PM7344 S/UNI-MPH
DATA SHEET
PMC-950449
ISSUE 6
MULTI-PHY USER NETWORK INTERFACE
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 using the Capture-DR state. The sampled values can then be viewed by
shifting the boundary scan register using the Shift-DR state.
IDCODE
The identification instruction is used to connect the identification register
between TDI and TDO. The device's identification code can then be shifted out
using the Shift-DR state.
STCTEST
The single transport chain instruction is used to test out the TAP controller and
the boundary scan register during production test. When this instruction is the
current instruction, the boundary scan register is connected between TDI and
TDO. During the Capture-DR state, the device identification code is loaded into
the boundary scan register. The code can then be shifted out output, TDO using
the Shift-DR state.
14.3.1 Boundary Scan Cells
In the following diagrams, CLOCK-DR is equal to TCK when the current
controller state is SHIFT-DR or CAPTURE-DR, and unchanging otherwise. The
multiplexer in the centre of the diagram selects one of four inputs, depending on
the status of select lines G1 and G2. The ID Code bit is as listed in the Boundary
Scan Register table located in the TEST FEATURES DESCRIPTION - JTAG
Test Port section.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
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PMC [ PMC-SIERRA, INC ]
