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参数资料
| 型号： | SI2457-D-GT |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 25/60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
Rev. 1.3
31
&H4
ITU-T V.32bis with automatic fallback (14.4 kbps to 300 bps) (default for Si2415)
&H5
ITU-T V.32bis only (14.4 kbps to 4800 bps)
&H6
ITU-T V.22bis only (2400 bps or 1200 bps)
&H7
ITU-T V.22 only (1200 bps)
&H8
Bell 212 only (1200 bps)
&H9
Bell 103 only (300 bps)
&H10
ITU-T V.21 only (300 bps)
&H11
V.23 (1200/75 bps)
&Pn
Japan pulse dialing
&P0
Configure Si2457/34/15/04 for 10 pulse-per-second pulse dialing. For Japan.
&P1
Configure Si2457/34/15/04 for 20 pulse-per-second pulse dialing. For Japan.
&Tn
Test mode
&T0
Cancel test mode (Escape to command mode to issue AT&T0). This command will also report the
number of bit errors encountered on the previous &T4 or &T5 test.
&T2
Initiate ITU-T V.54 (ANALOOP) test. Modulation set by &H AT command. Test loop is through the
DSP (Si2457/34/15/04 device) only. ISOmodem echoes data from TX pin (Register 0 in parallel
mode) back to RX pin (Register 0 in parallel mode).
&T3
Initiate ITU-T V.54 (ANALOOP) test. Modulation set by &H AT command. Test loop is through the
DSP (Si2457/34/15/04), DAA interface section (Si2457/34/15/04), DAA interface (Si3018), and ana-
log hybrid circuit (Si3018). ISOmodem echoes data from TX pin (Register 0 in parallel mode) back to
RX pin (Register 0 in parallel mode). Phone line termination required as in Figure 1. To test only the
link operation, the hybrid and AFE codec can be removed from the test loop by setting the DL bit
(U62, bit 1).
&T4
Initiate transmit as originating modem with automatic data generation. Modulation, data rate, and
symbol rate are set by &H, &G, and S41. Data pattern is set by the S40 register. Continues until the
ATH command is sent after an escape into command mode. Data is also demodulated as in
ANALOOP, and any bit errors are counted to be displayed after the test using &T0.
&T5
Initiate transmit as answering modem with automatic data generation. Modulation, data rate, and
symbol rate are set by &H, &G, and S41. Data pattern is set by the S40 register. Continues until the
ATH command is sent after an escape into command mode. Data is also demodulated as in
ANALOOP, and any bit errors are counted to be displayed after the test using &T0.
&T6
Compute checksum for firmware-upgradeable section of program memory. If no firmware upgrade is
installed, &T6 returns 0x4474.
&Xn
Automatic determination of telephone line type.
&X0
Abort &x1 or &x2 command.
Table 9. Extended 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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