Abort of DRAM read ahead when PCI read multiple has ended
US6314472A · kind A · utility
22Cited by
18References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1998 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Dec 1, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/161
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer system is provided. The computer system includes a host processor (HP), a system memory (SM), and an input/output (I/O) master device to perform a read of a continuous stream of data to the SM. The computer system also includes a bridge coupled to the HP, SM, and I/O master device. The bridge reads ahead to the SM when the I/O master device reads a continuous stream of data from the SM. The bridge aborts read ahead accesses to the SM, prior to an access commit point to the SM, responsive to disengagement of the I/O master device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.