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  • 參數(shù)資料
    型號: EP1C6Q324C8
    廠商: Altera Corporation
    英文描述: Cyclone FPGA Family
    中文描述: 氣旋FPGA系列
    文件頁數(shù): 18/94頁
    文件大?。?/td> 1138K
    代理商: EP1C6Q324C8
    18
    Altera Corporation
    Cyclone FPGA Family Data Sheet
    Preliminary Information
    The R4 interconnects span four LABs, or two LABs and one M4K RAM
    block. These resources are used for fast row connections in a four-LAB
    region. Every LAB has its own set of R4 interconnects to drive either left
    or right.
    Figure 9
    shows R4 interconnect connections from an LAB. R4
    interconnects can drive and be driven by M4K memory blocks, PLLs, and
    row IOEs. For LAB interfacing, a primary LAB or LAB neighbor can drive
    a given R4 interconnect. For R4 interconnects that drive to the right, the
    primary LAB and right neighbor can drive on to the interconnect. For R4
    interconnects that drive to the left, the primary LAB and its left neighbor
    can drive on to the interconnect. R4 interconnects can drive other R4
    interconnects to extend the range of LABs they can drive. R4 interconnects
    can also drive C4 interconnects for connections from one row to another.
    Figure 9. R4 Interconnect Connections
    Notes to
    Figure 9
    :
    (1)
    C4 interconnects can drive R4 interconnects.
    (2)
    This pattern is repeated for every LAB in the LAB row.
    The column interconnect operates similarly to the row interconnect. Each
    column of LABs is served by a dedicated column interconnect, which
    vertically routes signals to and from LABs, M4K memory blocks, and row
    and column IOEs. These column resources include:
    LUT chain interconnects within an LAB
    Register chain interconnects within an LAB
    C4 interconnects traversing a distance of four blocks in an up and
    down direction
    Primary
    LAB (2)
    R4 Interconnect
    Driving Left
    Adjacent LAB can
    LAB's R4 Interconnect
    C4 Column Interconnects (1)
    R4 Interconnect
    Driving Right
    LAB
    Neighbor
    LAB
    Neighbor
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