Using chip select to specify boot memory
US7844811B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2007 |
| Grant date | Nov 30, 2010 |
| Priority date | — |
| Expiry date | Mar 12, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/445
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A synchronous Flash memory device is described that enhances initialization and boot memory device identification in synchronous memory systems. A boot memory is typically a separate device that is tied to a specific chip select line and/or address range of a system, whereas synchronous Flash memory generally can be placed in any available memory slot and assigned one of several possible chip selects and address ranges. This lack of predictability makes installing a boot memory based on a non-volatile synchronous memory device difficult. A synchronous Flash boot memory device of the detailed invention is adapted to identify itself and its chip select/address range to the memory controller at power up, reset, or upon receiving an identification request. This allows the utilization of the detailed synchronous Flash memory as a boot memory in synchronous systems where a reserved boot memory slot and/or chip select are not provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.