SI2456-FT Datasheet, PDF (23/74 Pages) Silicon Laboratories – V.90, V.34, V.32BIS ISOMODEM® CHIPSET WITH INTEGRATED GLOBAL DAA

Si2456/33/14
Table 8. Basic AT Command Set (Command Defaults in Bold) (Continued)
Command
I0
I1
I3
I6
I7
I8
Mn
M0
M1
M2
M3
On
O0
O1
O2
Qn
Q0
Q1
R
Sn
S$
Sn?
Sn=x
Vn
V0
V1
Xn
X0
X1
X2
X3
Action
Display Si2456/33/14 revision code.
B: Revision B
C: Revision C, etc.
Display Si2456/33/14 firmware revision code (numeric).
Display line-side revision code.
15D = Si3015 revision D
Display the Si2456/33/14 model number.
“2414” = Si2414
“2433” = Si2433
“2456” = Si2456
Diagnostic Results 1. See “AN70: Si2456/Si2433/Si2414/Si2403 Modem Designer’s Guide” for
details.
Diagnostic Results 2. See AN70 for details.
Speaker operation (via AOUT).
Speaker is always off.
Speaker is on while dialing and handshaking; off in Data mode.
Speaker is always on.
Speaker is off while dialing; on during handshaking and retraining.
Return to Data mode from Command mode operation.
Return to Data mode.
Return to Data mode and perform a full retrain (at any speed except 300 bps).
Return to Data mode and perform rate renegotiation.
Response mode.
Enable result codes (see Table 12 on page 35)
Disable result codes (enable quiet mode).
Initiate V.23 reversal.
S-register operation (see Table 13 on page 38).
List contents of all S registers.
Display contents of S-register n.
Set S-register n to value x (where n and x are decimal values).
Result code type (see Table 12 on page 35).
Numeric result codes.
Verbal result codes
Call Progress Monitor (CPM)—This command controls which CPM signals are monitored and
reported to the host from the Si2456/33/14. (See Table 12 on page 35.)
Basic results; disable CPM—Blind dial (does not wait for dial tone). CONNECT message does
not include speed.
Extended results; disable CPM—Blind dial. CONNECT message includes speed.
Extended results and detect dial tone only—Add dial tone detection to X1 mode. Does not blind
dial.
Extended results and detect busy only—Add busy tone detection to X1 mode.
Rev. 1.2
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