參數(shù)資料
    型號(hào): LFEC10E-3F672I
    廠商: Lattice Semiconductor Corporation
    英文描述: LatticeECP/EC Family Data Sheet
    中文描述: LatticeECP / EC的系列數(shù)據(jù)手冊(cè)
    文件頁數(shù): 27/117頁
    文件大?。?/td> 557K
    代理商: LFEC10E-3F672I
    2-24
    Architecture
    Lattice Semiconductor
    LatticeECP/EC Family Data Sheet
    Figure 2-26. Input Register DDR Waveforms
    Figure 2-27. INDDRXB Primitive
    Output Register Block
    The output register block provides the ability to register signals from the core of the device before they are passed
    to the sysIO buffers. The block contains a register for SDR operation that is combined with an additional latch for
    DDR operation. Figure 2-28 shows the diagram of the Output Register Block.
    In SDR mode, ONEG0 feeds one of the
    fl
    ip-
    fl
    ops that then feeds the output. The
    fl
    ip-
    fl
    op can be con
    fi
    gured a D-
    type or latch. In DDR mode, ONEG0 is fed into one register on the positive edge of the clock and OPOS0 is
    latched. A multiplexer running off the same clock selects the correct register for feeding to the output (D0).
    Figure 2-29 shows the design tool DDR primitives. The SDR output register has reset and clock enable available.
    The additional register for DDR operation does not have reset or clock enable available.
    A
    B
    C
    D
    E
    F
    B
    D
    DI
    (In DDR Mode)
    D0
    D2
    DQS
    A
    C
    DQS
    Delayed
    IDDRXB
    LSR
    SCLK
    CE
    QA
    D
    ECLK
    QB
    DDRCLKPOL
    相關(guān)PDF資料
    PDF描述
    LFECP10E-3F672I LatticeECP/EC Family Data Sheet
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    LFECP15E-3F672I LatticeECP/EC Family Data Sheet
    LFEC1E-3F900C LatticeECP/EC Family Data Sheet
    LFECP1E-3F900C LatticeECP/EC Family Data Sheet
    相關(guān)代理商/技術(shù)參數(shù)
    參數(shù)描述
    LFEC10E-3F900C 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:LatticeECP/EC Family Data Sheet
    LFEC10E-3F900I 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:LatticeECP/EC Family Data Sheet
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