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    參數(shù)資料
    型號(hào): AM41DL3208GB85IT
    廠商: SPANSION LLC
    元件分類: 存儲(chǔ)器
    英文描述: Circular Connector; No. of Contacts:16; Series:MS27505; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:21; Circular Contact Gender:Pin; Circular Shell Style:Box Mount Receptacle; Insert Arrangement:21-16 RoHS Compliant: No
    中文描述: SPECIALTY MEMORY CIRCUIT, PBGA73
    封裝: 8 X 11.60 MM, FBGA-73
    文件頁(yè)數(shù): 32/65頁(yè)
    文件大?。?/td> 1288K
    代理商: AM41DL3208GB85IT
    February 13, 2002
    Am41DL3208G
    31
    P R E L I M I N A R Y
    termine the status of the erase operation by reading
    DQ7, DQ6, DQ2, or RY/BY# in the erasing bank.
    Refer to the Write Operation Status section for infor-
    mation on these status bits.
    Once the sector erase operation has begun, only the
    Erase Suspend command is valid. All other com-
    mands are ignored. However, note that a
    hardware
    reset
    immediately
    terminates the erase operation. If
    that occurs, the sector erase command sequence
    should be reinitiated once that bank has returned to
    reading array data, to ensure data integrity.
    Figure 4 illustrates the algorithm for the erase opera-
    tion. Refer to the Flash Erase and Program
    Operations tables in the AC Characteristics section for
    parameters, and Figure 20 section for timing
    diagrams.
    Erase Suspend/Erase Resume
    Commands
    The Erase Suspend command, B0h, allows the sys-
    tem to interrupt a sector erase operation and then read
    data from, or program data to, any sector not selected
    for erasure. The bank address is required when writing
    this command. 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 dur-
    ing the chip erase operation or Embedded Program
    algorithm.
    When the Erase Suspend command is written during
    the sector erase operation, the device requires a max-
    imum of 20 μs to suspend the erase operation.
    However, when the Erase Suspend command is writ-
    ten during the sector erase time-out, the device
    immediately terminates the time-out period and sus-
    pends the erase operation.
    After the erase operation has been suspended, the
    bank enters the erase-suspend-read mode. The sys-
    tem can read data from or program data to any sector
    not selected for erasure. (The device
    erase sus-
    pends
    all sectors selected for erasure.) Reading at
    any address within erase-suspended sectors pro-
    duces 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 the Write Operation Status section for infor-
    mation on these status bits.
    After an erase-suspended program operation is com-
    plete, the bank 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 Byte Program operation.
    Refer to the Write Operation Status section for more
    information.
    In the erase-suspend-read mode, the system can also
    issue the autoselect command sequence. Refer to the
    Autoselect Mode and Autoselect Command Sequence
    sections for details.
    To resume the sector erase operation, the system
    must write the Erase Resume command. The bank
    address of the erase-suspended bank is required
    when writing this command. Further writes of the Re-
    sume command are ignored. Another Erase Suspend
    command can be written after the chip has resumed
    erasing.
    Figure 4.
    Erase Operation
    START
    Write Erase
    Command Sequence
    (Notes 1, 2)
    Data Poll to Erasing
    Bank from System
    Data = FFh
    No
    Yes
    Erasure Completed
    Embedded
    Erase
    algorithm
    in progress
    Notes:
    1. See Tables 15 and 16 for erase command sequence.
    2. See the section on DQ3 for information on the sector
    erase timer.
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