ASIC architecture for active-compensation of a programmable...

Details ASIC architecture for active-compensation of a programmable... ASIC architecture for active-compensation of a programmable...

2005-07-26

2005-07-26

Chang, Daniel (Department: 2819)

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Bus or line termination

C326S086000, C327S109000

Reexamination Certificate

active

06922074

ABSTRACT:
A method of, and a circuit for, impedance control. The method comprises the steps of providing an input/output cell having a controllable input/output impedance, providing a reference cell including a node having a variable voltage, and comparing the voltage of the node to a reference voltage. The voltage of the node is adjusted during a defined period and according to a defined procedure, and during that defined period, a digital signal is generated. That digital signal is transmitted to the input/output cell to adjust the input/output impedance. Preferably, the circuit is embodied as a digital controller designed as a synthesized core or macro. The advantage of this implementation is that it never has to be redesigned in future technologies. The digital controller may be carried over to future technologies in the form of VHDL code, which is pure logic and independent of technology.

REFERENCES:
patent: 5479123 (1995-12-01), Gist et al.
patent: 5581197 (1996-12-01), Motley et al.
patent: 5602494 (1997-02-01), Sundstrom
patent: 5666078 (1997-09-01), Lamphier et al.
patent: 5687330 (1997-11-01), Gist et al.
patent: 5705937 (1998-01-01), Yap
patent: 5726583 (1998-03-01), Kaplinsky
patent: 5919252 (1999-07-01), Klein
patent: 5955894 (1999-09-01), Vishwanthaiah et al.
patent: 6133749 (2000-10-01), Hansen et al.
patent: 6307791 (2001-10-01), Otsuka et al.

Affiliated with

Also associated with

Rating

ASIC architecture for active-compensation of a programmable... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with ASIC architecture for active-compensation of a programmable..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and ASIC architecture for active-compensation of a programmable... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3432167