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Progress Report: P1149.8.1

Progress Report: P1149.8.1. Kenneth P. Parker Agilent Technologies Loveland, CO Board Test Workshop, 2010. What is P1149.8.1?. A standard to support Boundary-Scan based stimulus for testing technologies based on capacitive sensing (a’la “TestJet”)

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Progress Report: P1149.8.1

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  1. Progress Report:P1149.8.1 Kenneth P. Parker Agilent Technologies Loveland, CO Board Test Workshop, 2010

  2. What is P1149.8.1? • A standard to support Boundary-Scan based stimulus for testing technologies based on capacitive sensing (a’la “TestJet”) • Aimed principally at detecting open device pins • Quite useful for “incomplete” nets, such as those with Boundary-Scan on one side, but nothing on the other (e.g, vacant connectors). • Offers a new instruction “Selective_Toggle” • Can create edges, pulses and frequencies on selected I/O pins

  3. TestJet

  4. “Boundary Jet”

  5. Single-ended Pins • Outputs are given the ability to selectively toggle • Inputs are equipped with an output drive capability, that can selectively toggle • Both are recommended to monitor their pin state while doing EXTEST (self-monitors)

  6. Differential Pins • Outputs are given the ability to selectively toggle in two modes: • Balanced (normal differential) • Unbalanced (non-differential) • Both modes needed for opens testing • Inputs are equipped with an output drive capability, that can selectively toggle • Both are recommended to monitor their pin state while doing EXTEST (self-monitors)

  7. Differential Pin Balancing/Unbalancing

  8. Progress to Date • We are closing in on a ballot draft • Work remaining: • Finalize Single-ended and Differential pins • Create BSDL extension • Update Annex on P1149.8.1 and 1149.6 co-existence in a single device • To Ballot by New Years ? (It could happen!) • Want to vote? (Jeff.Burgess@Intel.com)

  9. Thank You !

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