參數(shù)資料
型號： SI2457-D-GT
廠商： Silicon Laboratories Inc
文件頁數(shù)： 21/60頁
文件大小： 0K
描述： IC ISOMODEM GLOBAL DAA 24TSSOP
標(biāo)準(zhǔn)包裝： 62
系列： *
Si2457/34/15/04
28
Rev. 1.3
+IFC Options
+IFC = A
+IFC = A,B
Specifies the flow control to be implemented.
A
Specifies the flow control method used by the host to control data from the modem
0None
1
Local XON/OFF flow control. Does not pass XON/XOFF character to the remote
modem.
2
Hardware flow control (RTS)
B
Specifies the flow control method used by the modem to control data from the host
0 None
1 Local XON/OFF flow control.
2 Hardware flow control (CTS).
+ITF Options
+ITF = A
+ITF = A,B
+ITF = A,B,C
Transmit flow control threshold.
A
Threshold above which the modem will generate a flow off signal
<0 to 511> bytes
B
Threshold below which the modem will generate a flow on signal
<0 to 511> bytes
C
Polling interval for <EM><BNUM> indicator
0 to 300 in 10 msec units.
+MR = X
Modulation reporting control.
X
Mode
0
Disabled
1
Enabled
If enabled, the intermediate result code is transmitted at the point during connect negotiation.
The format of this result code is as follows:
+MCR: <carrier> e.g. +MCR: V32B
+MRR: <rate>
e.g. +MRR: 14400
+MS Options
+MS = A
+MS = A,B
+MS = A,B,C
+MS = A,B,C,D
+MS = A,B,C,D,E
+MS = A,B,C,D,E,F
Modulation Selection.
A
Preferred modem carrier
V21
ITU-T V.21
V22
ITU-T V.22
V22B
ITU-T V.22bis (default for Si2404)
V32
ITU-T V.32
V32B
ITU-T V.32bis (default for Si2415)
V34
ITU-T V.34 (default for Si2434)
V90
ITU-T V.90 (default for Si2457)
B
Automatic modulation negotiation
0
Disabled
1
Enabled
C,D
Min TX rate/Max TX rate are optional numeric values that specify the lowest value
at which the DCE may establish a connection. If unspecified (set to 0), they are
determined by the carrier and automode settings.
E,F
Min RX rate/Max RX rate are optional numeric values which specify the highest
value at which the DCE may establish a connection. If unspecified (set to 0), they
are determined by the carrier and automode settings.
Table 8. Basic AT Command Set (Command Defaults in Bold) (Continued)
Command
Action
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SI2457-D-GTR 制造商:Silicon Laboratories Inc 功能描述:56 KBPS, V.90 ISOMODEM SYSTEM- 制造商:Silicon Laboratories Inc 功能描述:56 KBPS, V.90 ISOMODEM SYSTEM-SIDE - LEAD-FREE - Tape and Reel 制造商:Silicon Laboratories Inc 功能描述:IC ISOMODEM GLOBAL DAA 24TSSOP 制造商:Silicon Laboratories Inc 功能描述:56 kbps V90 ISOmodem System-Side PBF
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