=========================================================================== report_checks -unconstrained ============================================================================ Startpoint: _409_ (rising edge-triggered flip-flop clocked by ext_clk') Endpoint: resetb_sync (output port clocked by ext_clk) Path Group: ext_clk Path Type: max Fanout Cap Slew Delay Time Description ----------------------------------------------------------------------------- 12.50 12.50 clock ext_clk' (rise edge) 0.00 12.50 clock source latency 5.00 0.00 12.50 v ext_clk (in) 2 0.01 ext_clk (net) 5.00 0.00 12.50 v clkbuf_0_ext_clk/A (sky130_fd_sc_hd__clkbuf_16) 0.16 1.53 14.03 v clkbuf_0_ext_clk/X (sky130_fd_sc_hd__clkbuf_16) 2 0.02 clknet_0_ext_clk (net) 0.16 0.00 14.03 v clkbuf_1_1__f_ext_clk/A (sky130_fd_sc_hd__clkbuf_16) 0.03 0.19 14.23 v clkbuf_1_1__f_ext_clk/X (sky130_fd_sc_hd__clkbuf_16) 1 0.00 clknet_1_1__leaf_ext_clk (net) 0.03 0.00 14.23 v _205_/A0 (sky130_fd_sc_hd__mux2_1) 0.08 0.33 14.56 v _205_/X (sky130_fd_sc_hd__mux2_1) 1 0.01 _037_ (net) 0.08 0.00 14.56 v clkbuf_0__037_/A (sky130_fd_sc_hd__clkbuf_16) 0.04 0.17 14.73 v clkbuf_0__037_/X (sky130_fd_sc_hd__clkbuf_16) 2 0.02 clknet_0__037_ (net) 0.04 0.00 14.73 v clkbuf_1_0__f__037_/A (sky130_fd_sc_hd__clkbuf_16) 0.03 0.14 14.87 v clkbuf_1_0__f__037_/X (sky130_fd_sc_hd__clkbuf_16) 1 0.00 clknet_1_0__leaf__037_ (net) 0.03 0.00 14.87 v _206_/A0 (sky130_fd_sc_hd__mux2_1) 0.08 0.32 15.19 v _206_/X (sky130_fd_sc_hd__mux2_1) 1 0.01 net10 (net) 0.08 0.00 15.19 v clkbuf_0_net10/A (sky130_fd_sc_hd__clkbuf_16) 0.03 0.17 15.36 v clkbuf_0_net10/X (sky130_fd_sc_hd__clkbuf_16) 2 0.02 clknet_0_net10 (net) 0.03 0.00 15.36 v clkbuf_1_1__f_net10/A (sky130_fd_sc_hd__clkbuf_16) 0.04 0.15 15.51 v clkbuf_1_1__f_net10/X (sky130_fd_sc_hd__clkbuf_16) 2 0.02 clknet_1_1__leaf_net10 (net) 0.04 0.00 15.51 v _254__7/A (sky130_fd_sc_hd__inv_4) 0.02 0.04 15.55 ^ _254__7/Y (sky130_fd_sc_hd__inv_4) 1 0.00 net37 (net) 0.02 0.00 15.55 ^ _409_/CLK (sky130_fd_sc_hd__dfstp_1) 0.03 0.36 15.90 v _409_/Q (sky130_fd_sc_hd__dfstp_1) 1 0.00 reset_delay[0] (net) 0.03 0.00 15.90 v _341_/B (sky130_fd_sc_hd__nor2_1) 0.23 0.20 16.10 ^ _341_/Y (sky130_fd_sc_hd__nor2_1) 1 0.01 net11 (net) 0.23 0.00 16.10 ^ output11/A (sky130_fd_sc_hd__buf_12) 0.23 0.30 16.40 ^ output11/X (sky130_fd_sc_hd__buf_12) 1 0.20 resetb_sync (net) 0.24 0.01 16.41 ^ resetb_sync (out) 16.41 data arrival time 25.00 25.00 clock ext_clk (rise edge) 0.00 25.00 clock network delay (propagated) -0.20 24.80 clock uncertainty 0.00 24.80 clock reconvergence pessimism -5.00 19.80 output external delay 19.80 data required time ----------------------------------------------------------------------------- 19.80 data required time -16.41 data arrival time ----------------------------------------------------------------------------- 3.39 slack (MET) Startpoint: _420_ (rising edge-triggered flip-flop clocked by pll_clk) Endpoint: _427_ (falling edge-triggered flip-flop clocked by pll_clk) Path Group: pll_clk Path Type: max Fanout Cap Slew Delay Time Description ----------------------------------------------------------------------------- 0.00 0.00 clock pll_clk (rise edge) 0.00 0.00 clock source latency 5.00 0.00 0.00 ^ pll_clk (in) 2 0.02 pll_clk (net) 5.00 0.00 0.00 ^ clkbuf_0_pll_clk/A (sky130_fd_sc_hd__clkbuf_16) 0.16 0.65 0.65 ^ clkbuf_0_pll_clk/X (sky130_fd_sc_hd__clkbuf_16) 2 0.02 clknet_0_pll_clk (net) 0.16 0.00 0.65 ^ clkbuf_1_1__f_pll_clk/A (sky130_fd_sc_hd__clkbuf_16) 0.07 0.20 0.85 ^ clkbuf_1_1__f_pll_clk/X (sky130_fd_sc_hd__clkbuf_16) 13 0.05 clknet_1_1__leaf_pll_clk (net) 0.07 0.00 0.85 ^ _420_/CLK (sky130_fd_sc_hd__dfrtp_1) 0.05 0.39 1.24 v _420_/Q (sky130_fd_sc_hd__dfrtp_1) 1 0.00 divider.odd_0.rst_pulse (net) 0.05 0.00 1.24 v fanout24/A (sky130_fd_sc_hd__clkbuf_4) 0.10 0.21 1.45 v fanout24/X (sky130_fd_sc_hd__clkbuf_4) 11 0.05 net24 (net) 0.10 0.00 1.45 v fanout23/A (sky130_fd_sc_hd__clkbuf_4) 0.09 0.23 1.68 v fanout23/X (sky130_fd_sc_hd__clkbuf_4) 12 0.04 net23 (net) 0.09 0.00 1.68 v _202_/A1 (sky130_fd_sc_hd__mux2_1) 0.11 0.39 2.07 v _202_/X (sky130_fd_sc_hd__mux2_1) 3 0.01 _003_ (net) 0.11 0.00 2.07 v _360_/S (sky130_fd_sc_hd__mux2_1) 0.05 0.34 2.41 v _360_/X (sky130_fd_sc_hd__mux2_1) 1 0.00 _097_ (net) 0.05 0.00 2.41 v _427_/D (sky130_fd_sc_hd__dfrtn_1) 2.41 data arrival time 3.33 3.33 clock pll_clk (fall edge) 0.00 3.33 clock source latency 5.00 0.00 3.33 v pll_clk (in) 2 0.02 pll_clk (net) 5.00 0.00 3.33 v clkbuf_0_pll_clk/A (sky130_fd_sc_hd__clkbuf_16) 0.16 1.39 4.72 v clkbuf_0_pll_clk/X (sky130_fd_sc_hd__clkbuf_16) 2 0.02 clknet_0_pll_clk (net) 0.16 0.00 4.72 v clkbuf_1_0__f_pll_clk/A (sky130_fd_sc_hd__clkbuf_16) 0.05 0.21 4.93 v clkbuf_1_0__f_pll_clk/X (sky130_fd_sc_hd__clkbuf_16) 11 0.05 clknet_1_0__leaf_pll_clk (net) 0.05 0.00 4.93 v _427_/CLK_N (sky130_fd_sc_hd__dfrtn_1) -0.20 4.73 clock uncertainty 0.06 4.79 clock reconvergence pessimism -0.15 4.64 library setup time 4.64 data required time ----------------------------------------------------------------------------- 4.64 data required time -2.41 data arrival time ----------------------------------------------------------------------------- 2.23 slack (MET) Startpoint: _445_ (rising edge-triggered flip-flop clocked by pll_clk90) Endpoint: _450_ (falling edge-triggered flip-flop clocked by pll_clk90) Path Group: pll_clk90 Path Type: max Fanout Cap Slew Delay Time Description ----------------------------------------------------------------------------- 0.00 0.00 clock pll_clk90 (rise edge) 0.00 0.00 clock source latency 5.00 0.00 0.00 ^ pll_clk90 (in) 2 0.02 pll_clk90 (net) 5.00 0.00 0.00 ^ clkbuf_0_pll_clk90/A (sky130_fd_sc_hd__clkbuf_16) 0.16 0.65 0.65 ^ clkbuf_0_pll_clk90/X (sky130_fd_sc_hd__clkbuf_16) 2 0.02 clknet_0_pll_clk90 (net) 0.16 0.00 0.65 ^ clkbuf_1_1__f_pll_clk90/A (sky130_fd_sc_hd__clkbuf_16) 0.06 0.19 0.84 ^ clkbuf_1_1__f_pll_clk90/X (sky130_fd_sc_hd__clkbuf_16) 9 0.04 clknet_1_1__leaf_pll_clk90 (net) 0.06 0.00 0.84 ^ _445_/CLK (sky130_fd_sc_hd__dfrtp_1) 0.05 0.39 1.23 v _445_/Q (sky130_fd_sc_hd__dfrtp_1) 2 0.01 divider2.odd_0.rst_pulse (net) 0.05 0.00 1.23 v fanout22/A (sky130_fd_sc_hd__clkbuf_4) 0.10 0.21 1.44 v fanout22/X (sky130_fd_sc_hd__clkbuf_4) 12 0.04 net22 (net) 0.10 0.00 1.44 v fanout21/A (sky130_fd_sc_hd__clkbuf_4) 0.10 0.23 1.67 v fanout21/X (sky130_fd_sc_hd__clkbuf_4) 12 0.04 net21 (net) 0.10 0.00 1.68 v _298_/A_N (sky130_fd_sc_hd__nand2b_1) 0.07 0.19 1.86 v _298_/Y (sky130_fd_sc_hd__nand2b_1) 2 0.01 _000_ (net) 0.07 0.00 1.86 v _203_/A0 (sky130_fd_sc_hd__mux2_1) 0.10 0.36 2.22 v _203_/X (sky130_fd_sc_hd__mux2_1) 3 0.01 _002_ (net) 0.10 0.00 2.22 v _387_/S (sky130_fd_sc_hd__mux2_1) 0.06 0.34 2.56 v _387_/X (sky130_fd_sc_hd__mux2_1) 1 0.00 _111_ (net) 0.06 0.00 2.56 v _450_/D (sky130_fd_sc_hd__dfrtn_1) 2.56 data arrival time 3.33 3.33 clock pll_clk90 (fall edge) 0.00 3.33 clock source latency 5.00 0.00 3.33 v pll_clk90 (in) 2 0.01 pll_clk90 (net) 5.00 0.00 3.33 v clkbuf_0_pll_clk90/A (sky130_fd_sc_hd__clkbuf_16) 0.16 1.39 4.72 v clkbuf_0_pll_clk90/X (sky130_fd_sc_hd__clkbuf_16) 2 0.02 clknet_0_pll_clk90 (net) 0.16 0.00 4.72 v clkbuf_1_0__f_pll_clk90/A (sky130_fd_sc_hd__clkbuf_16) 0.05 0.21 4.93 v clkbuf_1_0__f_pll_clk90/X (sky130_fd_sc_hd__clkbuf_16) 11 0.05 clknet_1_0__leaf_pll_clk90 (net) 0.05 0.00 4.93 v _450_/CLK_N (sky130_fd_sc_hd__dfrtn_1) -0.20 4.73 clock uncertainty 0.06 4.79 clock reconvergence pessimism -0.15 4.64 library setup time 4.64 data required time ----------------------------------------------------------------------------- 4.64 data required time -2.56 data arrival time ----------------------------------------------------------------------------- 2.08 slack (MET) =========================================================================== report_checks --slack_max -0.01 ============================================================================ No paths found.