SI2457-C-GT Silicon Laboratories Inc, SI2457-C-GT Datasheet - Page 22

• Manufacturer Part Number: SI2457-C-GT
• Description: IC ISOMODEM SYSTEM-SIDE 24TSSOP
• Manufacturer: Silicon Laboratories Inc

Specifications of SI2457-C-GT

• Mfg Application Notes: SI2493/57/34/15/04, Appl Note AN93
• Data Format: V.21, V.22, V.23, V.32, V.34, V.90, Bell 103, Bell 212A
• Baud Rates: 56k
• Interface: Parallel, UART
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 24-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Si2457/34/15/04
H1
In
I0
I1
I3
I6
I7
I8
Ln
L1
L2
L3
Mn
M0
M1
M2
M3
On
O0
O1
O2
Qn
Q0
Q1
R
Sn
S$
Sn?
Sn=x
Vn
V0
V1
22
Command
Table 10. Basic AT Command Set (Command Defaults in Bold) (Continued)
Go off-hook.
Identification and checksum.
Display Si2457/34/15/04 revision code.
B: Revision B
C: Revision C, etc.
Display Si2457/34/15/04 firmware revision code (numeric).
Display line-side revision code.
18C = Si3018 revision C
Display the ISOmodem® model number.
“2404” = Si2404
“2415” = Si2415
“2434” = Si2434
“2457” = Si2457
Diagnostic results 1. See “AN93: Modem Designer’s Guide” for details.
Diagnostic results 2. See “AN93: Modem Designer’s Guide” for details.
Speaker volume operation
Low speaker volume
Medium speaker volume
High speaker volume
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 14 on page 36)
Disable result codes (enable quiet mode).
Initiate V.23 reversal.
S-register operation (see Table 15 on page 39).
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 14 on page 36).
Numeric result codes.
Verbal result codes
Rev. 1.1
Action