Write transaction interpretation for interrupt assertion

US9104472B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9104472-B2
Application numberUS-201313758268-A
CountryUS
Kind codeB2
Filing dateFeb 4, 2013
Priority dateFeb 4, 2013
Publication dateAug 11, 2015
Grant dateAug 11, 2015

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Abstract

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A method and circuit for a data processing system ( 12 ) provide a virtualized programmable interrupt control system ( 70 ) which processes interrupt event reports from interrupt sources (e.g., 14, 40 ) which generate write transactions to an address for an interrupt event register ( 80 ) which is authenticated and then interpreted based on the current state of the targeted interrupt to generate the next state using an interpretation table ( 306 ) and predetermined configuration/state bits ( 310 - 314 ).

First claim

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What is claimed is: 1. A method of managing interrupt requests, comprising: receiving at an interrupt controller a write transaction representing an interrupt event for a targeted system resource, where the write transaction is generated by a first interrupt source and comprises a write address and a data payload; generating an interrupt request state signal for the first interrupt source in response to accepting the write transaction using interrupt control logic at the interru…

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What does patent US9104472B2 cover?
A method and circuit for a data processing system ( 12 ) provide a virtualized programmable interrupt control system ( 70 ) which processes interrupt event reports from interrupt sources (e.g., 14, 40 ) which generate write transactions to an address for an interrupt event register ( 80 ) which is authenticated and then interpreted based on the current state of the targeted interrupt to genera…
Who is the assignee on this patent?
Marietta Bryan D, Freescale Semiconductor Inc
What technology area does this patent fall under?
Primary CPC classification G06F9/4812. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Aug 11 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).