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  • 參數(shù)資料
    型號: S29GL032A100BAIR23
    廠商: Spansion Inc.
    英文描述: 64 Megabit, 32 Megabit, and 16 Megabit 3.0-Volt only Page Mode Flash Memory Featuring 200 nm MirrorBit Process Technology
    中文描述: 64兆,32兆和16兆位3.0伏只頁面模式閃存,含有200納米MirrorBit工藝技術(shù)
    文件頁數(shù): 60/95頁
    文件大?。?/td> 2389K
    代理商: S29GL032A100BAIR23
    60
    S29GL-A
    S29GL-A_00_A11 September 10, 2007
    D a t a
    S h e e t
    10.1
    Erase Suspend/Erase Resume Commands
    The Erase Suspend command, B0h, allows the system to interrupt a sector erase operation and then read
    data from, or program data to, any sector not selected for erasure. This command is valid only during the
    sector erase operation, including the 50 μs time-out period during the sector erase command sequence. The
    Erase Suspend command is ignored if written during the chip erase operation or Embedded Program
    algorithm.
    When the Erase Suspend command is written during the sector erase operation, the device requires a typical
    of 5
    μ
    s
    (
    maximum of 20
    μ
    s) to suspend the erase operation. However, when the Erase Suspend command is
    written during the sector erase time-out, the device immediately terminates the time-out period and suspends
    the erase operation.
    After the erase operation is suspended, the device enters the erase-suspend-read mode. The system can
    read data from or program data to any sector not selected for erasure. (The device
    erase suspends
    all
    sectors selected for erasure.) Reading at any address within erase-suspended sectors produces status
    information on DQ7–DQ0. The system can use DQ7, or DQ6 and DQ2 together, to determine if a sector is
    actively erasing or is erase-suspended. Refer to
    Write Operation Status
    on page 63
    for information on these
    status bits.
    After an erase-suspended program operation is complete, the device returns to the erase-suspend-read
    mode. The system can determine the status of the program operation using the DQ7 or DQ6 status bits, just
    as in the standard word program operation. Refer to
    Write Operation Status
    on page 63
    for more information.
    In the erase-suspend-read mode, the system can also issue the autoselect command sequence. Refer to
    Autoselect Mode
    on page 40
    and
    Autoselect Command Sequence
    on page 53
    sections for details.
    To resume the sector erase operation, the system must write the Erase Resume command. Further writes of
    the Resume command are ignored. Another Erase Suspend command can be written after the chip resumes
    erasing.
    Note
    During an erase operation, this flash device performs multiple internal operations which are invisible to the
    system. When an erase operation is suspended, any of the internal operations that were not fully completed
    must be restarted. As such, if this flash device is continually issued suspend/resume commands in rapid
    succession, erase progress is impeded as a function of the number of suspends. The result is a longer
    cumulative erase time than without suspends. Note that the additional suspends do not affect device reliability
    or future performance. In most systems rapid erase/suspend activity occurs only briefly. In such cases, erase
    performance is not significantly impacted.
    相關(guān)PDF資料
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    相關(guān)代理商/技術(shù)參數(shù)
    參數(shù)描述
    S29GL032A100BFI010 制造商:SPANSION 制造商全稱:SPANSION 功能描述:64 Megabit, 32 Megabit, and 16 Megabit 3.0-Volt only Page Mode Flash Memory Featuring 200 nm MirrorBit Process Technology
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    S29GL032A100BFIR10 制造商:SPANSION 制造商全稱:SPANSION 功能描述:64 Megabit, 32 Megabit, and 16 Megabit 3.0-Volt only Page Mode Flash Memory Featuring 200 nm MirrorBit Process Technology
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