Arbiter for asynchronous state machines

US8990466B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8990466-B2
Application numberUS-201213482753-A
CountryUS
Kind codeB2
Filing dateMay 29, 2012
Priority dateMay 29, 2012
Publication dateMar 24, 2015
Grant dateMar 24, 2015

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Abstract

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An arbiter can be used for processing a plurality of asynchronous data signals. Each data signal is associated with a request signal and a respective acknowledge signal. The arbiter includes a latch array with an input coupled to receive the data signals and request signals and an output coupled to provide a data vector and a validity vector. The data vector includes values depending on the data signals and the validity vector includes values depending on the request signals when the latch array is in a transparent state. Logic circuitry is configured to trigger the latch array when any of the request signals becomes active, to activate a global request signal a delay time after the latch has been triggered, and to selectively activate the acknowledge signals for a channel or channels for which an active request signal has been latched.

First claim

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What is claimed is: 1. An arbiter for processing a plurality of asynchronous data signals, wherein each data signal is associated with a respective request signal and a respective acknowledge signal, the arbiter comprising: a latch array comprising a plurality of individual latches, an input coupled to receive the data signals and request signals as input signals, and an output coupled to provide a data vector and a validity vector as output signals, the data vector including valu…

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What does patent US8990466B2 cover?
An arbiter can be used for processing a plurality of asynchronous data signals. Each data signal is associated with a request signal and a respective acknowledge signal. The arbiter includes a latch array with an input coupled to receive the data signals and request signals and an output coupled to provide a data vector and a validity vector. The data vector includes values depending on the dat…
Who is the assignee on this patent?
Bacigalupo Tommaso, Infineon Technologies Austria
What technology area does this patent fall under?
Primary CPC classification G06F13/366. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Mar 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).