Optimized input/output memory access request system and method
US5842038A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1996 |
| Grant date | Nov 24, 1998 |
| Priority date | — |
| Expiry date | Oct 10, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/1642
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for transmitting commands from one or more input/output devices to a memory is provided. An identification tag is appended to each command to define the command as either a read or write command. The read commands are separated from the write commands based on the state of the identification tag, and the read and write commands are separately queued. The read commands are stored in a first command queue, and the write commands are stored in a second, separate, command queue. The read commands in the first command queue are successively transferred to the memory upon completion of the current memory read function, and the write commands in the second command queue are successively transferred to the memory upon completion of the current memory write function. The transfer of the read and write commands is independent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.