Mentor v8.6_4 Manual De Usuario

FastScan and FlexTest Reference Manual, V8.6_4

Scope: Enables special timing rules checking and sets timing information.

SET END_MEASURE_CYCLE TIME integer

Ensures that the primary output measure is the last event of the test cycle, and
moves the measure_sco event to the end of the previous test cycle.

Certain tester formats, such as TDL 91, expect all measures to occur at the end of
the tester cycle. However, the scan output pin comparison always occurs in the
shift procedure prior to the shift clock application. The tester should measure scan
output pins in the shift procedure at the end of the test cycle. Therefore, when you
specify this command, the test pattern formatter safely moves the scan output
measure event to the end of the previous cycle.

Unlike the

 command, this command

ensures that all test cycles have measure events at the end--without splitting the
original test cycle into two. Note that you can specify only one of the following
commands in a timing file:

•

•

•

•

If you place this command in the timing file, the timing rules checker ensures
compliance to the following conditions:

•

All output pin strobes occur in the same timeframe.

•

The period of all pins equals the end_measure_cycle time.