DLX-Microprocessor / synthesis / dlx_syn / timing / dlx-report-timing-lower-bound.txt
dlx-report-timing-lower-bound.txt
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Information: Updating design information... (UID-85)
Warning: Design 'DLX' contains 1 high-fanout nets. A fanout number of 1000 will be used for delay calculations involving these nets. (TIM-134)
 
****************************************
Report : timing
        -path full
        -delay max
        -nworst 10
        -max_paths 10
Design : DLX
Version: S-2021.06-SP4
Date   : Fri Jul 18 23:08:13 2025
****************************************

 # A fanout number of 1000 was used for high fanout net computations.

Operating Conditions: typical   Library: NangateOpenCellLibrary
Wire Load Model Mode: top

  Startpoint: datapath_inst/fetch_inst/IR_reg[28]
              (rising edge-triggered flip-flop clocked by clk)
  Endpoint: CU_inst/alu_func_type_reg[5]
            (rising edge-triggered flip-flop clocked by clk)
  Path Group: clk
  Path Type: max

  Des/Clust/Port     Wire Load Model       Library
  ------------------------------------------------
  DLX                5K_hvratio_1_1        NangateOpenCellLibrary

  Point                                                   Incr       Path
  --------------------------------------------------------------------------
  clock clk (rise edge)                                   0.00       0.00
  clock network delay (ideal)                             0.00       0.00
  datapath_inst/fetch_inst/IR_reg[28]/CK (SDFFS_X1)       0.00 #     0.00 r
  datapath_inst/fetch_inst/IR_reg[28]/Q (SDFFS_X1)        0.07       0.07 f
  datapath_inst/fetch_inst/IR_out[28] (fetch_stage_OPERAND_SIZE32_I_SIZE32)
                                                          0.00       0.07 f
  datapath_inst/U4/ZN (OR2_X2)                            0.06       0.13 f
  datapath_inst/IR_out[28] (datapath_I_SIZE32_OPERAND_SIZE32_NUM_REG5_FUN_SIZE11)
                                                          0.00       0.13 f
  CU_inst/IR_IN[28] (control_unit_MICROCODE_MEM_SIZE10_FUN_SIZE11_OP_CODE_SIZE6_IR_SIZE32_CW_SIZE15)
                                                          0.00       0.13 f
  CU_inst/U41/ZN (INV_X1)                                 0.03       0.15 r
  CU_inst/U42/ZN (OAI211_X1)                              0.04       0.19 f
  CU_inst/U39/ZN (OAI211_X1)                              0.04       0.23 r
  CU_inst/U17/ZN (NAND2_X1)                               0.03       0.26 f
  CU_inst/alu_func_type_reg[5]/D (DFF_X1)                 0.01       0.27 f
  data arrival time                                                  0.27

  clock clk (rise edge)                                   0.00       0.00
  clock network delay (ideal)                             0.00       0.00
  CU_inst/alu_func_type_reg[5]/CK (DFF_X1)                0.00       0.00 r
  library setup time                                     -0.04      -0.04
  data required time                                                -0.04
  --------------------------------------------------------------------------
  data required time                                                -0.04
  data arrival time                                                 -0.27
  --------------------------------------------------------------------------
  slack (VIOLATED)                                                  -0.31


  Startpoint: datapath_inst/fetch_inst/IR_reg[28]
              (rising edge-triggered flip-flop clocked by clk)
  Endpoint: CU_inst/alu_func_type_reg[5]
            (rising edge-triggered flip-flop clocked by clk)
  Path Group: clk
  Path Type: max

  Des/Clust/Port     Wire Load Model       Library
  ------------------------------------------------
  DLX                5K_hvratio_1_1        NangateOpenCellLibrary

