SI2493-C-GT Silicon Laboratories Inc, SI2493-C-GT Datasheet - Page 35

• Manufacturer Part Number: SI2493-C-GT
• Description: IC ISOMODEM SYSTEM-SIDE 24TSSOP
• Manufacturer: Silicon Laboratories Inc

Specifications of SI2493-C-GT

• Mfg Application Notes: SI2493/57/34/15/04, Appl Note AN93
• Data Format: V.21, V.22, V.23, V.29, V.32, V.34, V.90, V.92, Bell 103, Bell 212A
• Baud Rates: 56k
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 24-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

+DS44 =
A,B,C,D,E,F,G,
H,I
+ES = A, B, C Enable synchronous access mode
Command
Controls V.44 data compression function*.
A
B
C
D
E
F
G
H
I
*Note: Si2493 only
A – specifies the mode of operation when initiating a modem connection
B – This parameter should not be used.
C – Specifies the mode of operation when answer a modem connection
entered.
Direction
0
1
2
3
Compression_negotiation
0
1
Capability
0
1
2
Max_codewords_tx 256 to 65536
Max_codewords_rx 256 to 65536
Max_string_tx 32 to 255
Max_string_rx 32 to 255
Max_history_tx ≥ 512
Max_history_rx ≥ 512
D = Disable synchronous access mode
6 = Enable synchronous access mode when connection is completed and data state is
D = Disable synchronous access mode
8 = Enable synchronous access mode when connection is completed and data state is
entered.
No compression (V.42bis P0 = 0)
Do not disconnect if Rec. V.42 is not negotiated
Transmit only
Receive only
Both Directions (V.42bis P0 = 11)
Disconnect is Rec. V.42 is not negotiated
Stream method
Packet method
Multi-packet method
Table 18. Basic AT Command Set (Continued)
Rev. 0.9
Action
AN93
35