Product Description: S25 Fastpass ATG

ATGEN® software automatically generates high coverage functional test vectors for all types of Programmable Logic Devices (PLDs), including PALs®, FPLAs, FPGAs, FPLSs, and other architectures. These vectors are applied after programming, on a programmer or in-circuit board tester. Testing PLDs individually prior to functional board test or system test results in large savings in testing, diagnosis, repair, and inventory costs. This product is one of a family of ATG products for PLDs that meets the needs of electronic equipment manufacturers and their suppliers in all areas of PLD testing.

This S25 FASTpass product is an effective low-cost generator for customers who want fast test generation of simple tests which will detect the most common assembly related defects.

Feature Descriptions and Product Capabilities


• No fixed limit - depends on host computer resources

Target Application

• Fast generation of short tests to detect catastrophic failures (blank devices, wrong orientation, wrong device, etc.), primarily at board test.

Vector generation strategies/algorithms

• Expedient: Critical-path backtrace technique for shallow circuitry


• Low-cost

• Fast generation

• Ideal for detecting the following common board test defects: unprogrammed parts, part in backwards, wrong part/mislabeled part, catastrophic device failure, numerous open pins

Tester support

• PLD programmers

• Component testers, translators available

• In-circuit board testers, translators available

Support included

• 1 year telephone support

• 1 year software updates

Quality of vectors

• Functional, no preload

• Automatic race detection and repair

• Automatic conflict detection and repair on bidirectional pins

Ease of use

• Menu and fill-in-the-form interface

• Batch facility

• Comprehensive manual

• Generate equations from JEDEC file in pin-number format

• Utility to generate detected & non-detected fault lists

• Pinswapping utility to convert vectors between DIP & LCC pinouts

User controllable options

Detection goal

Time limit

• Maximum number of vectors

• Maximum burst size

• Use vectors from source JEDEC file?

• First vector # to use

• Use C and K in vectors?

• Mark unknown state with X, F, N

• Verbose print to screen?

• Clock format: non-return, return-to-zero, mixed

• Vector minimization: low, moderate, maximum

• Tri-state testing: none, pull-high, pull-low, midband

• Initialization, 4 options: unknown, powerup low, powerup high, seed vectors

• Possible detects optimally analyzed in fault simulator?

• Expect state reduction, 2 options: all cares, detects only

• Fault classes, 6 settings: pins, logic, logic+intact, logic+intact+blown, Mil454,

• Mil454+blown

• Bidirectional pins, 7 settings controlling transient and settled state I/O contention prevention

• Type of test, 6 settings: functional, functional+DC, functional+DC+AC, in-circuit board, device+board, custom details

• Pins constrained: tied high, low or together, or not fixtured. Output and bidirectional pins may be joined.

• FASTpass Mode achieves faster throughput if run time is critical

• Simulation & fault grading

• Event-driven, time-based algorithms

• Concurrent fault simulation

• Fault classes: pins, logic, intact fuses, blown fuses

• Most up-to-date vector minimization

• Upgrade options

• Credit for original purchase price or current list price (whichever is less) towards higher priced products if Technical Support Service is current.

• Host computers

• 386 (or higher) MS-DOS or Windows NT PC with hard disk and parallel port; VAX/VMS; Alpha, Sun4, Solaris 1.0 &2.3, and SPARC running Sun OS; HP9000/700 running HP-UX

• Licensing

• Signed license, Parallel port key

• Technology

• High software development rate -- small releases every 3-6 months, major releases every 6-12 months.

Latest technology, active engineering

• Most suitable for circuitry that is relatively shallow

Other Options

• Generate models for whole-board simulators, such as Teradyne’s LASAR6 and GenRad’s HILO. Translators to all popular device, board and AC testers (See separate translator document.)

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ATGEN and ACUGEN are registered trademarks and AAACT, AALCA, AAMAX, AALAT, AAQL, SHARPEYE & FASTpass are trademarks of ACUGEN Software, Inc. All other trademarks are the property of their respective holders.