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US 7,606,081 B1Granted
Device programmable to operate as a multiplexer, demultiplexer, or memory device
AssigneeAltera Corporation
InventorDavid Jefferson
Life of this patent
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Abstract
A device that is programmable to operate as a memory device, a multiplexer, or a demultiplexer includes: a first column decoder; a memory array coupled to the first column decoder; a plurality of selectors coupled to the memory array; and a second column decoder coupled to the plurality of selectors.
Claims12
A method of multiplexing a first plurality of signals, comprising:
- first selecting a second plurality of signals from the first plurality of signals, wherein the first plurality of signals comprises the second plurality of signals;
- second selecting between a third plurality of signals stored in a memory array and one of the first plurality of signals and the second plurality of signals;
- and
- third selecting a fourth plurality of signals from one of the first plurality of signals and the second plurality of signals, wherein the first plurality of signals comprises the fourth plurality of signals and at least one first additional signal.
1 more element
A method of demultiplexing a first at least one signal, comprising:
- first selecting the first at least one signal;
- second providing a second at least one signal, wherein the second at least one signal comprises the first at least one signal;
- third selecting between the second at least one signal and one of a third plurality of signals stored in a memory array and the first at least one signal;
- and
- outputting a fourth at least one signal that comprises the second at least one signal, wherein the fourth at least one signal further comprises the first at least one signal.
2 more elements
Dependencies are inferred from the claim text.