Integrated circuit input/output interface with empirically...

Details Integrated circuit input/output interface with empirically... Integrated circuit input/output interface with empirically...

2008-07-08

2008-07-08

Peyton, Tammara (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral monitoring

C710S038000, C375S295000, C375S356000, C713S400000, C713S401000

Reexamination Certificate

active

07398333

ABSTRACT:
An integrated circuit input/output interface with empirically determined delay matching is disclosed. In one embodiment, the integrated circuit input/output interface uses empirical information of the signal traces to adjust the transmit/receive clock of each pin of the interface so as to compensate for delay mismatches caused by differences in signal trace lengths. The empirical information, in one embodiment, includes signal flight time of each signal trace, which can be pre-measured or pre-calculated from known signal trace lengths. The empirical information, in another embodiment, includes trace-specific phase offset values calculated from pre-calculated or pre-measured signal flight times or signal trace lengths. In yet another embodiment, a transmitting device generates a set of serially delayed write clocks, which are used to control symbol transmission over signal traces so as to reduce simultaneous switching output noise and ground bound in the transmitting device.

REFERENCES:
patent: 5554945 (1996-09-01), Lee et al.
patent: 5852640 (1998-12-01), Kliza et al.
patent: 6292903 (2001-09-01), Coteus et al.
patent: 6658732 (2003-12-01), Doberenz
patent: 6816505 (2004-11-01), Sutardja et al.
patent: 6847267 (2005-01-01), Flake et al.
patent: 6998870 (2006-02-01), Gulick et al.
patent: 2005/0213684 (2005-09-01), Flake et al.
Ryu, W.H., et al., “High-Frequency Simultaneous Switching Output Noise (SSO) Simulation Methodology for a DDR333/400 Data Interface,” Ansoft High-Speed Design Forum, Jun. 27, 2002.

Affiliated with

Also associated with

Rating

Integrated circuit input/output interface with empirically... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Integrated circuit input/output interface with empirically..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated circuit input/output interface with empirically... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2805782