參數資料
型號: PM7351
廠商: PMC-Sierra, Inc.
英文描述: OCTAL SERIAL LINK MULTIPLEXER
中文描述: 八路串行連接復用器
文件頁數: 146/174頁
文件大小: 1790K
代理商: PM7351
RELEASED
PM7351 S/UNI-VORTEX
DATA SHEET
PMC-1980582
ISSUE 5
OCTAL SERIAL LINK MULTIPLEXER
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
136
Fig. 8 Boundary Scan Architecture
Boundary Scan
Register
Control
TDI
TDO
Device Identification
Register
Bypass
Register
Instruction
Register
and
Decode
TRSTB
TMS
TCK
Test
Access
Port
Controller
Mux
DFF
Select
Tri-state Enable
The boundary scan architecture consists of a TAP controller, an instruction
register with instruction decode, a bypass register, a device identification register
and a boundary scan register. The TAP controller interprets the TMS input and
generates control signals to load the instruction and data registers. The
instruction register with instruction decode block is used to select the test to be
executed and/or the register to be accessed. The bypass register offers a single-
bit delay from primary input, TDI to primary output, TDO. The device
identification register contains the device identification code.
The boundary scan register allows testing of board inter-connectivity. The
boundary scan register consists of a shift register place in series with device
inputs and outputs. Using the boundary scan register, all digital inputs can be
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