  Point                                                   Incr       Path
  --------------------------------------------------------------------------
  clock clk (rise edge)                                   0.00       0.00
  clock network delay (ideal)                             0.00       0.00
  datapath_inst/fetch_inst/IR_reg[28]/CK (SDFFS_X1)       0.00 #     0.00 r
  datapath_inst/fetch_inst/IR_reg[28]/Q (SDFFS_X1)        0.07       0.07 f
  datapath_inst/fetch_inst/IR_out[28] (fetch_stage_OPERAND_SIZE32_I_SIZE32)
                                                          0.00       0.07 f
  datapath_inst/U4/ZN (OR2_X2)                            0.06       0.13 f
  datapath_inst/IR_out[28] (datapath_I_SIZE32_OPERAND_SIZE32_NUM_REG5_FUN_SIZE11)
                                                          0.00       0.13 f
  CU_inst/IR_IN[28] (control_unit_MICROCODE_MEM_SIZE10_FUN_SIZE11_OP_CODE_SIZE6_IR_SIZE32_CW_SIZE15)
                                                          0.00       0.13 f
  CU_inst/U41/ZN (INV_X1)                                 0.03       0.15 r
  CU_inst/U42/ZN (OAI211_X1)                              0.04       0.19 f
  CU_inst/U39/ZN (OAI211_X1)                              0.04       0.23 r
  CU_inst/U17/ZN (NAND2_X1)                               0.03       0.26 f
  CU_inst/alu_func_type_reg[5]/D (DFF_X1)                 0.01       0.26 f
  data arrival time                                                  0.26

  clock clk (rise edge)                                   0.00       0.00
  clock network delay (ideal)                             0.00       0.00
  CU_inst/alu_func_type_reg[5]/CK (DFF_X1)                0.00       0.00 r
  library setup time                                     -0.04      -0.04
  data required time                                                -0.04
  --------------------------------------------------------------------------
  data required time                                                -0.04
  data arrival time                                                 -0.26
  --------------------------------------------------------------------------
  slack (VIOLATED)                                                  -0.30


  Startpoint: datapath_inst/fetch_inst/IR_reg[30]
              (rising edge-triggered flip-flop clocked by clk)
  Endpoint: CU_inst/alu_func_type_reg[5]
            (rising edge-triggered flip-flop clocked by clk)
  Path Group: clk
  Path Type: max

  Des/Clust/Port     Wire Load Model       Library
  ------------------------------------------------
  DLX                5K_hvratio_1_1        NangateOpenCellLibrary

  Point                                                   Incr       Path
  --------------------------------------------------------------------------
  clock clk (rise edge)                                   0.00       0.00
  clock network delay (ideal)                             0.00       0.00
  datapath_inst/fetch_inst/IR_reg[30]/CK (DFFS_X1)        0.00 #     0.00 r
  datapath_inst/fetch_inst/IR_reg[30]/Q (DFFS_X1)         0.08       0.08 f
  datapath_inst/fetch_inst/IR_out[30] (fetch_stage_OPERAND_SIZE32_I_SIZE32)
                                                          0.00       0.08 f
  datapath_inst/U36/ZN (OR2_X2)                           0.06       0.14 f
  datapath_inst/IR_out[30] (datapath_I_SIZE32_OPERAND_SIZE32_NUM_REG5_FUN_SIZE11)
                                                          0.00       0.14 f
  CU_inst/IR_IN[30] (control_unit_MICROCODE_MEM_SIZE10_FUN_SIZE11_OP_CODE_SIZE6_IR_SIZE32_CW_SIZE15)
                                                          0.00       0.14 f
  CU_inst/U65/ZN (NOR2_X1)                                0.04       0.18 r
  CU_inst/U39/ZN (OAI211_X1)                              0.05       0.23 f
  CU_inst/U17/ZN (NAND2_X1)                               0.03       0.26 r
  CU_inst/alu_func_type_reg[5]/D (DFF_X1)                 0.01       0.27 r
  data arrival time                                                  0.27

  clock clk (rise edge)                                   0.00       0.00
  clock network delay (ideal)                             0.00       0.00
  CU_inst/alu_func_type_reg[5]/CK (DFF_X1)                0.00       0.00 r
  library setup time                                     -0.03      -0.03
  data required time                                                -0.03
  --------------------------------------------------------------------------
  data required time                                                -0.03
  data arrival time                                                 -0.27
  --------------------------------------------------------------------------
  slack (VIOLATED)                                                  -0.30


  Startpoint: datapath_inst/fetch_inst/IR_reg[28]
              (rising edge-triggered flip-flop clocked by clk)
  Endpoint: CU_inst/alu_func_type_reg[5]
            (rising edge-triggered flip-flop clocked by clk)
  Path Group: clk
  Path Type: max

