dll_4_map.sdf

倍频详解

(DELAYFILE
  (SDFVERSION "3.0")
  (DESIGN "dll_4")
  (DATE "Thu Dec 06 16:26:48 2007")
  (VENDOR "Xilinx")
  (PROGRAM "Xilinx SDF Writer")
  (VERSION "J.30")
  (DIVIDER /)
  (VOLTAGE 2.375)
  (TEMPERATURE 85)
  (TIMESCALE 1 ps)
  (CELL (CELLTYPE "X_OBUF")
    (INSTANCE clkout_OBUF)
      (DELAY
        (ABSOLUTE
          (IOPATH I O ( 3755 ))
        )
      )
  )
  (CELL (CELLTYPE "X_BUF")
    (INSTANCE clkout_OUTMUX)
      (DELAY
        (ABSOLUTE
          (IOPATH I O ( 913 ))
        )
      )
  )
  (CELL (CELLTYPE "X_INV")
    (INSTANCE U5_RSTMUX)
      (DELAY
        (ABSOLUTE
          (IOPATH I O ( 310 )( 310 ))
        )
      )
  )
  (CELL (CELLTYPE "X_CLKDLL")
    (INSTANCE U5)
      (DELAY
        (ABSOLUTE
          (PORT CLKIN ( 0 ))
          (PORT CLKFB ( 0 ))
          (PORT RST ( 295 ))
          (IOPATH CLKIN LOCKED ( 1177 ))
        )
      )
      (TIMINGCHECK
        (WIDTH (posedge CLKIN) (2500))
        (WIDTH (negedge CLKIN) (2500))
        (PERIOD (posedge CLKIN) (10000:10000:10000))
        (WIDTH (posedge RST) (3000))
      )
  )
  (CELL (CELLTYPE "X_CLKDLL")
    (INSTANCE u1)
      (DELAY
        (ABSOLUTE
          (PORT CLKIN ( 0 ))
          (PORT CLKFB ( 915 ))
          (IOPATH CLKIN LOCKED ( 1177 ))
        )
      )
      (TIMINGCHECK
        (WIDTH (posedge CLKIN) (2500))
        (WIDTH (negedge CLKIN) (2500))
        (PERIOD (posedge CLKIN) (10000:10000:10000))
        (WIDTH (posedge RST) (3000))
      )
  )
  (CELL (CELLTYPE "X_SRL16E")
    (INSTANCE u3_SRL16E)
      (DELAY
        (ABSOLUTE
          (PORT D ( 160 ))
          (IOPATH A0 Q ( 239 )( 239 ))
          (IOPATH A1 Q ( 239 )( 239 ))
          (IOPATH A2 Q ( 239 )( 239 ))
          (IOPATH A3 Q ( 239 )( 239 ))
          (IOPATH CLK Q ( 3051 )( 3051 ))
        )
      )
      (TIMINGCHECK
        (SETUPHOLD (posedge D) (posedge CLK) (602)(0))
        (SETUPHOLD (negedge D) (posedge CLK) (602)(0))
        (SETUPHOLD (posedge CE) (posedge CLK) (602)(0))
        (SETUPHOLD (negedge CE) (posedge CLK) (602)(0))
        (PERIOD (posedge CLK) (5778))
      )
  )
  (CELL (CELLTYPE "X_CKBUF")
    (INSTANCE clk_BUF)
      (DELAY
        (ABSOLUTE
          (IOPATH I O ( 657 ))
        )
      )
  )
  (CELL (CELLTYPE "X_CKBUF")
    (INSTANCE u2_BUF)
      (DELAY
        (ABSOLUTE
          (IOPATH I O ( 649 ))
        )
      )
  )
  (CELL (CELLTYPE "X_CKBUF")
    (INSTANCE u6_BUF)
      (DELAY
        (ABSOLUTE
          (IOPATH I O ( 649 ))
        )
      )
  )
)