Memory system and method of controlling nonvolatile memory with a write buffer
US11321231B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2020 |
| Grant date | May 3, 2022 |
| Priority date | — |
| Expiry date | Oct 11, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7203
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, a controller of a memory system writes write data associated with a set of received write requests to a first write destination storage region in a first write mode of writing a plurality of bits per memory cell, without writing the write data to a second storage region. When receiving from a host a first request to cause a state of the first write destination storage region to transition to a second state in which writing is suspended, the controller transfers un-transferred remaining write data from a write buffer of the host to an internal buffer, and writes the remaining write data to the second storage region in a second write mode of writing 1 bit per memory cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.