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參數(shù)資料
| 型號： | LXT381BE |
| 廠商： | INTEL CORP |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | Octal E1 Line Interface Unit |
| 中文描述： | DATACOM, PCM TRANSCEIVER, PBGA160 |
| 封裝： | PLASTIC, BGA-160 |
| 文件頁數(shù)： | 19/36頁 |
| 文件大?。?/td> | 218K |
| 代理商： | LXT381BE |
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Octal E1 Line Interface
—
LXT381
Datasheet
19
3.2.1
TAP Controller
The TAP controller is a 16 state synchronous state machine controlled by the TMS input and
clocked by TCK. See
Figure 7
. The TAP controls whether the LXT381 is in reset mode, receiving
an instruction, receiving data, transmitting data or in an idle state.
Table 3
describes in detail each
of the states represented in
Figure 7
.
Table 3. TAP State Description
State
Description
Test logic reset
In this state the test logic is disabled. The device is set to normal operation mode. While in this state, the
instruction register is set to the ICODE instruction.
Run -test/idle
The TAP controller stays in this state as long as TMS is low. Used to perform tests.
Capture - DR
The Boundary Scan Data Register (BSR) is loaded with input pin data.
Shift - DR
Shifts the selected test data registers by one stage toward its serial output.
Update - DR
Data is latched into the parallel output of the BSR when selected.
Capture - IR
Used to load the instruction register with a fixed instruction.
Shift - IR
Shifts the instruction register by one stage.
Update - IR
Loads a new instruction into the instruction register.
Pause - IR
Pause - DR
Momentarily pauses shifting of data through the data/instruction registers.
Exit1 - IR
Exit1 - DR
Exit2 - IR
Exit2 - DR
Temporary states that can be used to terminate the scanning process.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LXT381LE | Octal E1 Line Interface Unit |
| LXT381 | Octal E1 Line Interface Unit |
| LXT386 | QUAD T1/E1/J1 Transceiver |
| LXT400 | All Rate Extended Range Switched 56/DDS Transceiver |
| LXT441 | Switched 56/DDS Integrated DSU/CSU |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LXT381LE | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Octal E1 Line Interface Unit |
| LXT384/LXT386/LXT388 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LXT384/LXT386/LXT388 - LXT384/6/8 Twisted Pair Interface Without Component Changes |
| LXT384BE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecomm/Datacomm |
| LXT384LE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecomm/Datacomm |
| LXT386 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:QUAD T1/E1/J1 Transceiver |
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