Setup Pin Constraints

Command Dictionary

 

 

CX — A literal that specifies application of the constant X (unknown) to the chosen primary input pins. If the value of the pin changes during the scan operation, the tool uses the non-return waveform.

R0 period offset width — A literal and three integer quadruplet that specifies application of one positive pulse per period.

SR0 period offset width — A literal and three integer quadruplet that specifies application of one suppressible positive pulse during non-scan operation.

CR0 period offset width — A literal and three integer quadruplet that specifies no positive pulse during non-scan operation.

R1 period offset width — A literal and three integer quadruplet that specifies application of one negative pulse per specified period during non- scan operation.

SR1 period offset width — A literal and three integer quadruplet that specifies application of one suppressible negative pulse.

CR1 period offset width — A literal and three integer quadruplet that specifies no negative pulse during non-scan operation.

Where:

period — An integer that specifies the total number of test cycles. The Set Test Cycle command defines the number of timeframes per test cycle.

offset — An integer that specifies the timeframe in which values start to change in each period.

width — An integer that specifies the pulse width of the pulse type waveform.

Examples

The following example sets one primary input to behave as a clock and the rest of the primary inputs to behave as a constant high signal:

set test cycle 2

add pin constraints ph1 r1 1 0 1 setup pin constraints c1

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FastScan and FlexTest Reference Manual, V8.6_4

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Image 638
Mentor v8.6_4 manual Setup Pin Constraints Command Dictionary