mirror of https://github.com/efabless/caravel.git
262 lines
16 KiB
Plaintext
262 lines
16 KiB
Plaintext
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===========================================================================
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report_checks -unconstrained
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============================================================================
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Startpoint: _419_ (rising edge-triggered flip-flop clocked by pll_clk90)
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Endpoint: _311_ (rising clock gating-check end-point clocked by pll_clk90')
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Path Group: **clock_gating_default**
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Path Type: max
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Fanout Cap Slew Delay Time Description
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-----------------------------------------------------------------------------
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0.00 0.00 clock pll_clk90 (rise edge)
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0.00 0.00 clock source latency
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0.30 0.00 0.00 ^ pll_clk90 (in)
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2 0.02 pll_clk90 (net)
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0.30 0.00 0.00 ^ clkbuf_0_pll_clk90/A (sky130_fd_sc_hd__clkbuf_16)
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0.05 0.22 0.22 ^ clkbuf_0_pll_clk90/X (sky130_fd_sc_hd__clkbuf_16)
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2 0.02 clknet_0_pll_clk90 (net)
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0.05 0.00 0.22 ^ clkbuf_1_1__f_pll_clk90/A (sky130_fd_sc_hd__clkbuf_16)
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0.07 0.16 0.37 ^ clkbuf_1_1__f_pll_clk90/X (sky130_fd_sc_hd__clkbuf_16)
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9 0.05 clknet_1_1__leaf_pll_clk90 (net)
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0.07 0.00 0.37 ^ _419_/CLK (sky130_fd_sc_hd__dfstp_1)
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0.13 0.60 0.97 ^ _419_/Q (sky130_fd_sc_hd__dfstp_1)
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4 0.01 divider2.odd_0.out_counter (net)
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0.13 0.00 0.97 ^ _309_/B (sky130_fd_sc_hd__and2_1)
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0.07 0.16 1.14 ^ _309_/X (sky130_fd_sc_hd__and2_1)
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1 0.01 _153_ (net)
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0.07 0.00 1.14 ^ _311_/A3 (sky130_fd_sc_hd__o31ai_2)
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1.14 data arrival time
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3.33 3.33 clock pll_clk90' (rise edge)
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0.00 3.33 clock source latency
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0.30 0.00 3.33 v pll_clk90 (in)
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2 0.02 pll_clk90 (net)
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0.30 0.00 3.33 v clkbuf_0_pll_clk90/A (sky130_fd_sc_hd__clkbuf_16)
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0.04 0.25 3.58 v clkbuf_0_pll_clk90/X (sky130_fd_sc_hd__clkbuf_16)
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2 0.02 clknet_0_pll_clk90 (net)
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0.04 0.00 3.58 v clkbuf_1_1__f_pll_clk90/A (sky130_fd_sc_hd__clkbuf_16)
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0.05 0.15 3.73 v clkbuf_1_1__f_pll_clk90/X (sky130_fd_sc_hd__clkbuf_16)
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9 0.05 clknet_1_1__leaf_pll_clk90 (net)
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0.05 0.00 3.74 v _209_/A1 (sky130_fd_sc_hd__mux2_1)
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0.07 0.29 4.03 v _209_/X (sky130_fd_sc_hd__mux2_1)
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1 0.01 _038_ (net)
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0.07 0.00 4.03 v _308_/B (sky130_fd_sc_hd__nand2b_2)
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0.05 0.07 4.10 ^ _308_/Y (sky130_fd_sc_hd__nand2b_2)
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1 0.00 _152_ (net)
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0.05 0.00 4.10 ^ _311_/B1 (sky130_fd_sc_hd__o31ai_2)
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-0.20 3.90 clock uncertainty
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0.04 3.93 clock reconvergence pessimism
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0.00 3.93 clock gating setup time
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3.93 data required time
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-----------------------------------------------------------------------------
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3.93 data required time
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-1.14 data arrival time
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-----------------------------------------------------------------------------
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2.79 slack (MET)
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Startpoint: _414_ (rising edge-triggered flip-flop clocked by ext_clk')
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Endpoint: resetb_sync (output port clocked by ext_clk)
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Path Group: ext_clk
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Path Type: max
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Fanout Cap Slew Delay Time Description
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-----------------------------------------------------------------------------
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12.50 12.50 clock ext_clk' (rise edge)
