Method and apparatus for a flexible controller for a DRAM generator system
US6181639A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 23, 2000 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Mar 23, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C5/147
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a controller for controlling a generator system on a memory chip, the controller operates as a state machine in accordance with a state diagram including a plurality of X states. An evaluation arrangement evaluates a combination of only a predetermined one of a plurality of N input signals from remote devices, and only a predetermined one of a plurality of X state signals indicating a current state in the state diagram at any instant of time. The controller generates a plurality of Y output signals having a predetermined logical value that indicates that a change from one state to a next state in the state diagram is to be made when the predetermined one of both the plurality of N input signals and the plurality of X state signals comprise a predetermined logical value. A state storage device is responsive to the predetermined one of a plurality of Y output signals having a predetermined logical value, and generates a revised plurality of X state output signals for transmission back to the evaluation arrangement indicating a change in the state diagram from a current state to a next state of the plurality of X states. An output arrangement is responsive to the revised plurality …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.