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参数资料
| 型号： | DS26334 |
| 英文描述： | 3.3V, 16-Channel, E1/T1/J1 Short and Long-Haul Line Interface Unit |
| 中文描述： | 3.3V、16路、E1/T1/J1短/长程线路接口单元 |
| 文件页数： | 90/115页 |
| 文件大小： | 756K |
| 代理商： | DS26334 |
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DS26334 3.3V, 16-Channel, E1/T1/J1 Short/Long-Haul Line Interface Unit
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Update-DR
A falling edge on TCLK while in the update-DR state will latch the data from the shift register path of the test
registers into the data output latches. This prevents changes at the parallel output due to changes in the shift
register.
Select-IR-Scan
All test registers retain their previous state. The instruction register will remain unchanged during this state. With
TMS LOW, a rising edge on TCLK moves the controller into the capture-IR state and will initiate a scan sequence
for the instruction register. TMS HIGH during a rising edge on TCLK puts the controller back into the Test-logic-
reset state.
Capture-IR
The capture-IR state is used to load the shift register in the instruction register with a fixed value. This value is
loaded on the rising edge of TCLK. If TMS is HIGH on the rising edge of TCLK, the controller will enter the exit1-IR
state. If TMS is LOW on the rising edge of TCLK, the controller will enter the shift-IR state.
Shift-IR
In this state, the shift register in the instruction register is connected between TDI and TDO and shifts data one
stage for every rising edge of TCLK towards the serial output. The parallel registers as well as all test registers
remain at their previous states. A rising edge on TCLK with TMS HIGH will move the controller to the exit1-IR state.
A rising edge on TCLK with TMS LOW will keep the controller in the shift-IR state while moving data one stage
thorough the instruction shift register.
Exit1-IR
A rising edge on TCLK with TMS LOW will put the controller in the pause-IR state. If TMS is HIGH on the rising
edge of TCLK, the controller will enter the update-IR state and terminate the scanning process.
Pause-IR
Shifting of the instruction shift register is halted temporarily. With TMS HIGH, a rising edge on TCLK will put the
controller in the Exit2-IR state. The controller will remain in the Pause-IR state if TMS is LOW during a rising edge
on TCLK.
Exit2-IR
A rising edge on TCLK with TMS High will put the controller in the Update-IR state. The controller will loop back to
shift-IR if TMS is LOW during a rising edge of TCLK in this state.
Update-IR
The instruction code shifted into the instruction shift register is latched into the parallel output on the falling edge of
TCLK as the controller enters this state. Once latched, this instruction becomes the current instruction. A rising
edge on TCLK with TMS LOW will put the controller in the run-test-idle state. With TMS HIGH, the controller will
enter the select-DR-scan state.
相关PDF资料 |
PDF描述 |
|---|---|
| DS26334G | 3.3V, 16-Channel, E1/T1/J1 Short and Long-Haul Line Interface Unit |
| DS26334GN | 3.3V, 16-Channel, E1/T1/J1 Short and Long-Haul Line Interface Unit |
| DS26503 | T1/E1/J1 BITS Element |
| DS26503L | T1/E1/J1 BITS Element |
| DS26503LN | T1/E1/J1 BITS Element |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS26334_07 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:3.3V, 16-Channel, E1/T1/J1 Shortand Long-Haul Line Interface Unit |
| DS26334DK | 功能描述:网络开发工具 DS26334 Dev Kit 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 |
| DS26334G | 功能描述:电信集成电路 3.3V E1/T1/J1 16Ch Short/Long Haul LIU RoHS:否 制造商:STMicroelectronics 类型:Telecom IC - Various 工作电源电压:4.75 V to 5.25 V 电源电流: 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-100 封装:Tray |
| DS26334G+ | 功能描述:电信集成电路 3.3V E1/T1/J1 16Ch Short/Long Haul LIU RoHS:否 制造商:STMicroelectronics 类型:Telecom IC - Various 工作电源电压:4.75 V to 5.25 V 电源电流: 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-100 封装:Tray |
| DS26334GA2 | 功能描述:电信集成电路 RoHS:否 制造商:STMicroelectronics 类型:Telecom IC - Various 工作电源电压:4.75 V to 5.25 V 电源电流: 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-100 封装:Tray |
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