII decimal value
of the character recognised as a line feed. This
character is ignored if present in a command string. The
default setting is <LF>. The CMX866 sends the line feed
character after a carriage return only when word
responses are sent.
0-127
2-255
ASCII
Decimal
8
4
S5
S6
Backspace character - Contains the ASCII decimal
value of the character recognised as a backspace. The
default setting is <BS>.
1s
Wait time for blind dialling - If Blind Dialling is enabled
(see Xn command, Register S22), sets the length of time
to pause after the CMX866 goes off-hook before dialling
the first digit of the directory number.
If Blind Dialling is disabled, sets the length of time to wait
for a dial tone after the CMX866 goes off-hook. If a dial
tone is not received in this time, an 'ERROR' result code
is returned.
1-255
0-255
1s
1s
50
2
S7
S8
Wait for carrier after dial - Sets the length of time the
CMX866 waits for a carrier before returning on-hook.
Pause Time for Comma Dial Modifier - Specifies the
number of seconds to pause for each comma (,)
encountered in a dial string.
1-255
S9
Reserved
ã 2004 CML Microsystems Plc
25
D/866/4
CMLMICRO [ CML MICROCIRCUITS ]
