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  • 參數(shù)資料
    型號: S71PL129JC0BFW9U2
    廠商: SPANSION LLC
    元件分類: 存儲器
    英文描述: Stacked Multi-Chip Product (MCP) Flash Memory
    中文描述: SPECIALTY MEMORY CIRCUIT, PBGA64
    封裝: 8 X 11.60 MM, 1.20 MM HEIGHT, LEAD FREE, FBGA-64
    文件頁數(shù): 40/149頁
    文件大?。?/td> 2693K
    代理商: S71PL129JC0BFW9U2
    40
    S29PL129J for MCP
    S29PL129J_MCP_00_A0 June 4, 2004
    A d v a n c e I n f o r m a t i o n
    Factory-Locked Area ( 64 w ords)
    The factory-locked area of the Secured Silicon Sector (000000h-00003Fh) is
    locked when the part is shipped, whether or not the area was programmed at the
    factory. The Secured Silicon Sector Factory-locked Indicator Bit (DQ7) is perma-
    nently set to a “1”. Optional Spansion programming services can program the
    factory-locked area with a random ESN, a customer-defined code, or any combi-
    nation of the two. Because only FASL can program and protect the factory-locked
    area, this method ensures the security of the ESN once the product is shipped to
    the field. Contact your local sales office for details on using Spansion’s program-
    ming services. Note that the ACC function and unlock bypass modes are not
    available when the Secured Silicon sector is enabled.
    Customer-Lockable Area ( 64 w ords)
    The customer-lockable area of the Secured Silicon Sector (000040h-00007Fh) is
    shipped unprotected, which allows the customer to program and optionally lock
    the area as appropriate for the application. The Secured Silicon Sector Customer-
    locked Indicator Bit (DQ6) is shipped as “0” and can be permanently locked to “1”
    by issuing the Secured Silicon Protection Bit Program Command. The Secured Sil-
    icon Sector can be read any number of times, but can be programmed and locked
    only once. Note that the accelerated programming (ACC) and unlock bypass func-
    tions are not available when programming the Secured Silicon Sector.
    The Customer-lockable Secured Silicon Sector area can be protected using one
    of the following procedures:
    Write the three-cycle Enter Secured Silicon Sector Region command se-
    quence, and then follow the in-system sector protect algorithm as shown in
    Figure 1
    , except that
    RESET# may be at either V
    IH
    or V
    ID
    . This allows in-sys-
    tem protection of the Secured Silicon Sector Region without raising any de-
    vice pin to a high voltage. Note that this method is only applicable to the
    Secured Silicon Sector.
    To verify the protect/unprotect status of the Secured Silicon Sector, follow the
    algorithm shown in
    Figure 3
    .
    Once the Secured Silicon Sector is locked and verified, the system must write the
    Exit Secured Silicon Sector Region command sequence to return to reading and
    writing the remainder of the array.
    The Secured Silicon Sector lock must be used with caution since, once locked,
    there is no procedure available for unlocking the Secured Silicon Sector area and
    none of the bits in the Secured Silicon Sector memory space can be modified in
    any way.
    Secured Silicon Sector Protection Bits
    The Secured Silicon Sector Protection Bits prevent programming of the Secured
    Silicon Sector memory area. Once set, the Secured Silicon Sector memory area
    contents are non-modifiable.
    相關PDF資料
    PDF描述
    S71PL129JB0BFW9U2 Stacked Multi-Chip Product (MCP) Flash Memory
    S71PL129JA0BFW9U2 Stacked Multi-Chip Product (MCP) Flash Memory
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    S71PL129JB0BFW9U3 Stacked Multi-Chip Product (MCP) Flash Memory
    S71PL129JA0BFW9U3 Stacked Multi-Chip Product (MCP) Flash Memory
    相關代理商/技術參數(shù)
    參數(shù)描述
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