Figure-13 JTAG State Diagram Exit1-IR This is a temporary " />
參數(shù)資料
型號： IDT82V2048LBBG
廠商： IDT, Integrated Device Technology Inc
文件頁數(shù)： 28/48頁
文件大小： 0K
描述： IC LIU T1/E1 8CH SHORT 160-BGA
標準包裝： 14
類型： 線路接口裝置（LIU）
規(guī)程： E1
電源電壓： 3.13 V ~ 3.47 V
安裝類型： 表面貼裝
封裝/外殼： 160-BGA
供應商設備封裝： 160-PBGA（15x15）
包裝： 托盤
其它名稱： 82V2048LBBG
34
IDT82V2048L OCTAL T1/E1 SHORT HAUL ANALOG FRONT END
INDUSTRIAL TEMPERATURE RANGES
Figure-13 JTAG State Diagram
Exit1-IR
This is a temporary state. While in this state, if TMS is held high, a rising edge applied to TCK causes the controller to enter the Update-IR
state, which terminates the scanning process. If TMS is held low and a rising edge is applied to TCK, the controller enters the Pause-IR state.
The test data register selected by the current instruction retains its previous value and the instruction does not change during this state.
Pause-IR
The pause state allows the test controller to temporarily halt the shifting of data through the instruction register. The test data register selected
by the current instruction retains its previous value and the instruction does not change during this state. The controller remains in this state as
long as TMS is low. When TMS goes high and a rising edge is applied to TCK, the controller moves to the Exit2-IR state.
Exit2-IR
This is a temporary state. While in this state, if TMS is held high, a rising edge applied to TCK causes the controller to enter the Update-IR
state, which terminates the scanning process. If TMS is held low and a rising edge is applied to TCK, the controller enters the Shift-IR state.
The test data register selected by the current instruction retains its previous value and the instruction does not change during this state.
Update-IR
The instruction shifted into the instruction register is latched into the parallel output from the shift-register path on the falling edge of TCK.
When the new instruction has been latched, it becomes the current instruction. The test data registers selected by the current instruction
retain their previous value.
Table-16 TAP Controller State Description (Continued)
State
Description
Test-logic Reset
Run Test/Idle
Select-DR
Select-IR
Capture-DR
Capture-IR
Shift-DR
Shift-IR
Exit1-DR
Exit1-IR
Pause-DR
Pause-IR
Exit2-DR
Exit2-IR
Update-DR
Update-IR
1
0
1
00
0
1
0
1
0
1
0
1
0
1
0
1
0
1
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IDT82V2048LDA 功能描述:IC LIU T1/E1 8CH SHORT 144-TQFP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 標準包裝:250 系列:- 類型:收發(fā)器 驅動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:16-TSSOP 包裝:帶卷 (TR)
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