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  • 參數(shù)資料
    型號: LFECP3E-3F256C
    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
    文件頁數(shù): 14/117頁
    文件大小: 557K
    代理商: LFECP3E-3F256C
    2-11
    Architecture
    Lattice Semiconductor
    LatticeECP/EC Family Data Sheet
    Table 2-5. PLL Signal Descriptions
    For more information on the PLL, please see details of additional technical documentation at the end of this data
    sheet.
    Dynamic Clock Select (DCS)
    The DCS is a global clock buffer with smart multiplexer functions. It takes two independent input clock sources and
    outputs a clock signal without any glitches or runt pulses. This is achieved irrespective of where the select signal is
    toggled. There are eight DCS blocks per device, located in pairs at the center of each side. Figure 2-13 illustrates
    the DCS Block Macro.
    Figure 2-13. DCS Block Primitive
    Figure 2-14 shows timing waveforms of the default DCS operating mode. The DCS block can be programmed to
    other modes. For more information on the DCS, please see details of additional technical documentation at the end
    of this data sheet.
    Signal
    I/O
    I
    I
    I
    O
    O
    O
    O
    I
    I
    I
    I
    O
    O
    O
    Description
    CLKI
    CLKFB
    RST
    CLKOS
    CLKOP
    CLKOK
    LOCK
    DDAMODE
    DDAIZR
    DDAILAG
    DDAIDEL[2:0]
    DDAOZR
    DDAOLAG
    DDAODEL[2:0]
    Clock input from external pin or routing
    PLL feedback input from CLKOP, clocknet, or external pin
    “1” to reset PLL
    PLL output clock to clock tree (phase shifted/duty cycle changed)
    PLL output clock to clock tree (No phase shift)
    PLL output to clock tree through secondary clock divider
    “1” indicates PLL LOCK to CLKI
    Dynamic Delay Enable. “1”: Pin control (dynamic), “0”: Fuse Control (static)
    Dynamic Delay Zero. “1”: delay = 0, “0”: delay = on
    Dynamic Delay Lag/Lead. “1”: Lead, “0”: Lag
    Dynamic Delay Input
    Dynamic Delay Zero Output
    Dynamic Delay Lag/Lead Output
    Dynamic Delay Output
    DCS
    CLK0
    DCSOUT
    CLK1
    SEL
    相關PDF資料
    PDF描述
    LFECP3E-3F256I LatticeECP/EC Family Data Sheet
    LFECP3E-3F484I LatticeECP/EC Family Data Sheet
    LFECP3E-3F900I LatticeECP/EC Family Data Sheet
    LFECP3E-3T100C LatticeECP/EC Family Data Sheet
    LFECP3E-3T100I LatticeECP/EC Family Data Sheet
    相關代理商/技術參數(shù)
    參數(shù)描述
    LFECP3E-3F256I 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:LatticeECP/EC Family Data Sheet
    LFECP3E-3F484C 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:LatticeECP/EC Family Data Sheet
    LFECP3E-3F484I 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:LatticeECP/EC Family Data Sheet
    LFECP3E-3F672C 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:LatticeECP/EC Family Data Sheet
    LFECP3E-3F672I 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:LatticeECP/EC Family Data Sheet