Semiconductor device for managing cold addresses of nonvolatile memory device
US10877698B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 6, 2019 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Jun 6, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7211
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A semiconductor device may include a media controller configured to output a write requested address when a write request to a nonvolatile memory device is provided from a host; and a cold address manager. The cold address manager may include a stack storing meta data for the write requested address, region information storage configured to manage addresses of the nonvolatile memory device with regions such that length of a region of the regions may vary after a predetermined period, a cold address detector configured to update the stack and the region information storage after the predetermined period and to detect whether an address of the nonvolatile memory device is a cold address, the cold address having write requests performed at less than a predetermined level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.