Data supplying apparatus for independently performing hit determination and data access
US6076145A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1998 |
| Grant date | Jun 13, 2000 |
| Priority date | — |
| Expiry date | Dec 15, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0875
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An address buffer that stores information used to access a data memory is disposed in a cache unit that supplies data such as an instruction code to an instruction executing unit. A tag memory and a data memory are independently accessed. The data memory is accessed corresponding to access information stored in the address buffer. Data is output from the data memory in the input order of data requests. When a data release signal is not received from the instruction executing unit, since access information is buffered in the address buffer, a large data buffer for storing the output data of the data memory is not required. In addition, in an associative type cache unit, the tag memory and the address buffer can be formed in the same memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.