发明授权
US07061804B2 Robust and high-speed memory access with adaptive interface timing
有权
强大的高速存储器访问,具有自适应接口时序
- 专利标题: Robust and high-speed memory access with adaptive interface timing
- 专利标题(中): 强大的高速存储器访问,具有自适应接口时序
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申请号: US10993034申请日: 2004-11-18
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公开(公告)号: US07061804B2公开(公告)日: 2006-06-13
- 发明人: Dexter Tamio Chun , Ajit Patil , Ian Huang , Jason Chan , Timothy Gold
- 申请人: Dexter Tamio Chun , Ajit Patil , Ian Huang , Jason Chan , Timothy Gold
- 申请人地址: US CA San Diego
- 专利权人: QUALCOMM Incorporated
- 当前专利权人: QUALCOMM Incorporated
- 当前专利权人地址: US CA San Diego
- 代理商 Philip Wadsworth; Charles D. Brown; Howard H Seo
- 主分类号: G11C11/34
- IPC分类号: G11C11/34
摘要:
Techniques for quickly and reliably accessing a memory device (e.g., a NAND Flash memory) with adaptive interface timing are described. For memory access with adaptive interface timing, the NAND Flash memory is accessed at an initial memory access rate, which may be the rate predicted to achieve reliable memory access. Error correction coding (ECC), which is often employed for NAND Flash memory, is then used to ensure reliable access of the NAND Flash. For a read operation, one page of data is read at a time from the NAND Flash memory, and the ECC determines whether the page read from the NAND Flash memory contains any errors. If errors are encountered, then a slower memory access rate is selected, and the page with error is read again from the NAND Flash memory at the new rate. The techniques may be used to write data to the NAND Flash memory.
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