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Managing complex boundary-scan operations
March-April 2012 (vol. 29 no. 2)
pp. 100-102
B. Eklow, Cisco Syst., Inc., San Jose, CA, USA
The IEEE 1149.1 Standard for Test Access Port and Boundary-Scan Architecture was approved and released in 1990. Since that time, there have been two supplements and one revision to the standard. A second revision is currently in process. The 1149.1 standard was originally developed to address board level test access issues while at the same time enabling access to test logic inside the device. As technology has scaled over the last 20+ years, component and board level density and complexity have grown significantly. A new class of defects (Timing, Power, Signal Integrity) has also become more prevalent and much more difficult to detect.
Index Terms:
logic testing,boundary scan testing,IEEE standards,logic circuits,timing,complex boundary-scan operations,IEEE 1149.1 standard,Test Access Port and Boundary-Scan Architecture,board-level test access,logic test,component-level density,board-level complexity,signal integrity,IEEE standards,Complexity theory,Registers,IP networks,Testing,Boundary conditions
Citation:
B. Eklow, "Managing complex boundary-scan operations," IEEE Design & Test of Computers, vol. 29, no. 2, pp. 100-102, March-April 2012, doi:10.1109/MDT.2012.2187859
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