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0.00 12.50 clock source latency
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0.30 0.00 12.50 v ext_clk (in)
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2 0.01 ext_clk (net)
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0.30 0.00 12.50 v clkbuf_0_ext_clk/A (sky130_fd_sc_hd__clkbuf_16)
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0.04 0.27 12.77 v clkbuf_0_ext_clk/X (sky130_fd_sc_hd__clkbuf_16)
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2 0.02 clknet_0_ext_clk (net)
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0.04 0.00 12.77 v clkbuf_1_1__f_ext_clk/A (sky130_fd_sc_hd__clkbuf_16)
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0.02 0.13 12.91 v clkbuf_1_1__f_ext_clk/X (sky130_fd_sc_hd__clkbuf_16)
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1 0.00 clknet_1_1__leaf_ext_clk (net)
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0.02 0.00 12.91 v _207_/A0 (sky130_fd_sc_hd__mux2_1)
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0.08 0.33 13.24 v _207_/X (sky130_fd_sc_hd__mux2_1)
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1 0.01 _037_ (net)
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0.08 0.00 13.24 v clkbuf_0__037_/A (sky130_fd_sc_hd__clkbuf_16)
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0.03 0.17 13.41 v clkbuf_0__037_/X (sky130_fd_sc_hd__clkbuf_16)
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2 0.02 clknet_0__037_ (net)
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0.03 0.00 13.41 v clkbuf_1_0__f__037_/A (sky130_fd_sc_hd__clkbuf_16)
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0.03 0.13 13.54 v clkbuf_1_0__f__037_/X (sky130_fd_sc_hd__clkbuf_16)
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1 0.00 clknet_1_0__leaf__037_ (net)
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0.03 0.00 13.54 v _208_/A0 (sky130_fd_sc_hd__mux2_1)
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0.09 0.33 13.87 v _208_/X (sky130_fd_sc_hd__mux2_1)
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1 0.01 net11 (net)
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0.09 0.00 13.87 v clkbuf_0_net11/A (sky130_fd_sc_hd__clkbuf_16)
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0.03 0.17 14.04 v clkbuf_0_net11/X (sky130_fd_sc_hd__clkbuf_16)
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2 0.02 clknet_0_net11 (net)
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0.03 0.00 14.04 v clkbuf_1_1__f_net11/A (sky130_fd_sc_hd__clkbuf_16)
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0.04 0.15 14.19 v clkbuf_1_1__f_net11/X (sky130_fd_sc_hd__clkbuf_16)
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2 0.02 clknet_1_1__leaf_net11 (net)
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0.04 0.00 14.19 v _257__7/A (sky130_fd_sc_hd__inv_4)
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0.02 0.03 14.23 ^ _257__7/Y (sky130_fd_sc_hd__inv_4)
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1 0.00 net39 (net)
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0.02 0.00 14.23 ^ _414_/CLK (sky130_fd_sc_hd__dfstp_1)
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0.12 0.57 14.80 ^ _414_/Q (sky130_fd_sc_hd__dfstp_1)
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1 0.01 reset_delay[0] (net)
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0.12 0.00 14.80 ^ _256_/A (sky130_fd_sc_hd__clkinv_4)
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0.04 0.07 14.87 v _256_/Y (sky130_fd_sc_hd__clkinv_4)
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1 0.01 net12 (net)
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0.04 0.00 14.87 v output12/A (sky130_fd_sc_hd__buf_12)
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0.11 0.20 15.08 v output12/X (sky130_fd_sc_hd__buf_12)
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1 0.20 resetb_sync (net)
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0.11 0.00 15.08 v resetb_sync (out)
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15.08 data arrival time
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25.00 25.00 clock ext_clk (rise edge)
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0.00 25.00 clock network delay (propagated)
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-0.20 24.80 clock uncertainty
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0.00 24.80 clock reconvergence pessimism
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-5.00 19.80 output external delay
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19.80 data required time
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-----------------------------------------------------------------------------
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19.80 data required time
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-15.08 data arrival time
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-----------------------------------------------------------------------------
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4.72 slack (MET)
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Startpoint: _425_ (rising edge-triggered flip-flop clocked by pll_clk)
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Endpoint: _432_ (falling edge-triggered flip-flop clocked by pll_clk)
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Path Group: pll_clk
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Path Type: max
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Fanout Cap Slew Delay Time Description
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-----------------------------------------------------------------------------
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0.00 0.00 clock pll_clk (rise edge)
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0.00 0.00 clock source latency
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0.30 0.00 0.00 ^ pll_clk (in)
