5
5.0 S Registers
The S register commands are summarized in Table 5-1. The range of possible
values and the factory default value for each S register are also shown. The
factory default values are used whenever the &F command is received or a parity
error is detected in the NVRAM upon modem power turn-on.
The user-defined S registered default values are used at modem power turn-on
or when a modem reset is received. If the NVRAM is not available or contains a
parity error, the factory default S register values are used.
The S registers are described in Table 5-2.
Reading an S Register
The command Sn? reads the current value of an S register, where “n” is the
decimal number of the register.
Example: To read the current value in register S0 (Ring to Answer On) and S7
(Wait Time for Data Carrier), perform the following:
Enter: AT S0? S7? (Value in register S0? Value in register S7?)
A typical response to the might be:
Result: 001 (modem will answer on first ring)
Result: 030 (modem will wait 30 seconds for a carrier)
Result: OK (command completed)
D224ATLVDSC
Conexant
5-1
CONEXANT [ CONEXANT SYSTEMS, INC ]
