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| Acculogic
Boundary Scan |
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Introduction |
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> Introduction
> Hardware
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Changes in device packing technology (SMT), shrinking
component geometries, increasing device pin-count and disappearance of test pads has
challenged the practicality of conventional test in many applications.
The move in most designs to operate at higher frequencies had further shortened the
distances between semiconductor devices. |
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Increased complexity and lack of physical access to circuits makes testing costly and
time-consuming. Design for test (DFT) is required to manage complexity, minimize test
development time and reduce overall manufacturing costs. |
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IEEE 1149.1, also known as JTAG or Boundary Scan, was introduced in 1990.
This standard
endeavors to solve test and diagnostic problems arising from loss of physical access
caused by the increasing use of high pin count and BGA devices, multi-layer PCBs, and
densely packed circuit board assemblies. |
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The standard outlines predefined protocols for testing and diagnosing manufacturing faults.
It also provides a means for On-Board programming of non-volatile memory devices such as
Flash or In-System programming of devices like PLDs and CPLDs. |
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Limited Access Testing with Boundary Scan
Acculogic offers a
powerful suite of PC-based hardware and software tools specially designed for testing of
electronic devices, boards and systems using the IEEE 1149.1 standard.
Acculogic Boundary Scan Test (BST) suite can be effectively used in the entire product
life cycle, starting with design verification and validation then in pilot production and
manufacturing. Use of the system in field service and repair depots can help further to
reduce the cost and cycle time |
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On Board Device Programming with Boundary Scan
FlashRiter is an
integrated set of hardware and software tools that provide a unique environment for
high-speed On-Board Programming (ISP/ISC) of CPLDs, PLDs, FRGAs and other programmable
parts.
FlashRiter's Boundary Scan controller relies on Acculogic's proprietary Adaptive Clocking
technology to provide the fastest and most reliable means for delivering program data to
the target. |
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Click here for more spec
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