Method and system to facilitate configurable input/output...

Details Method and system to facilitate configurable input/output... Method and system to facilitate configurable input/output...

2009-06-30

2010-12-28

Chang, Daniel D (Department: 2819)

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Bus or line termination

C326S086000, C365S148000

Reexamination Certificate

active

07859298

ABSTRACT:
A method and system to facilitate configurable input/output (I/O) termination voltage reference in a transmitter or receiver. In one embodiment of the invention, the transmitter and receiver, each has a termination circuit to select a suitable termination reference voltage based on the desired coupling type. In one embodiment of the invention, the transmitter has a termination circuit coupled with a transmission driver and the transmitter selects only one of a supply voltage, a ground voltage and a half supply voltage as a termination voltage reference of the transmission driver. The receiver has a termination circuit to select either a supply voltage or a ground voltage as a termination voltage reference of the receiver.

REFERENCES:
patent: 2007/0147106 (2007-06-01), Kyung
patent: 2008/0031166 (2008-02-01), Fukuda

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