Write request buffer capable of responding to read requests
US12254213B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2021 |
| Grant date | Mar 18, 2025 |
| Priority date | — |
| Expiry date | Nov 22, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/1605
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Described apparatuses and methods relate to a write request buffer for a memory system that may support a nondeterministic protocol. A host device and connected memory device may include a controller with a read queue and a write queue. A controller includes a write request buffer to buffer write addresses and write data associated with write requests directed to the memory device. The write request buffer can include a write address buffer that stores unique write addresses and a write data buffer that stores most-recent write data associated with the unique write addresses. Incoming read requests are compared with the write requests stored in the write request buffer. If a match is found, the write request buffer can service the requested data without forwarding the read request downstream to backend memory. Accordingly, the write request buffer can improve the latency and bandwidth in accessing a memory device over an interconnect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.