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2 0.02 pll_clk (net)
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0.30 0.00 0.00 ^ clkbuf_0_pll_clk/A (sky130_fd_sc_hd__clkbuf_16)
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0.05 0.22 0.22 ^ clkbuf_0_pll_clk/X (sky130_fd_sc_hd__clkbuf_16)
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2 0.02 clknet_0_pll_clk (net)
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0.05 0.00 0.22 ^ clkbuf_1_0__f_pll_clk/A (sky130_fd_sc_hd__clkbuf_16)
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0.07 0.16 0.37 ^ clkbuf_1_0__f_pll_clk/X (sky130_fd_sc_hd__clkbuf_16)
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10 0.05 clknet_1_0__leaf_pll_clk (net)
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0.07 0.00 0.38 ^ _425_/CLK (sky130_fd_sc_hd__dfrtp_1)
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0.04 0.38 0.76 v _425_/Q (sky130_fd_sc_hd__dfrtp_1)
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1 0.00 divider.odd_0.rst_pulse (net)
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0.04 0.00 0.76 v fanout26/A (sky130_fd_sc_hd__clkbuf_2)
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0.12 0.18 0.94 v fanout26/X (sky130_fd_sc_hd__clkbuf_2)
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6 0.03 net26 (net)
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0.12 0.00 0.94 v fanout25/A (sky130_fd_sc_hd__clkbuf_2)
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0.09 0.20 1.14 v fanout25/X (sky130_fd_sc_hd__clkbuf_2)
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6 0.02 net25 (net)
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0.09 0.00 1.14 v _297_/A_N (sky130_fd_sc_hd__nand2b_1)
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0.12 0.22 1.36 v _297_/Y (sky130_fd_sc_hd__nand2b_1)
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4 0.01 _001_ (net)
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0.12 0.00 1.36 v _204_/A0 (sky130_fd_sc_hd__mux2_1)
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0.12 0.40 1.76 v _204_/X (sky130_fd_sc_hd__mux2_1)
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3 0.02 _003_ (net)
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0.12 0.00 1.76 v _363_/S (sky130_fd_sc_hd__mux2_1)
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0.06 0.36 2.12 v _363_/X (sky130_fd_sc_hd__mux2_1)
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1 0.00 _097_ (net)
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0.06 0.00 2.12 v _432_/D (sky130_fd_sc_hd__dfrtn_1)
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2.12 data arrival time
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3.33 3.33 clock pll_clk (fall edge)
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0.00 3.33 clock source latency
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0.30 0.00 3.33 v pll_clk (in)
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2 0.02 pll_clk (net)
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0.30 0.00 3.33 v clkbuf_0_pll_clk/A (sky130_fd_sc_hd__clkbuf_16)
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0.04 0.25 3.58 v clkbuf_0_pll_clk/X (sky130_fd_sc_hd__clkbuf_16)
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2 0.02 clknet_0_pll_clk (net)
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0.04 0.00 3.58 v clkbuf_1_1__f_pll_clk/A (sky130_fd_sc_hd__clkbuf_16)
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0.05 0.15 3.74 v clkbuf_1_1__f_pll_clk/X (sky130_fd_sc_hd__clkbuf_16)
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14 0.05 clknet_1_1__leaf_pll_clk (net)
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0.05 0.00 3.74 v _432_/CLK_N (sky130_fd_sc_hd__dfrtn_1)
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-0.20 3.54 clock uncertainty
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0.02 3.56 clock reconvergence pessimism
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-0.16 3.40 library setup time
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3.40 data required time
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-----------------------------------------------------------------------------
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3.40 data required time
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-2.12 data arrival time
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-----------------------------------------------------------------------------
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1.28 slack (MET)
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Startpoint: _469_ (rising edge-triggered flip-flop clocked by pll_clk90)
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Endpoint: _457_ (falling edge-triggered flip-flop clocked by pll_clk90)
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Path Group: pll_clk90
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Path Type: max
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Fanout Cap Slew Delay Time Description
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-----------------------------------------------------------------------------
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0.00 0.00 clock pll_clk90 (rise edge)
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0.00 0.00 clock source latency
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0.30 0.00 0.00 ^ pll_clk90 (in)
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2 0.02 pll_clk90 (net)
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0.30 0.00 0.00 ^ clkbuf_0_pll_clk90/A (sky130_fd_sc_hd__clkbuf_16)
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0.05 0.22 0.22 ^ clkbuf_0_pll_clk90/X (sky130_fd_sc_hd__clkbuf_16)
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2 0.02 clknet_0_pll_clk90 (net)
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0.05 0.00 0.22 ^ clkbuf_1_1__f_pll_clk90/A (sky130_fd_sc_hd__clkbuf_16)
