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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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PC48F4400PLVB0 数据表(PDF) 68 Page - Numonyx B.V |
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PC48F4400PLVB0 数据表(HTML) 68 Page - Numonyx B.V |
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68 / 102 page  Numonyx™ Wireless Flash Memory (W18) Datasheet November 2007 68 Order Number: 290701-18 Numonyx™ Wireless Flash Memory (W18) The 2-cycle erase sequence cannot be interrupted with a bus write operation. For example, an Erase Setup command must be immediately followed by the Erase Confirm command in order to execute properly. If a different command is issued between the setup and confirm commands, the partition is placed in read-status mode, the Status Register signals a command sequence error, and all subsequent erase commands to that partition are ignored until the Status Register is cleared. The CPU can detect block erase completion by analyzing SR[7] of that partition. If an error bit (SR[5,3,1]) was flagged, the Status Register can be cleared by issuing the Clear Status Register command before attempting the next operation. The partition remains in read-status mode until another command is written to its CUI. Any CUI instruction can follow after erasing completes. The CUI can be set to read-array mode to prevent inadvertent Status Register reads. |
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