Pmc-Sierra, Inc.

Alan Nakamoto

Larrie Simon Carr

Kris Iniewski

Curtis Brian Lapadat

Monika Swic

A bus holder for coupling to an integrated circuit bus driven by a plurality of tri-state devices. The bus holder has a bidirectional port and first and second test ports. Logic circuitry coupled between the respective ports is configured such that application of a logic 0 to the first test port causes the bidirectional port to drive whatever logic value is applied to that port; application of a logic 1 to the first test port and application of a logic 0 to the second test port pulls the bidirectional port down to a logic 0; and, application of a logic 1 to both the first and second test ports pulls the bidirectional port up to a logic 1.

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Richmond, Canada

Alan Nakamoto