  Des/Clust/Port     Wire Load Model       Library
  ------------------------------------------------
  DLX                5K_hvratio_1_1        NangateOpenCellLibrary

  Point                                                   Incr       Path
  --------------------------------------------------------------------------
  clock clk (rise edge)                                   0.00       0.00
  clock network delay (ideal)                             0.00       0.00
  datapath_inst/fetch_inst/IR_reg[28]/CK (SDFFS_X1)       0.00 #     0.00 r
  datapath_inst/fetch_inst/IR_reg[28]/Q (SDFFS_X1)        0.07       0.07 r
  datapath_inst/fetch_inst/IR_out[28] (fetch_stage_OPERAND_SIZE32_I_SIZE32)
                                                          0.00       0.07 r
  datapath_inst/U4/ZN (OR2_X2)                            0.04       0.11 r
  datapath_inst/IR_out[28] (datapath_I_SIZE32_OPERAND_SIZE32_NUM_REG5_FUN_SIZE11)
                                                          0.00       0.11 r
  CU_inst/IR_IN[28] (control_unit_MICROCODE_MEM_SIZE10_FUN_SIZE11_OP_CODE_SIZE6_IR_SIZE32_CW_SIZE15)
                                                          0.00       0.11 r
  CU_inst/U41/ZN (INV_X1)                                 0.02       0.14 f
  CU_inst/U42/ZN (OAI211_X1)                              0.05       0.18 r
  CU_inst/U39/ZN (OAI211_X1)                              0.05       0.23 f
  CU_inst/U17/ZN (NAND2_X1)                               0.03       0.26 r
  CU_inst/alu_func_type_reg[5]/D (DFF_X1)                 0.01       0.27 r
  data arrival time                                                  0.27

  clock clk (rise edge)                                   0.00       0.00
  clock network delay (ideal)                             0.00       0.00
  CU_inst/alu_func_type_reg[5]/CK (DFF_X1)                0.00       0.00 r
  library setup time                                     -0.03      -0.03
  data required time                                                -0.03
  --------------------------------------------------------------------------
  data required time                                                -0.03
  data arrival time                                                 -0.27
  --------------------------------------------------------------------------
  slack (VIOLATED)                                                  -0.30


  Startpoint: datapath_inst/fetch_inst/IR_reg[26]
              (rising edge-triggered flip-flop clocked by clk)
  Endpoint: CU_inst/alu_func_type_reg[2]
            (rising edge-triggered flip-flop clocked by clk)
  Path Group: clk
  Path Type: max

  Des/Clust/Port     Wire Load Model       Library
  ------------------------------------------------
  DLX                5K_hvratio_1_1        NangateOpenCellLibrary

  Point                                                   Incr       Path
  --------------------------------------------------------------------------
  clock clk (rise edge)                                   0.00       0.00
  clock network delay (ideal)                             0.00       0.00
  datapath_inst/fetch_inst/IR_reg[26]/CK (DFFS_X1)        0.00 #     0.00 r
  datapath_inst/fetch_inst/IR_reg[26]/Q (DFFS_X1)         0.09       0.09 r
  datapath_inst/fetch_inst/IR_out[26] (fetch_stage_OPERAND_SIZE32_I_SIZE32)
                                                          0.00       0.09 r
  datapath_inst/U35/ZN (OR2_X1)                           0.04       0.13 r
  datapath_inst/IR_out[26] (datapath_I_SIZE32_OPERAND_SIZE32_NUM_REG5_FUN_SIZE11)
                                                          0.00       0.13 r
  CU_inst/IR_IN[26] (control_unit_MICROCODE_MEM_SIZE10_FUN_SIZE11_OP_CODE_SIZE6_IR_SIZE32_CW_SIZE15)
                                                          0.00       0.13 r
  CU_inst/U46/ZN (INV_X1)                                 0.02       0.15 f
  CU_inst/U47/ZN (AND2_X1)                                0.03       0.18 f
  CU_inst/U36/ZN (NOR3_X1)                                0.05       0.23 r
  CU_inst/U76/ZN (NOR2_X1)                                0.02       0.25 f
  CU_inst/alu_func_type_reg[2]/D (DFF_X1)                 0.01       0.26 f
  data arrival time                                                  0.26

  clock clk (rise edge)                                   0.00       0.00
  clock network delay (ideal)                             0.00       0.00
  CU_inst/alu_func_type_reg[2]/CK (DFF_X1)                0.00       0.00 r
  library setup time                                     -0.04      -0.04
  data required time                                                -0.04
  --------------------------------------------------------------------------
  data required time                                                -0.04
  data arrival time                                                 -0.26
  --------------------------------------------------------------------------
  slack (VIOLATED)                                                  -0.30


