Hewlett-Packard Development Company, L.p.

Hewlett-Packard Company

James R Greener

Gregg Bernard Lesartre

Tyler J Johnson

John William Bockhaus

Robert McFarland

Christopher P Woody

A crossbar switch having a plurality of ports that allows a debug process to be performed on the switch using one of the plurality of ports to output chip status information. The switch uses a debug block to store chip status information.

Crossbar switch debugging

A dynamic wide NOR gate with improved precharge node capacitance and leakage. This improves speed for many applications. Two precharge nodes are used instead of one. During the evaluate phase of the dynamic gate, the state of the two precharge nodes may be changed by a number of pulldown FETs. The state of these two precharge nodes are combined by a logic function that is enabled during the evaluate phase of the gate to produce a signal that is latched to produce the wide NOR gate output. This latched signal is also used to provide feedback to the precharge nodes to keep them from discharging due to parasitic effects such as the leakage current.

Wide dynamic &ldquo;NOR&rdquo; gate

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Ft. Collins, CO, United States of America

James R Greener