Command Dictionary Set Instruction Atpg
FastScan and FlexTest Reference Manual, V8.6_4 2-511
Set Instruction Atpg
Tools Supported: FlexTest
Scope: Atpg mode
Usage
SET INstruction Atpg OFf | {ON filename}
Description
Specifies whether FlexTest generates instruction-based test vectors using the
random ATPG process.
The Set Instruction Atpg command specifies that during ATPG FlexTest either
generates functional test vectors using the instruction set that you specify in a file
or generates common test vectors using the standard sequential-based ATPG
Typically, instruction-based test vectors are useful for high-end non-scan designs.
Such high-end designs usually contain a large block of logic, like a
microprocessor, that lends itself to instruction-based test vectors.
When you provide an ASCII file containing the information on the instruction set
of a design, FlexTest can randomly combine these instructions to produce a high
coverage functional pattern set. FlexTest first chooses an instruction and then tries
to detect as many faults as possible with that instruction.
For more information on instruction-based test vector sets, refer to “Creating
Instruction-Based Test Sets (FlexTest Only)” in the Scan and ATPG Process
Guide.
Arguments
•OFf
A literal that disables FlexTest from performing instruction-based test
generation. This is the default upon invocation of FlexTest.
•ON
A literal that enables FlexTest to perform instruction-based test generation
using the information you provide in filename.