Patent ID: 7349448
Filing Date: 2008-03-25
Classification: H04J

Abstract:
1. A circuit for multiplexing a plurality of data words including a first data word and a second data word, comprising: a plurality of data connections; first stage logic having a first tristate driver, the first tristate driver configured to receive the first data word from one of the connections and to transmit the first data word received; and second stage logic configured to receive the first data word from the first stage logic and to receive the second data word from another of the plurality of data connections, the second stage logic configured to select for transmission one of the first data word and the second data word based upon a set of select signals, the second stage logic configured to transmit the data word selected for transmission by the second stage logic, the second stage logic having a connection, a second tristate driver, and a third tristate driver, the second tristate driver having an output electrically coupled to an output of the third tristate driver, the second tristate driver configured to receive the first data word from the first tristate driver and to drive the connection of the second stage logic with the first data word if the first data word is selected for transmission by the second stage logic, the third tristate driver configured to receive the second data word and to drive the connection of the second stage logic with the second data word if the second data word is selected for transmission by the second stage logic.