SI2434-C-FS Silicon Laboratories Inc, SI2434-C-FS Datasheet - Page 24

• Manufacturer Part Number: SI2434-C-FS
• Description: Modem Chip Chipset 33.6Kbps 16-Pin SOIC
• Manufacturer: Silicon Laboratories Inc

Specifications of SI2434-C-FS

• Package: 16SOIC
• Main Category: Chipset
• Sub-category: ISOmodem
• Maximum Data Rate: 33.6 Kbps
• Typical Operating Supply Voltage: 3.3 V
• Power Supply Type: Digital
• Typical Supply Current: 26 mA
• Minimum Operating Supply Voltage: 3 V
• Maximum Operating Supply Voltage: 3.6 V

Si2457/34/15/04
+DS Options
+DS = A
+DS = A,B
+DS = A,B,C
+DS = A,B,C,D
+ES Options
+ES = A
+ES = A,,C
24
Command
+DR=X
Table 10. Basic AT Command Set (Command Defaults in Bold) (Continued)
Data compression reporting.
X
0
1
If enabled, the intermediate result code is transmitted at the point after error control negotia-
tion. The format of this result code is as follows:
Result code
+DR:NONE
+DR:V42B
+DR:V42B RD
+DR:V42B TD
Controls V.42bis data compression function.
A
B
C
D
Enable synchronous access mode.
A
B
C
Specifies fallback mode of operation.
Disabled
Enabled
Maximum string size
6 to 250 (28 default)
Specifies the mode of operation when initiating a modem connection.
D Disable synchronous access mode.
6 Enable synchronous access mode when connection is completed and data state is
This parameter should not be used.
D Disable synchronous access mode.
8 Enable synchronous access mode when connection is completed and data state is
Mode
Direction
Compression_negotiation
Maximum dictionary size
512
Specifies the mode of operation when answer a modem connection.
0 No compression
1 Transmit only
2 Receive only
3 Both Directions
0 Do not disconnect if V.42 is not negotiated.
1 Disconnect is V.42 is not negotiated.
entered.
entered.
Mode
Data compression is not in use
Rec. V.42bis is in use in both directions
Rec. V.42bis is in use in receive direction only
Rec. V.42bis is in use in transmit directions only
Rev. 1.1
Action