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| 型号： | SI2457-D-GT |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 19/60页 |
| 文件大小： | 0K |
| 描述： | IC ISOMODEM GLOBAL DAA 24TSSOP |
| 标准包装： | 62 |
| 系列： | * |
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Si2457/34/15/04
26
Rev. 1.3
+ESA Options
+ESA = A
+ESA = A,B
+ESA = A,B,C
+ESA = A,B,C,E
+ESA = A,B,C,E,F
+ESA = A,B,C,E,F,
G
Synchronous access mode control options
A
Specifies action taken if an underrun condition occurs during transparent sub-mode.
0
Modem transmits 8-bit SYN sequences on idle.
B
Specifies action taken if an underrun condition occurs after a flag during framed sub-
mode
0 Modem transmits 8-bit HDLC flags on idle.
C
Specifies action taken if an underrun or overrun condition occurs after a non-flag during
framed sub-mode.
0
Modem transmits abort on underrun in middle of frame.
1
Modem transmits flag on underrun in middle of frame and notifies host of underrun
or overrun.
D
Specifies V.34 half duplex operation.
This parameter should not be used.
E
Specifies CRC polynomial used while in framed sub-mode.
0 CRC generation checking disable.
1 16-bit CRC generation and checking is performed by the modem.
F
Specifies NRZI encoding and decoding.
0
NRZI encoding and decoding disabled.
G
Specifies SYN.
255
+FCLASS = X
Class 1 Mode Enable for V.29 fast connect.
X
Mode
0Off
1
Enables support for Class 1 mode for use in the V.29 fast connect mode.
+FRM = X
Class 1 Receive Carrier for V.29 fast connect.
X
Mode
2
Transmit V.21 (980 Hz) tone for longer than 100 ms, then send answer tone
(2100/2225 Hz) for 200 ms.
95
V.29 short synchronous.
96
V.29 full synchronous.
+FTM = X
Class 1 Transmit Carrier for V.29 fast connect.
X
Mode
2
Transmit V.21 (980 Hz) tone.
53
Same as &T4, but transmit V.29 7200 bps. Data pattern set by S40 register. AT +
FCLASS = 0 must be sent to restore the ISOmodem to normal operation after
test.
54
Same as &T4, but transmit V.29 9600 bps. Data pattern set by S40 register. AT +
FCLASS = 0 must be sent to restore the ISOmodem to normal operation after test.
95
V.29 short synchronous.
96
V.29 full synchronous.
Table 8. Basic AT Command Set (Command Defaults in Bold) (Continued)
Command
Action
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相关代理商/技术参数 |
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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 |
| Si2457FS08-EVB | 功能描述:网络开发工具 16-pin Si2457+Si3008 ISOmodem Eval Board RoHS:否 制造商:Rabbit Semiconductor 产品:Development Kits 类型:Ethernet to Wi-Fi Bridges 工具用于评估:RCM6600W 数据速率:20 Mbps, 40 Mbps 接口类型:802.11 b/g, Ethernet 工作电源电压:3.3 V |
| Si2457FS18-EVB | 功能描述:网络开发工具 16-pin Si2457+Si3018 ISOmodem Eval Board RoHS:否 制造商:Rabbit Semiconductor 产品:Development Kits 类型:Ethernet to Wi-Fi Bridges 工具用于评估:RCM6600W 数据速率:20 Mbps, 40 Mbps 接口类型:802.11 b/g, Ethernet 工作电源电压:3.3 V |
| SI2457-FT | 功能描述:电信线路管理 IC CONTACT SILICON LABS FOR AVAILABILITY RoHS:否 制造商:STMicroelectronics 产品:PHY 接口类型:UART 电源电压-最大:18 V 电源电压-最小:8 V 电源电流:30 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VFQFPN-48 封装:Tray |
| Si2457FT08-EVB | 功能描述:网络开发工具 24-pin Si2457+Si3008 ISOmodem Eval Board RoHS:否 制造商:Rabbit Semiconductor 产品:Development Kits 类型:Ethernet to Wi-Fi Bridges 工具用于评估:RCM6600W 数据速率:20 Mbps, 40 Mbps 接口类型:802.11 b/g, Ethernet 工作电源电压:3.3 V |
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