SI2434-D-FS Silicon Laboratories Inc, SI2434-D-FS Datasheet - Page 25

• Manufacturer Part Number: SI2434-D-FS
• Description: IC ISOMODEM SYSTEM-SIDE 16SOIC
• Manufacturer: Silicon Laboratories Inc

Specifications of SI2434-D-FS

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

+DS = A,B,C,D
+DS Options
+DS = A,B,C
+ES Options
+ES = A,,C
Command
+DS = A,B
+DS = A
+ES = A
+DR=X
:U
Table 8. Basic AT Command Set (Command Defaults in Bold) (Continued)
User-Access Register Write—This command allows the user to write to the 16-bit user-
access registers. (See page page 44.) The format is “AT:Uaa,xxxx,yyyy,zzzz,...” where
aa = user-access address in hexadecimal.
xxxx = Data in hexadecimal to be written to location aa.
yyyy = Data in hexadecimal to be written to location (aa + 1).
zzzz = Data in hexadecimal to be written to location (aa + 2).
etc.
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.
Direction
Maximum string size
6 to 250 (28 default)
Specifies the mode of operation when initiating a modem connection.
D Disable synchronous assess mode.
6 Enable synchronous access mode when connection is completed and data state is
This parameter should not be used.
D Disable synchronous assess mode.
8 Enable synchronous access mode when connection is completed and data state is
Mode
Disabled
Enabled
Compression_negotiation
Maximum dictionary size
512
Specifies the mode of operation when answer a modem connection.
0
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.
No compression
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. 1.3
Action
Si2457/34/15/04
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