Invention Grant
US08219761B2 Multi-port high-level cache unit and a method for retrieving information from a multi-port high-level cache unit
有权
多端口高级缓存单元以及从多端口高级缓存单元检索信息的方法
- Patent Title: Multi-port high-level cache unit and a method for retrieving information from a multi-port high-level cache unit
- Patent Title (中): 多端口高级缓存单元以及从多端口高级缓存单元检索信息的方法
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Application No.: US12094123Application Date: 2005-11-17
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Publication No.: US08219761B2Publication Date: 2012-07-10
- Inventor: Ron Bercovich , Odi Dahan , Norman Goldstein , Yehuda Nowogrodski
- Applicant: Ron Bercovich , Odi Dahan , Norman Goldstein , Yehuda Nowogrodski
- Applicant Address: US TX Austin
- Assignee: Freescale Semiconductor, Inc.
- Current Assignee: Freescale Semiconductor, Inc.
- Current Assignee Address: US TX Austin
- International Application: PCT/IB2005/053804 WO 20051117
- International Announcement: WO2007/057726 WO 20070524
- Main IPC: G06F12/00
- IPC: G06F12/00

Abstract:
A device that includes multiple processors that are connected to multiple level-one cache units. The device also includes a multi-port high-level cache unit that includes a first modular interconnect, a second modular interconnect, multiple high-level cache paths; whereas the multiple high-level cache paths comprise multiple concurrently accessible interleaved high-level cache units. Conveniently, the device also includes at least one non-cacheable path. A method for retrieving information from a cache that includes: concurrently receiving, by a first modular interconnect of a multiple-port high-level cache unit, requests to retrieve information. The method is characterized by providing information from at least two paths out of multiple high-level cache paths if at least two high-level cache hit occurs, and providing information via a second modular interconnect if a high-level cache miss occurs.
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