SET Procedure File g1 design.g1

SET END_MEASURE_CYCLE TIME	Timing Command Dictionary

∙Each test procedure force event time on a non-clock pin corresponds to the force_pi time in the super timeplate.

∙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;