G - Physics – 11 – C
Patent
G - Physics
11
C
G11C 15/00 (2006.01) G06F 7/74 (2006.01) G11C 7/00 (2006.01) G11C 15/04 (2006.01)
Patent
CA 2365891
A circuit selects a highest priority signal from a plurality of input signals. The circuit comprises the following components. A plurality of serially coupled input blocks, each of which are coupled to a corresponding one of a plurality of input lines for receiving respective ones of the input signals and providing corresponding output signals. A pre-charging device coupled between a supply voltage terminal and a first one of the serially coupled input blocks. The pre- charging device couples the supply voltage to the first one of the serially coupled input blocks in response to a clock pulse signal transition. An activation device for coupling a last one of the serially coupled input blocks to a ground voltage terminal in response to an activation signal transition. A ground voltage is propagated through the plurality of input blocks up to an input block which reflects a voltage on its input signal that is different from a pre-charge voltage state. The ground voltage terminal is subsequently provided as the only logic low output from said plurality of input blocks representing a highest priority match signal.
Foss Richard C.
Roth Alan
Borden Ladner Gervais Llp
Mosaid Technologies Incorporated
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