The-OpenROAD-Project_OpenSTA/examples/example1.sdf

(DELAYFILE
 (SDFVERSION "OVI 2.1")
 (DESIGN "top")
 (DATE "Thu Mar  2 20:33:26 2000")
 (VENDOR "slow")
 (PROGRAM "Hand job")
 (VERSION "69")
 (DIVIDER /)
 (VOLTAGE 2.25:2.25:2.25)
 (PROCESS "1.000:1.000:1.000")
 (TEMPERATURE 125.00:125.00:125.00)
 (TIMESCALE 1ns)
 (CELL
  (CELLTYPE "top")
  (INSTANCE)
  (DELAY
   (ABSOLUTE
    // Offset in1 vs in2, rise vs fall arrivals so results are deterministic.
    (INTERCONNECT in1 r1/D (0.011:0.011:0.011) (0.01:0.01:0.01))
    (INTERCONNECT in2 r2/D (0.021:0.021:0.021) (0.02:0.02:0.02))
    (INTERCONNECT clk1 r1/CK (0.0:0.0:0.0) (0.0:0.0:0.0))
    (INTERCONNECT clk2 r2/CK (0.0:0.0:0.0) (0.0:0.0:0.0))
    (INTERCONNECT clk3 r3/CK (0.0:0.0:0.0) (0.0:0.0:0.0))
    (INTERCONNECT r1/Q u2/A1 (0.0:0.0:0.0) (0.0:0.0:0.0))
    (INTERCONNECT r2/Q u1/A (0.0:0.0:0.0) (0.0:0.0:0.0))
    (INTERCONNECT u1/Z u2/A2 (0.0:0.0:0.0) (0.0:0.0:0.0))
    (INTERCONNECT u2/ZN r3/D (0.0:0.0:0.0) (0.0:0.0:0.0))
    (INTERCONNECT r3/Q out (0.0:0.0:0.0) (0.0:0.0:0.0))
    )
   )
  )
 (CELL
  (CELLTYPE "DFF_X1")
  (INSTANCE r1)
  (DELAY
   (ABSOLUTE
    (IOPATH CK Q (1:1:1) (1.1:1.1:1.1))
    )
   )
  (TIMINGCHECK
   (SETUP D (posedge CK) (.5:.5:.5))
   (HOLD D (posedge CK) (.1:.1:.1))
   (PERIOD (posedge CK) (1.0:2.0:3.0))
  )
  )
(CELL
  (CELLTYPE "DFF_X1")
  (INSTANCE r2)
  (DELAY
   (ABSOLUTE
    (IOPATH CK Q (1:1:1) (1.1:1.1:1.1))
    )
   )
  (TIMINGCHECK
   (SETUP D (posedge CK) (.5:.5:.5))
   (HOLD D (posedge CK) (.1:.1:.1))
   (PERIOD (posedge CK) (1.0:2.0:3.0))
  )
  )
(CELL
  (CELLTYPE "DFF_X1")
  (INSTANCE r3)
  (DELAY
   (ABSOLUTE
    (IOPATH CK Q (1:1:1) (1.1:1.1:1.1))
    )
   )
  (TIMINGCHECK
   (SETUP D (posedge CK) (.5:.5:.5))
   (HOLD D (posedge CK) (.1:.1:.1))
   (PERIOD (posedge CK) (1.0:2.0:3.0))
  )
  )
 (CELL
  (CELLTYPE "BUF_X1")
  (INSTANCE u1)
  (DELAY
   (ABSOLUTE
    (IOPATH A Z (1:1:1) (1.1:1.1:1.1))
    )
   )
  )
 (CELL
  (CELLTYPE "AND2_X1")
  (INSTANCE u2)
  (DELAY
   (ABSOLUTE
    (IOPATH A1 ZN (1:1:1) (1.1:1.1:1.1))
    (IOPATH A2 ZN (1:1:1) (1.1:1.1:1.1))
    )
   )
  )
 )