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PM7383 参数 Datasheet PDF下载

PM7383图片预览
型号: PM7383
PDF下载: 下载PDF文件 查看货源
内容描述: 帧引擎和数据链路管理32A256 [FRAME ENGINE AND DATA LINK MANAGER 32A256]
分类和应用:
文件页数/大小: 231 页 / 1917 K
品牌: PMC [ PMC-SIERRA, INC ]
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RELEASED  
PM7383 FREEDM-32A256  
DATASHEET  
PMC-2010336  
ISSUE 1  
FRAME ENGINE AND DATA LINK MANAGER 32A256  
Shift-IR  
The shift instruction register state is used to shift both the instruction register and  
the selected test data registers by one stage. Shifting is from MSB to LSB and  
occurs on the rising edge of TCK.  
Update-IR  
The update instruction register state is used to load a new instruction into the  
instruction register. The new instruction must be scanned in using the Shift-IR  
state. The load occurs on the falling edge of TCK.  
The Pause-DR and Pause-IR states are provided to allow shifting through the  
test data and/or instruction registers to be momentarily paused.  
Boundary Scan Instructions  
The following is a description of the standard instructions. Each instruction  
selects a serial test data register path between input, TDI and output, TDO.  
BYPASS  
The bypass instruction shifts data from input, TDI to output, TDO with one TCK  
clock period delay. The instruction is used to bypass the device.  
EXTEST  
The external test instruction allows testing of the interconnection to other  
devices. When the current instruction is the EXTEST instruction, the boundary  
scan register is place between input, TDI and output, TDO. Primary device  
inputs can be sampled by loading the boundary scan register using the  
Capture-DR state. The sampled values can then be viewed by shifting the  
boundary scan register using the Shift-DR state. Primary device outputs can be  
controlled by loading patterns shifted in through input TDI into the boundary scan  
register using the Update-DR state.  
SAMPLE  
The sample instruction samples all the device inputs and outputs. For this  
instruction, the boundary scan register is placed between TDI and TDO. Primary  
device inputs and outputs can be sampled by loading the boundary scan register  
PROPRIETARY AND CONFIDENTIAL  
185