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0.07 0.16 0.37 ^ clkbuf_1_1__f_pll_clk90/X (sky130_fd_sc_hd__clkbuf_16)
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9 0.05 clknet_1_1__leaf_pll_clk90 (net)
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0.07 0.00 0.37 ^ _209_/A1 (sky130_fd_sc_hd__mux2_1)
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0.06 0.15 0.53 ^ _209_/X (sky130_fd_sc_hd__mux2_1)
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1 0.01 _038_ (net)
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0.06 0.00 0.53 ^ _308_/B (sky130_fd_sc_hd__nand2b_2)
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0.03 0.06 0.59 v _308_/Y (sky130_fd_sc_hd__nand2b_2)
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1 0.00 _152_ (net)
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0.03 0.00 0.59 v _311_/B1 (sky130_fd_sc_hd__o31ai_2)
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0.27 0.08 0.66 ^ _311_/Y (sky130_fd_sc_hd__o31ai_2)
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1 0.01 divider2.out (net)
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0.27 0.00 0.67 ^ clkbuf_0_divider2.out/A (sky130_fd_sc_hd__clkbuf_16)
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0.04 0.21 0.87 ^ clkbuf_0_divider2.out/X (sky130_fd_sc_hd__clkbuf_16)
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2 0.02 clknet_0_divider2.out (net)
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0.04 0.00 0.87 ^ clkbuf_1_0__f_divider2.out/A (sky130_fd_sc_hd__clkbuf_16)
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0.04 0.12 1.00 ^ clkbuf_1_0__f_divider2.out/X (sky130_fd_sc_hd__clkbuf_16)
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3 0.01 clknet_1_0__leaf_divider2.out (net)
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0.04 0.00 1.00 ^ _469_/CLK (sky130_fd_sc_hd__dfstp_1)
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0.24 0.66 1.66 ^ _469_/Q (sky130_fd_sc_hd__dfstp_1)
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5 0.03 divider2.even_0.N[1] (net)
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0.24 0.00 1.66 ^ fanout15/A (sky130_fd_sc_hd__buf_4)
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0.23 0.32 1.98 ^ fanout15/X (sky130_fd_sc_hd__buf_4)
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24 0.08 net15 (net)
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0.23 0.00 1.98 ^ _270_/A2 (sky130_fd_sc_hd__o211ai_4)
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0.12 0.14 2.12 v _270_/Y (sky130_fd_sc_hd__o211ai_4)
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5 0.02 _130_ (net)
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0.12 0.00 2.12 v _271_/A (sky130_fd_sc_hd__inv_2)
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0.04 0.08 2.20 ^ _271_/Y (sky130_fd_sc_hd__inv_2)
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1 0.00 _033_ (net)
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0.04 0.00 2.20 ^ _205_/S (sky130_fd_sc_hd__mux2_1)
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0.11 0.40 2.59 v _205_/X (sky130_fd_sc_hd__mux2_1)
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3 0.01 _002_ (net)
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0.11 0.00 2.59 v _393_/S (sky130_fd_sc_hd__mux2_1)
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0.06 0.36 2.95 v _393_/X (sky130_fd_sc_hd__mux2_1)
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1 0.00 _113_ (net)
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0.06 0.00 2.95 v _457_/D (sky130_fd_sc_hd__dfrtn_1)
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2.95 data arrival time
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3.33 3.33 clock pll_clk90 (fall edge)
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0.00 3.33 clock source latency
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0.30 0.00 3.33 v pll_clk90 (in)
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2 0.02 pll_clk90 (net)
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0.30 0.00 3.33 v clkbuf_0_pll_clk90/A (sky130_fd_sc_hd__clkbuf_16)
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0.04 0.25 3.58 v clkbuf_0_pll_clk90/X (sky130_fd_sc_hd__clkbuf_16)
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2 0.02 clknet_0_pll_clk90 (net)
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0.04 0.00 3.58 v clkbuf_1_1__f_pll_clk90/A (sky130_fd_sc_hd__clkbuf_16)
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0.05 0.15 3.73 v clkbuf_1_1__f_pll_clk90/X (sky130_fd_sc_hd__clkbuf_16)
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9 0.05 clknet_1_1__leaf_pll_clk90 (net)
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0.05 0.00 3.73 v _457_/CLK_N (sky130_fd_sc_hd__dfrtn_1)
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-0.20 3.53 clock uncertainty
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0.04 3.57 clock reconvergence pessimism
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-0.16 3.41 library setup time
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3.41 data required time
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-----------------------------------------------------------------------------
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3.41 data required time
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-2.95 data arrival time
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-----------------------------------------------------------------------------
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0.46 slack (MET)
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===========================================================================
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report_checks --slack_max -0.01
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============================================================================
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No paths found.
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