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    參數(shù)資料
    型號(hào): PCI1520-EP
    英文描述: Military Enhanced Plastic PC Card Controllers Data Manual
    中文描述: 軍事增強(qiáng)塑料PC卡控制器數(shù)據(jù)手冊(cè)
    文件頁數(shù): 98/125頁
    文件大?。?/td> 716K
    代理商: PCI1520-EP
    5
    11
    5.7
    ExCA Address Window Enable Register
    The ExCA address window enable register enables/disables the memory and I/O windows to the 16-bit PC Card. By
    default, all windows to the card are disabled. The PCI1520 does not acknowledge PCI memory or I/O cycles to the
    card if the corresponding enable bit in this register is 0, regardless of the programming of the memory or I/O window
    start/end/offset address registers. See Table 5
    9 for a complete description of the register contents.
    Bit
    7
    6
    5
    4
    3
    2
    1
    0
    Name
    ExCA address window enable
    Type
    RW
    RW
    R
    RW
    RW
    RW
    RW
    RW
    Default
    0
    0
    0
    0
    0
    0
    0
    0
    Register:
    Offset:
    ExCA address window enable
    CardBus socket address + 806h; Card A ExCA offset 06h
    Card B ExCA offset 46h
    Type:
    Default:
    Read-only, Read/Write
    00h
    Table 5
    9. ExCA Address Window Enable Register Description
    BIT
    SIGNAL
    TYPE
    FUNCTION
    7
    IOWIN1EN
    RW
    I/O window 1 enable. Bit 7 enables/disables I/O window 1 for the PC Card. This bit is encoded as:
    0 = I/O window 1 disabled (default)
    1 = I/O window 1 enabled
    6
    IOWIN0EN
    RW
    I/O window 0 enable. Bit 6 enables/disables I/O window 0 for the PC Card. This bit is encoded as:
    0 = I/O window 0 disabled (default)
    1 = I/O window 0 enabled
    5
    RSVD
    R
    Reserved. Bit 5 returns 0 when read.
    4
    MEMWIN4EN
    RW
    Memory window 4 enable. Bit 4 enables/disables memory window 4 for the PC Card. This bit is
    encoded as:
    0 = Memory window 4 disabled (default)
    1 = Memory window 4 enabled
    3
    MEMWIN3EN
    RW
    Memory window 3 enable. Bit 3 enables/disables memory window 3 for the PC Card. This bit is
    encoded as:
    0 = Memory window 3 disabled (default)
    1 = Memory window 3 enabled
    2
    MEMWIN2EN
    RW
    Memory window 2 enable. Bit 2 enables/disables memory window 2 for the PC Card. This bit is
    encoded as:
    0 = Memory window 2 disabled (default)
    1 = Memory window 2 enabled
    1
    MEMWIN1EN
    RW
    Memory window 1 enable. Bit 1 enables/disables memory window 1 for the PC Card. This bit is
    encoded as:
    0 = Memory window 1 disabled (default)
    1 = Memory window 1 enabled
    0
    MEMWIN0EN
    RW
    Memory window 0 enable. Bit 0 enables/disables memory window 0 for the PC Card. This bit is
    encoded as:
    0 = Memory window 0 disabled (default)
    1 = Memory window 0 enabled
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