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

BTW What is P ? 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

BTW TestJet

BTW “Boundary Jet”

BTW 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)

BTW 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)

BTW Differential Pin Balancing/Unbalancing

BTW 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 P and co-existence in a single device To Ballot by New Years ? (It could happen!) Want to vote?

BTW Thank You !