发明公开
EP2930590A1 IDLE-ELEMENT PREDICTION CIRCUITRY AND ANTI-THRASHING LOGIC
有权
SCHALTKREIS ZUR VORHERSAGE LEERLAUFENDER ELEMENTE UND ANTI-ÜBERLASTUNGSLOGIK
- 专利标题： IDLE-ELEMENT PREDICTION CIRCUITRY AND ANTI-THRASHING LOGIC
- 专利标题（中）： SCHALTKREIS ZUR VORHERSAGE LEERLAUFENDER ELEMENTE UND ANTI-ÜBERLASTUNGSLOGIK
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申请号： EP15162985.4申请日： 2006-05-08
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公开(公告)号： EP2930590A1公开(公告)日： 2015-10-14
- 发明人: Dockser, Kenneth Alan
- 申请人： Qualcomm Incorporated
- 申请人地址： 5775 Morehouse Drive San Diego, CA 92121-1714 US
- 专利权人： Qualcomm Incorporated
- 当前专利权人： Qualcomm Incorporated
- 当前专利权人地址： 5775 Morehouse Drive San Diego, CA 92121-1714 US
- 代理机构： Wegner, Hans
- 优先权： US126442 20050510
- 主分类号： G06F1/32
- IPC分类号： G06F1/32 ; G06F9/38
摘要：
Control logic (45) monitors use of a particular functional unit (21) (e.g., a divider, or multiplier or the like) in a programmable processor (10), and the control logic (45) powers the functional unit down when it has not been used for a specified time period. A counter (31) (local or central) and time threshold determine when the period has elapsed without use of the functional unit. The control logic (45) also monitors how soon the functional unit (21) is woken up again, to determine if power control is causing thrashing. Upon the determination of such thrashing, the unit automatically adjusts its threshold period, to minimize thrashing. In an example of the control logic, when it determines that it is being too conservative, it lowers the threshold. Mode bits may allow the programmer to override the power-down logic to either keep the logic always powered-up, or always powered-down.
公开/授权文献
- EP2930590B1 IDLE-ELEMENT PREDICTION CIRCUITRY AND ANTI-THRASHING LOGIC 公开/授权日：2017-12-06
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