  Startpoint: datapath_inst/fetch_inst/IR_reg[26]
              (rising edge-triggered flip-flop clocked by clk)
  Endpoint: CU_inst/alu_func_type_reg[2]
            (rising edge-triggered flip-flop clocked by clk)
  Path Group: clk
  Path Type: max

  Des/Clust/Port     Wire Load Model       Library
  ------------------------------------------------
  DLX                5K_hvratio_1_1        NangateOpenCellLibrary

  Point                                                   Incr       Path
  --------------------------------------------------------------------------
  clock clk (rise edge)                                   0.00       0.00
  clock network delay (ideal)                             0.00       0.00
  datapath_inst/fetch_inst/IR_reg[26]/CK (DFFS_X1)        0.00 #     0.00 r
  datapath_inst/fetch_inst/IR_reg[26]/Q (DFFS_X1)         0.08       0.08 f
  datapath_inst/fetch_inst/IR_out[26] (fetch_stage_OPERAND_SIZE32_I_SIZE32)
                                                          0.00       0.08 f
  datapath_inst/U35/ZN (OR2_X1)                           0.06       0.14 f
  datapath_inst/IR_out[26] (datapath_I_SIZE32_OPERAND_SIZE32_NUM_REG5_FUN_SIZE11)
                                                          0.00       0.14 f
  CU_inst/IR_IN[26] (control_unit_MICROCODE_MEM_SIZE10_FUN_SIZE11_OP_CODE_SIZE6_IR_SIZE32_CW_SIZE15)
                                                          0.00       0.14 f
  CU_inst/U46/ZN (INV_X1)                                 0.03       0.16 r
  CU_inst/U47/ZN (AND2_X1)                                0.04       0.20 r
  CU_inst/U36/ZN (NOR3_X1)                                0.02       0.22 f
  CU_inst/U76/ZN (NOR2_X1)                                0.03       0.26 r
  CU_inst/alu_func_type_reg[2]/D (DFF_X1)                 0.01       0.26 r
  data arrival time                                                  0.26

  clock clk (rise edge)                                   0.00       0.00
  clock network delay (ideal)                             0.00       0.00
  CU_inst/alu_func_type_reg[2]/CK (DFF_X1)                0.00       0.00 r
  library setup time                                     -0.03      -0.03
  data required time                                                -0.03
  --------------------------------------------------------------------------
  data required time                                                -0.03
  data arrival time                                                 -0.26
  --------------------------------------------------------------------------
  slack (VIOLATED)                                                  -0.30


  Startpoint: datapath_inst/fetch_inst/IR_reg[30]
              (rising edge-triggered flip-flop clocked by clk)
  Endpoint: CU_inst/alu_func_type_reg[2]
            (rising edge-triggered flip-flop clocked by clk)
  Path Group: clk
  Path Type: max

  Des/Clust/Port     Wire Load Model       Library
  ------------------------------------------------
  DLX                5K_hvratio_1_1        NangateOpenCellLibrary

  Point                                                   Incr       Path
  --------------------------------------------------------------------------
  clock clk (rise edge)                                   0.00       0.00
  clock network delay (ideal)                             0.00       0.00
  datapath_inst/fetch_inst/IR_reg[30]/CK (DFFS_X1)        0.00 #     0.00 r
  datapath_inst/fetch_inst/IR_reg[30]/Q (DFFS_X1)         0.08       0.08 f
  datapath_inst/fetch_inst/IR_out[30] (fetch_stage_OPERAND_SIZE32_I_SIZE32)
                                                          0.00       0.08 f
  datapath_inst/U36/ZN (OR2_X2)                           0.06       0.14 f
  datapath_inst/IR_out[30] (datapath_I_SIZE32_OPERAND_SIZE32_NUM_REG5_FUN_SIZE11)
                                                          0.00       0.14 f
  CU_inst/IR_IN[30] (control_unit_MICROCODE_MEM_SIZE10_FUN_SIZE11_OP_CODE_SIZE6_IR_SIZE32_CW_SIZE15)
                                                          0.00       0.14 f
  CU_inst/U47/ZN (AND2_X1)                                0.04       0.18 f
  CU_inst/U36/ZN (NOR3_X1)                                0.05       0.23 r
  CU_inst/U76/ZN (NOR2_X1)                                0.02       0.25 f
  CU_inst/alu_func_type_reg[2]/D (DFF_X1)                 0.01       0.26 f
  data arrival time                                                  0.26

