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Editing multiplexer
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== Description == | == Description == | ||
<span style="float:right; display: inline-block;">[[File:3reg mux31.svg|200px|A simple selection of 3 [[register]]s.]]</span> | <span style="float:right; display: inline-block;">[[File:3reg mux31.svg|200px|A simple selection of 3 [[register]]s.]]</span> | ||
− | A multiplxer is a device that receives multiple inputs from usually different sources. A set of select lines are then used to choose which of those inputs gets produced as output. Signals to the select lines usually come from a control unit that | + | A multiplxer is a device that receives multiple inputs from usually different sources. A set of select lines are then used to choose which of those inputs gets produced as output. Signals to the select lines usually come from a control unit that determins which, if any, of the signals should be routed to some destination. MUXes are core components in most digital systems as they can be used to pass the correct signal based on some conditional logic. For example, consider a [[data bus]] that is connected to [[register file|multiple]] memory [[register|storage units]]. One can use a multiplexer to select which of those lines should be going to the shared data bus. |
=== Enable/Tri-State === | === Enable/Tri-State === |