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Boundary-Scan I/O Modules |
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Corelis family of SCANIO™
modules turn any IEEE-std-1149.1 boundary-scan controller into
a powerful digital boundary-scan tester. The SCANIO™
family of products use boundary-scan gate arrays to add
control and visibility to connectors, traces, and logic that
is otherwise can not be tested using traditional boundary-scan
techniques.
The SCANIO™
products, when combined with a boundary-scan controller,
operate as a traditional "bed-of-nails" tester except access
to the stimulus and response I/O's is achieved via
boundary-scan.
A listing of available SCANIO™
modules is provided in the following table:
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Product Selection Matrix
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ScanIO-300LV
The ScanIO-300LV digital I/O module turns an IEEE-1149.1
boundary-scan controller (such as the Corelis
PCI-1149.1/Turbo™ or NetUSB-1149.1™) into a powerful
digital interconnect and functional tester. It uses
boundary-scan compatible ASICs to add control and
visibility to connectors, traces, and logic that are
otherwise untestable using traditional scan techniques.
The ScanIO-300LV, combined with a boundary-scan
controller, operates as a traditional “bed of nails”
test system except access to the stimulus-and response
I/Os is achieved via boundary-scan, and the size and the
cost of the system are significantly smaller than
traditional testers.
The ScanIO-300LV module provides a total of 300 fully
bidirectional test channels with virtually unlimited
memory depth per pin. Each line is independently
controlled and can be individually configured as an
input or output. During testing, the programming and
control of the test channels is automatically performed
by the ScanPlus™/ScanExpress™ tools without any user
intervention. The voltage level of the I/O and JTAG
interfaces is programmable from 1.25V to 3.3V and
supports either single ended or low voltage differential
(LVDS) signaling.
Multiple ScanIO-300LV modules can be cascaded in series
providing a sufficient number of pins for almost any
digital test environment. By using single or multiple
ScanIO-300LV modules, existing Automatic Test Pattern
Generators (ATPGs) can be used to test non-scannable
elements such as connectors, cables, and devices not
incorporating boundary-scan. The ScanIO-300LV connects
to the UUT inputs and outputs with standard flat-cables
that can optionally be terminated with test probes. |
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ScanPCI
The ScanPCI boundary-scan based PCI and Compact PCI Card
Tester provides a convenient method to test PCI and
Compact PCI boards and their card-edge connectors. The
ScanPCI adds boundary-scan control and visibility to PCI
and Compact PCI connectors that would otherwise be
untestable or require expensive wiring adapter
harnesses.
Even for those PCI and Compact PCI cards that have been
designed with boundary-scan testing in mind, the
circuitry between the PCI or Compact PCI card edge
itself and the PCI interface devices, which typically
have JTAG capability, is usually not fully boundary-scan
testable. The Corelis ScanPCI™ provides a way to quickly
and easily access these hard to reach connections and
increase the boundary-scan test coverage of the Unit
Under Test (UUT).
The ScanPCI interfaces with a UUT that is either a 3.3V,
5V, or a Universal voltage device. Refer to the detailed
data sheet of the ScanPCI for additional information.
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ScanDIMMs
The ScanDIMM™ Digital Tester modules are an easy to use
tool for interconnect testing of memory DIMM sockets.
Through the use of boundary-scan technology, the
ScanDIMM Tester provides fully bi-directional test
signals. A boundary-scan Test Access Port (TAP)
connects to a host computer which provides virtually
unlimited memory depth for testing each of the DIMM
socket(s) pins.
DIMM sockets are often used for Double Data Rate (DDR)
Synchronous Dynamic Random Access Memory (SDRAM) and
other types of memories and the ScanDIMM offers an
accurate and easy to use mechanical and electrical
solution for testing connections to the DIMM socket(s).
Support is available for a number of DIMM formats
including 184-pin DIMM, 168-pin DIMM, 144-pin SODIMM,
200-pin SODIMM, and 240-pin DIMM.
Please refer to the detailed data sheets for the
ScanDIMM products for additional information.
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ScanPlus Chip Tester
As devices densities increased to
millions of gates with I/O pin counts exceeding 2,000,
the test and verification of silicon devices became
complex, cumbersome, and expensive. The use of high
density packages, such as BGA, with their diminishing
physical access to the pins, required that device
vendors incorporate boundary-scan technology into their
chips.
The ScanPlus Chip Tester performs many of these same
functions that more expensive device testers at a
fraction of the cost, supporting components with up to
2040 I/O pins.
The ScanPlus Chip Tester provides a powerful solution to
the problem of boundary-scan testing and verification,
even with the highest density and most complex
semiconductor devices. Additionally, the ScanPlus Chip
Tester can verify that an ASIC fully complies with the
IEEE-1149.1 standard, the device runs at maximum TCK
speeds, and the BSDL file matches the silicon. |
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