System and method for sharing a communications link between...

Details System and method for sharing a communications link between... System and method for sharing a communications link between...

2011-07-19

2011-07-19

Ton, David (Department: 2117)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital logic testing

C714S030000

Reexamination Certificate

active

07984347

ABSTRACT:
A system and method for sharing a communications link between multiple protocols is described that comprises a system comprising a communications interface configured to exchange information with other systems using at least one of a plurality of protocols; a protocol select register that stores a value that selects a protocol from among the plurality of protocols to become an active protocol; and a state machine accessible to the communications interface, the state machine used to control the exchange of information through the communications interface according to the active protocol. The active protocol is used by the communications interface to exchange information while the remaining protocols of the plurality of protocols remain inactive. The state machine sequences through a series of states that cause the communications interface to operate according to the active protocol, and that are designated as inert sequences under the remaining protocols.

REFERENCES:
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patent: 7395471 (2008-07-01), Whetsel
patent: 7698612 (2010-04-01), Whetsel
patent: 2002/0133795 (2002-09-01), Yamada
patent: 2002/0188782 (2002-12-01), Fay

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