  clock clk (rise edge)                                   0.00       0.00
  clock network delay (ideal)                             0.00       0.00
  CU_inst/alu_func_type_reg[2]/CK (DFF_X1)                0.00       0.00 r
  library setup time                                     -0.04      -0.04
  data required time                                                -0.04
  --------------------------------------------------------------------------
  data required time                                                -0.04
  data arrival time                                                 -0.26
  --------------------------------------------------------------------------
  slack (VIOLATED)                                                  -0.30


  Startpoint: datapath_inst/fetch_inst/IR_reg[30]
              (rising edge-triggered flip-flop clocked by clk)
  Endpoint: CU_inst/alu_func_type_reg[5]
            (rising edge-triggered flip-flop clocked by clk)
  Path Group: clk
  Path Type: max

  Des/Clust/Port     Wire Load Model       Library
  ------------------------------------------------
  DLX                5K_hvratio_1_1        NangateOpenCellLibrary

  Point                                                   Incr       Path
  --------------------------------------------------------------------------
  clock clk (rise edge)                                   0.00       0.00
  clock network delay (ideal)                             0.00       0.00
  datapath_inst/fetch_inst/IR_reg[30]/CK (DFFS_X1)        0.00 #     0.00 r
  datapath_inst/fetch_inst/IR_reg[30]/Q (DFFS_X1)         0.08       0.08 f
  datapath_inst/fetch_inst/IR_out[30] (fetch_stage_OPERAND_SIZE32_I_SIZE32)
                                                          0.00       0.08 f
  datapath_inst/U36/ZN (OR2_X2)                           0.06       0.14 f
  datapath_inst/IR_out[30] (datapath_I_SIZE32_OPERAND_SIZE32_NUM_REG5_FUN_SIZE11)
                                                          0.00       0.14 f
  CU_inst/IR_IN[30] (control_unit_MICROCODE_MEM_SIZE10_FUN_SIZE11_OP_CODE_SIZE6_IR_SIZE32_CW_SIZE15)
                                                          0.00       0.14 f
  CU_inst/U65/ZN (NOR2_X1)                                0.04       0.18 r
  CU_inst/U39/ZN (OAI211_X1)                              0.04       0.23 f
  CU_inst/U17/ZN (NAND2_X1)                               0.03       0.26 r
  CU_inst/alu_func_type_reg[5]/D (DFF_X1)                 0.01       0.27 r
  data arrival time                                                  0.27

  clock clk (rise edge)                                   0.00       0.00
  clock network delay (ideal)                             0.00       0.00
  CU_inst/alu_func_type_reg[5]/CK (DFF_X1)                0.00       0.00 r
  library setup time                                     -0.03      -0.03
  data required time                                                -0.03
  --------------------------------------------------------------------------
  data required time                                                -0.03
  data arrival time                                                 -0.27
  --------------------------------------------------------------------------
  slack (VIOLATED)                                                  -0.30


  Startpoint: datapath_inst/fetch_inst/IR_reg[28]
              (rising edge-triggered flip-flop clocked by clk)
  Endpoint: CU_inst/alu_func_type_reg[5]
            (rising edge-triggered flip-flop clocked by clk)
  Path Group: clk
  Path Type: max

  Des/Clust/Port     Wire Load Model       Library
  ------------------------------------------------
  DLX                5K_hvratio_1_1        NangateOpenCellLibrary

