Invention Grant
- Patent Title: Signaling an interrupt request through daisy chained devices
- Patent Title (中): 通过菊花链式设备来发送中断请求
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Application No.: US11928110Application Date: 2007-10-30
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Publication No.: US07752353B2Publication Date: 2010-07-06
- Inventor: Nir Perry , Asher Druck
- Applicant: Nir Perry , Asher Druck
- Applicant Address: IL Kfar Saba
- Assignee: SanDisk IL Ltd.
- Current Assignee: SanDisk IL Ltd.
- Current Assignee Address: IL Kfar Saba
- Agency: Beyer Law Group LLP
- Main IPC: G06F3/00
- IPC: G06F3/00

Abstract:
A system and a method for asynchronously signaling interrupts from a plurality of devices in a computing system, while optimizing the latencies in handling the interrupts. In a particular embodiment, an interrupt is signaled via a plurality of daisy chained devices by handing over the interrupt request from one device to another while retaining information regarding any interrupts handed over (also referred to as passed). In this way, the interrupt source can be readily identified (using a binary search, for example) thereby reducing interrupt latency and memory resources required to retain interrupt history.
Public/Granted literature
- US20090106469A1 SIGNALING AN INTERRUPT REQUEST THROUGH DAISY CHAINED DEVICES Public/Granted day:2009-04-23
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