Technique to support progressively programmable nonvolatile memory
US5390317A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1994 |
| Grant date | Feb 14, 1995 |
| Priority date | — |
| Expiry date | Mar 18, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/08
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A nonvolatile memory (28) in a data processor (10) is capable of being progressively programmed and/or accessed in a user determined number of sections. A user can program and/or access what appears to the user to be reprogrammable nonvolatile memory (28) at a same address when in actuality the user is programming and accessing sequential sections of nonvolatile memory (28). Nonvolatile information stored in nonvolatile control bits (20) is used to control which section of the nonvolatile memory is connected to a communication bus and is thus accessible to the user. When the user desires to write and/or access a new section of nonvolatile memory (28), either the user directly asserts one of the nonvolatile control bits (20) using software, or the nonvolatile control (24) asserts one of the nonvolatile control bits (20) using hardware.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.