  Point                                                   Incr       Path
  --------------------------------------------------------------------------
  clock clk (rise edge)                                   0.00       0.00
  clock network delay (ideal)                             0.00       0.00
  datapath_inst/fetch_inst/IR_reg[28]/CK (SDFFS_X1)       0.00 #     0.00 r
  datapath_inst/fetch_inst/IR_reg[28]/Q (SDFFS_X1)        0.07       0.07 r
  datapath_inst/fetch_inst/IR_out[28] (fetch_stage_OPERAND_SIZE32_I_SIZE32)
                                                          0.00       0.07 r
  datapath_inst/U4/ZN (OR2_X2)                            0.04       0.11 r
  datapath_inst/IR_out[28] (datapath_I_SIZE32_OPERAND_SIZE32_NUM_REG5_FUN_SIZE11)
                                                          0.00       0.11 r
  CU_inst/IR_IN[28] (control_unit_MICROCODE_MEM_SIZE10_FUN_SIZE11_OP_CODE_SIZE6_IR_SIZE32_CW_SIZE15)
                                                          0.00       0.11 r
  CU_inst/U41/ZN (INV_X1)                                 0.02       0.14 f
  CU_inst/U42/ZN (OAI211_X1)                              0.05       0.18 r
  CU_inst/U39/ZN (OAI211_X1)                              0.04       0.22 f
  CU_inst/U17/ZN (NAND2_X1)                               0.03       0.25 r
  CU_inst/alu_func_type_reg[5]/D (DFF_X1)                 0.01       0.26 r
  data arrival time                                                  0.26

  clock clk (rise edge)                                   0.00       0.00
  clock network delay (ideal)                             0.00       0.00
  CU_inst/alu_func_type_reg[5]/CK (DFF_X1)                0.00       0.00 r
  library setup time                                     -0.03      -0.03
  data required time                                                -0.03
  --------------------------------------------------------------------------
  data required time                                                -0.03
  data arrival time                                                 -0.26
  --------------------------------------------------------------------------
  slack (VIOLATED)                                                  -0.29


  Startpoint: datapath_inst/fetch_inst/IR_reg[30]
              (rising edge-triggered flip-flop clocked by clk)
  Endpoint: CU_inst/alu_func_type_reg[5]
            (rising edge-triggered flip-flop clocked by clk)
  Path Group: clk
  Path Type: max

  Des/Clust/Port     Wire Load Model       Library
  ------------------------------------------------
  DLX                5K_hvratio_1_1        NangateOpenCellLibrary

  Point                                                   Incr       Path
  --------------------------------------------------------------------------
  clock clk (rise edge)                                   0.00       0.00
  clock network delay (ideal)                             0.00       0.00
  datapath_inst/fetch_inst/IR_reg[30]/CK (DFFS_X1)        0.00 #     0.00 r
  datapath_inst/fetch_inst/IR_reg[30]/Q (DFFS_X1)         0.09       0.09 r
  datapath_inst/fetch_inst/IR_out[30] (fetch_stage_OPERAND_SIZE32_I_SIZE32)
                                                          0.00       0.09 r
  datapath_inst/U36/ZN (OR2_X2)                           0.04       0.13 r
  datapath_inst/IR_out[30] (datapath_I_SIZE32_OPERAND_SIZE32_NUM_REG5_FUN_SIZE11)
                                                          0.00       0.13 r
  CU_inst/IR_IN[30] (control_unit_MICROCODE_MEM_SIZE10_FUN_SIZE11_OP_CODE_SIZE6_IR_SIZE32_CW_SIZE15)
                                                          0.00       0.13 r
  CU_inst/U65/ZN (NOR2_X1)                                0.03       0.16 f
  CU_inst/U39/ZN (OAI211_X1)                              0.04       0.20 r
  CU_inst/U17/ZN (NAND2_X1)                               0.03       0.23 f
  CU_inst/alu_func_type_reg[5]/D (DFF_X1)                 0.01       0.24 f
  data arrival time                                                  0.24

  clock clk (rise edge)                                   0.00       0.00
  clock network delay (ideal)                             0.00       0.00
  CU_inst/alu_func_type_reg[5]/CK (DFF_X1)                0.00       0.00 r
  library setup time                                     -0.04      -0.04
  data required time                                                -0.04
  --------------------------------------------------------------------------
  data required time                                                -0.04
  data arrival time                                                 -0.24
  --------------------------------------------------------------------------
  slack (VIOLATED)                                                  -0.28


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