发明授权
- 专利标题: Efficient low power exit sequence for peripheral devices
- 专利标题(中): 外围设备的低功耗退出顺序
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申请号: US13627779申请日: 2012-09-26
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公开(公告)号: US09116694B2公开(公告)日: 2015-08-25
- 发明人: Eng Hun Ooi
- 申请人: Intel Corporation
- 申请人地址: US CA Santa Clara
- 专利权人: Intel Corporation
- 当前专利权人: Intel Corporation
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Blakely, Sokoloff, Taylor & Zafman LLP
- 主分类号: G06F1/32
- IPC分类号: G06F1/32
摘要:
Embodiments of the invention describe methods, apparatuses and systems for providing an efficient low power exit sequence for peripheral devices. In embodiments of the invention, a signal from a host device is transmitted to a SATA peripheral device for exiting a low-power state. An initialization time for OOB transmission and reception logic of the SATA peripheral device is tracked, and a reference time value based on the tracked initialization time is stored. In subsequent transitions from said low-power state, the reference time value for waking a host physical layer is utilized, thereby improving the efficiency of the management and use of said low power state. In some embodiments, the above described tracked initialization comprises a time from a transmission of an OOB signal (from the host to the peripheral device) to receiving an OOB response at the host device from the SATA peripheral device.
公开/授权文献
- US20140089693A1 EFFICIENT LOW POWER EXIT SEQUENCE FOR PERIPHERAL DEVICES 公开/授权日:2014-03-27
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