Memory cache management for isochronous memory access
US6260119A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1998 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Dec 29, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/1605
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Isochronous information is transferred between an IO device and a first buffer (N) of a plurality of buffers in a system memory. The isochronous information stored in the plurality of buffers is also stored in a memory cache accessible to a system processor. The state of the memory cache is managed according to an isochronous "X-T" contract that is independent of the "X-T" contact with which data are moved between the IO device and system memory. Further, data associated with a given buffer are moved into and out of the memory cache substantially simultaneously with the transfer of isochronous information between the IO device and other buffers in the system memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.