Apparatus, system and method for identifying semiconductor memory access modes
US5812470A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1996 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Sep 10, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C29/46
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus, system and method for identifying an access mode of a semiconductor memory in a data processing system, characterized by significant reduction of the possibility of erroneous identification of the access mode. A semiconductor memory has an access circuit bank with plurality of selectable circuits only one of which is activated, each selectable circuit respectively associated with a selectable semiconductor memory access mode, the access mode selection typically being accomplished by selectively blowing fuses associated with the corresponding selectable circuits. A semiconductor memory access mode is correctly identified by associating, in response to a test signal for determining the fuse status, the respective activated selectable circuit with its corresponding access mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.