Intel Corporation

Hou-Sheng Lin

Andrew M Volk

Robert J Riesenman

Romesh B Trivedi

Jennefer Asperheim

A method and apparatus for high throughput multiplexing of data is described. It includes a circuit including: A first multiplexer having an output, a first input, a second input, and a selector. A second multiplexer having an output, a first input, a second input, and a selector, the output of the second multiplexer coupled to the first input of the first multiplexer. A third multiplexer having an output, a first input, a second input, and a selector, the output of the third multiplexer coupled to the second input of the first multiplexer; and the selector of the first multiplexer to select an input with a stable signal.

Method and apparatus for high throughput multiplexing of data

A method and circuit for programming an output buffer having a first output driver for producing a first signaling level with a first programmable strength and a second output driver for producing a second signaling level with a second programmable strength. The method includes coupling a test resistor between a source of the second signaling level and a mode terminal, sensing a first level at the mode terminal, and uncoupling the test resistor from the mode terminal. If the first level is between the second signaling level and a reference level, then programming the output buffer with reference to an unterminated transmission line coupled to the mode terminal. Otherwise, programming the output buffer with reference to an external resistor coupled between a source of the first signaling level and the mode terminal. The circuit includes a first counter coupled to the first comparator to produce a first value responsive to the mode flag, the mode terminal, and the reference level. A first latch, coupled to the first counter, provides the adjusted first value to the first output driver. A second latch, coupled to the second counter, provides the adjusted second value to the second output driver.

Growing community of inventors

Sacramento, CA, United States of America

Hou-Sheng Lin