Memory control with lookahead power management
US6820169B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2001 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Jan 26, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4031
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
One or more memory requests are stored in a request buffer. Each memory request targets a memory device in a memory system having one or more memory devices. Each memory device has a first power state and a second power state. Each memory request is issued in an order from the request buffer to the memory system. The memory device targeted by one memory request from the request buffer is identified prior to or while another memory request ahead of the one memory request is issued to the memory system and performed by the memory system. The identified memory device is placed or maintained in the second power state prior to issuing the one memory request to the memory system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.