发明授权
- 专利标题: Systems and methods for writing to a memory
- 专利标题(中): 用于写入内存的系统和方法
-
申请号: US12110859申请日: 2008-04-28
-
公开(公告)号: US07969806B2公开(公告)日: 2011-06-28
- 发明人: Luca De Ambroggi , Jens Egerer , Peter Schroegmeier
- 申请人: Luca De Ambroggi , Jens Egerer , Peter Schroegmeier
- 申请人地址: DE Munich
- 专利权人: Qimonda AG
- 当前专利权人: Qimonda AG
- 当前专利权人地址: DE Munich
- 代理机构: Edell, Shapiro & Finnan, LLC
- 主分类号: G11C7/00
- IPC分类号: G11C7/00
摘要:
An integrated circuit includes memory segments, each having at least one memory cell configurable in first and second states to store data, and a controller that controls programming and erasing of the memory segments. The controller maps external memory addresses of write data to internal memory addresses of erased memory segments with no memory cells in the first state such that erased memory segments are programmed with write data. When a write access occurs for an external memory address previously mapped to an internal memory address of a programmed memory segment with at least one memory cell in the first state, the controller remaps the external memory address to another internal memory address of an erased memory segment. The controller identifies programmed memory segments to be erased and controls selective erasure of the identified programmed memory segments, such as programmed memory segments no longer mapped to an external memory address.
公开/授权文献
- US20090268532A1 Systems and Methods for Writing to a Memory 公开/授权日:2009-10-29