SET END_MEASURE_CYCLE TIME | Timing Command Dictionary |
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∙Each test procedure force event time on a
∙The measure_sco time in the shift procedure, which defines when the scan output measure should occur, is zero.
In some tester formats (such as UTIC), you can specify a separate timing definition for the shift procedure. In this case, the timing rules checker does not consider the shift procedure for compliance with the constraints listed earlier.
Arguments
∙integer
An integer time value specifying the final test cycle length. This number must match the period of the shift procedure.
Examples
The following example specifies a timing definition that satisfies all the constraints described previously. Note that the end_measure_cycle time is greater than the measure_po time. Note also the absence of capture clocks in the timeplate definition. FastScan generates patterns without capture clocks for testing IDDQ faults and observing clock faults at a primary output pin.
Assume the timing file contains the following commands:
SET TIME SCALE 1 ns;
SET END_MEASURE_CYCLE TIME 500; //matches period of shift TIMEPLATE “tp4”
FORCE_PI 0;
BIDI_FORCE_PI 100; WRITE_RAM_CLOCK_ON 200; WRITE_RAM_CLOCK_OFF 300; MEASURE_PO 400;
PERIOD 500; END;
SET PROCEDURE FILE “g1” “design.g1”;
FastScan and FlexTest Reference Manual, V8.6_4 |
