Invention Grant
- Patent Title: Bus transaction maintenance protocol
- Patent Title (中): 总线事务维护协议
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Application No.: US13568639Application Date: 2012-08-07
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Publication No.: US08688886B1Publication Date: 2014-04-01
- Inventor: Tarek Rohana , Yuval Avnon
- Applicant: Tarek Rohana , Yuval Avnon
- Applicant Address: IL Yokneam
- Assignee: Marvell Israel (M.I.S.L.) Ltd.
- Current Assignee: Marvell Israel (M.I.S.L.) Ltd.
- Current Assignee Address: IL Yokneam
- Main IPC: G06F13/36
- IPC: G06F13/36 ; G06F13/20 ; G06F13/00

Abstract:
A system-on-a-chip (SOC) bridge is described that applies an adapted delay, or latency, to data transfers across the bridge to avoid data corruption without reducing data transfer performance. The adapted delay assures that a source SOC service device transferring data to a destination SOC service device via the bridge and an SOC crossbar bus does not prematurely assume that the data transfer is complete upon transferring the data to the bridge. The bridge causes wait states to be inserted into the transfer between the source SOC service device and the SOC bridge until the SOC bridge receives confirmation that the data has arrived at the destination SOC service device. The adapted delay assures that subsequent operations are not prematurely initiated by the source SOC service device and/or the SOC CPU that may interfere with the data transfer from the SOC bridge to the destination SOC service device, causing corrupted data.
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