Method of and means for accessing an address by respectively substracting base addresses of memory integrated circuits from an access address
US5895480A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1995 |
| Grant date | Apr 20, 1999 |
| Priority date | — |
| Expiry date | Oct 10, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C8/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method for accessing a memory device and a memory accessing device. The method includes a) providing the memory device having a plurality of memory sub-spaces respectively having a plurality of address ranges; b) respectively assigning a plurality of base addresses to the plurality of memory sub-spaces; c) inputting an access address; d) respectively operating the base addresses with the access address to obtain a plurality of operated results; and e) accessing one of the memory sub-spaces if a specific one of the operated results falls within one of the address ranges corresponding to the one memory sub-space. The memory accessing device includes an access address end, a data access end, an access selection end, a memory device having a plurality of memory sub-spaces, and a plurality of access devices respectively electrically connected to the memory sub-spaces, and each of which includes a base address storing device for storing therein a base address, an operating and comparing device for operating the access address with the base address to obtain an operated result and generating a data access enabling signal when the operated result falls with…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.