Programmable and fixed logic circuitry for high-speed...

Details Programmable and fixed logic circuitry for high-speed... Programmable and fixed logic circuitry for high-speed...

2005-05-17

2005-05-17

Chang, Daniel (Department: 2819)

Electronic digital logic circuitry

Multifunctional or programmable

Having details of setting or programming of interconnections...

C326S041000

Reexamination Certificate

active

06894530

ABSTRACT:
Systems and methods are disclosed for programmable logic devices requiring a high-speed input/output interface. Hard-macro circuits that are configurable, scalable, and cascadable complement the input/output drivers and the programmable core logic of the programmable logic device. The hard-macro circuits are permanent, high-speed logic circuits that are optimized for the performance requirements of high-speed input/output interface standards. High-speed memory interfaces, clock and data recovery interface standards, source-synchronous interface standards, and system-synchronous interface standards may be supported by the hard-macro circuits.

REFERENCES:
patent: 6426649 (2002-07-01), Fu et al.
patent: 6483343 (2002-11-01), Faith et al.
patent: 6608500 (2003-08-01), Lacey et al.
patent: 6674303 (2004-01-01), Morse et al.

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