si2493 Silicon Laboratories, si2493 Datasheet - Page 26

• Manufacturer Part Number: si2493
• Description: V.92 Isomodem With Global Daa
• Manufacturer: Silicon Laboratories

Si2493
26
+DS44 Options
+DS44 = A,B,C
+DS = A,B,C,D
+DS44 = A,B
+DS Options
+DS = A,B,C
+ES Options
+ES = A,,C
Command
+DS44 = A
+DS = A,B
+DS = A
+ES = A
+DR=X
Table 8. 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
Controls V.44 data compression function.
A
B
C
Enable synchronous access mode.
A
B
C
D Disable synchronous assess mode.
6 Enable synchronous access mode when connection is completed and data state is
Specifies fallback mode of operation.
D Disable synchronous assess mode.
8 Enable synchronous access mode when connection is completed and data state is
Mode
Disabled
Enabled
Direction
Compression_negotiation
Maximum dictionary size
512
Maximum string size
6 to 250 (28 default)
Direction
Compression_negotiation
Capability
0
Specifies the mode of operation when initiating a modem connection.
This parameter should not be used.
Specifies the mode of operation when answer a modem connection.
0 No compression
1 Transmit only
2 Receive only
3 Both Directions
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.
0 Do not disconnect if V.44 is not negotiated.
1 Disconnect if Rec. V.42 is not negotiated.
entered.
entered.
Stream method
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