Electronic digital logic circuitry – Multifunctional or programmable – Array
Reexamination Certificate
2005-05-03
2005-05-03
Tan, Vibol (Department: 2819)
Electronic digital logic circuitry
Multifunctional or programmable
Array
C326S047000, C326S037000, C370S445000
Reexamination Certificate
active
06888376
ABSTRACT:
A serial interface for a programmable logic device supports a higher physical medium attachment (“PMA”) data rate than the available physical coding sublayer (“PCS”) data rate by using multiple PCS modules, operating in parallel, to support one PMA module. In a channel-based structure, the PMA module is supported by a PCS module in its own channel and at least one PCS module from a second channel. The second channel may include its own PMA module which, if provided, may operate at a lower rate, supportable by the PCS module in that channel. Optionally, two modes are provided. In one mode, two PCS modules in two channels support one higher-speed PMA module in one of the channels. In a second mode, each PCS module supports a PMA module in its own channel, with the higher-speed PMA module constrained to operate at the lower data rate of the PCS module.
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Lee Chong H.
Patel Rakesh
Venkata Ramanand
Altera Corporation
Fish & Neave IP Group of Ropes & Gray LLP
Ingerman Jeffrey H.
Tan Vibol
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