參數(shù)資料
    型號: AM29LV320MB120PCI
    廠商: ADVANCED MICRO DEVICES INC
    元件分類: PROM
    英文描述: 32 Megabit (2 M x 16-Bit/4 M x 8-Bit) MirrorBit 3.0 Volt-only Boot Sector Flash Memory
    中文描述: 2M X 16 FLASH 3V PROM, 120 ns, PBGA64
    封裝: 13 X 11 MM, 1 MM PITCH, FORTIFIED, BGA-64
    文件頁數(shù): 19/61頁
    文件大小: 1395K
    代理商: AM29LV320MB120PCI
    May 16, 2003
    Am29LV320MT/B
    19
    D A T A S H E E T
    Figure 2.
    In-System Sector Group Protect/Unprotect Algorithms
    Sector Group Protect:
    Write 60h to sector
    group address with
    A6–A0 = 0xx0010
    Set up sector
    group address
    Wait 150 μs
    Verify Sector Group
    Protect: Write 40h
    to sector group
    address with
    A6–A0 = 0xx0010
    Read from
    sector group address
    with A6–A0
    = 0xx0010
    START
    PLSCNT = 1
    RESET# = V
    ID
    Wait 1
    μ
    s
    First Write
    Cycle = 60h
    Data = 01h
    Remove V
    from RESET#
    Write reset
    command
    Sector Group
    Protect complete
    Yes
    Yes
    No
    PLSCNT
    = 25
    Yes
    Device failed
    Increment
    PLSCNT
    Temporary Sector
    Group Unprotect
    Mode
    No
    Sector Group
    Unprotect:
    Write 60h to sector
    group address with
    A6–A0 = 1xx0010
    Set up first sector
    group address
    Wait 15 ms
    Verify Sector Group
    Unprotect: Write
    40h to sector group
    address with
    A6–A0 = 1xx0010
    Read from
    sector group
    address with
    A6–A0 = 1xx0010
    START
    PLSCNT = 1
    RESET# = V
    ID
    Wait 1
    μ
    s
    Data = 00h
    Last sector
    group
    verified
    Remove V
    from RESET#
    Write reset
    command
    Sector Group
    Unprotect complete
    Yes
    No
    PLSCNT
    = 1000
    Yes
    Device failed
    Increment
    PLSCNT
    Temporary Sector
    Group Unprotect
    Mode
    No
    All sector
    groups
    protected
    Yes
    Protect all sector
    groups:
    The indicated
    portion of the sector
    group protect algorithm
    must be performed for all
    unprotected sector
    groups prior to issuing
    the first sector group
    unprotect address
    Set up
    next sector group
    address
    No
    Yes
    No
    Yes
    No
    No
    Yes
    No
    Sector Group
    Protect
    Algorithm
    Sector Group
    Unprotect
    Algorithm
    First Write
    Cycle = 60h
    Protect
    another
    sector group
    Reset
    PLSCNT = 1
    相關PDF資料
    PDF描述
    AM29LV320MB120REI 32 Megabit (2 M x 16-Bit/4 M x 8-Bit) MirrorBit 3.0 Volt-only Boot Sector Flash Memory
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