caravel/signoff/digital_pll/openlane-signoff/21-rcx_sta.rpt


===========================================================================
report_checks -unconstrained
============================================================================
Startpoint: _459_ (rising edge-triggered flip-flop clocked by pll_control_clock)
Endpoint: _467_ (rising edge-triggered flip-flop clocked by pll_control_clock)
Path Group: pll_control_clock
Path Type: max

Fanout     Cap    Slew   Delay    Time   Description
-----------------------------------------------------------------------------
                          0.00    0.00   clock pll_control_clock (rise edge)
                          0.00    0.00   clock source latency
                  0.09    0.00    0.00 ^ ringosc.ibufp01/Y (sky130_fd_sc_hd__clkinv_8)
    24    0.08                           pll_control.clock (net)
                  0.09    0.01    0.01 ^ _459_/CLK (sky130_fd_sc_hd__dfrtp_2)
                  0.11    0.51    0.51 v _459_/Q (sky130_fd_sc_hd__dfrtp_2)
     6    0.03                           pll_control.count0[1] (net)
                  0.11    0.00    0.51 v _233_/A (sky130_fd_sc_hd__xor2_2)
                  0.10    0.24    0.76 v _233_/X (sky130_fd_sc_hd__xor2_2)
     3    0.02                           _057_ (net)
                  0.10    0.00    0.76 v _236_/A2 (sky130_fd_sc_hd__a211o_2)
                  0.07    0.40    1.16 v _236_/X (sky130_fd_sc_hd__a211o_2)
     3    0.01                           _060_ (net)
                  0.07    0.00    1.16 v _240_/B (sky130_fd_sc_hd__and3_2)
                  0.05    0.23    1.39 v _240_/X (sky130_fd_sc_hd__and3_2)
     2    0.01                           _064_ (net)
                  0.05    0.00    1.39 v _249_/A2 (sky130_fd_sc_hd__o32a_2)
                  0.07    0.40    1.79 v _249_/X (sky130_fd_sc_hd__o32a_2)
     3    0.01                           _073_ (net)
                  0.07    0.00    1.79 v _260_/B1 (sky130_fd_sc_hd__o2111a_2)
                  0.04    0.17    1.96 v _260_/X (sky130_fd_sc_hd__o2111a_2)
     1    0.00                           _084_ (net)
                  0.04    0.00    1.96 v _271_/A1 (sky130_fd_sc_hd__o31a_2)
                  0.11    0.44    2.39 v _271_/X (sky130_fd_sc_hd__o31a_2)
     6    0.03                           _095_ (net)
                  0.11    0.00    2.39 v _285_/A (sky130_fd_sc_hd__and3_2)
                  0.03    0.20    2.59 v _285_/X (sky130_fd_sc_hd__and3_2)
     1    0.00                           _109_ (net)
                  0.03    0.00    2.59 v _291_/A_N (sky130_fd_sc_hd__and3b_2)
                  0.08    0.26    2.86 ^ _291_/X (sky130_fd_sc_hd__and3b_2)
     3    0.01                           _115_ (net)
                  0.08    0.00    2.86 ^ _292_/B1 (sky130_fd_sc_hd__o31a_2)
                  0.05    0.16    3.01 ^ _292_/X (sky130_fd_sc_hd__o31a_2)
     2    0.01                           _116_ (net)
                  0.05    0.00    3.01 ^ _293_/A (sky130_fd_sc_hd__buf_2)
                  0.15    0.20    3.21 ^ _293_/X (sky130_fd_sc_hd__buf_2)
     7    0.03                           _117_ (net)
                  0.15    0.00    3.21 ^ _317_/S (sky130_fd_sc_hd__mux2_2)
                  0.05    0.36    3.57 v _317_/X (sky130_fd_sc_hd__mux2_2)
     1    0.00                           _139_ (net)
                  0.05    0.00    3.57 v _318_/A (sky130_fd_sc_hd__buf_2)
                  0.02    0.12    3.69 v _318_/X (sky130_fd_sc_hd__buf_2)
     1    0.00                           _035_ (net)
                  0.02    0.00    3.69 v _467_/D (sky130_fd_sc_hd__dfrtp_2)
                                  3.69   data arrival time

                          6.67    6.67   clock pll_control_clock (rise edge)
                          0.00    6.67   clock source latency
                  0.09    0.00    6.67 ^ ringosc.ibufp01/Y (sky130_fd_sc_hd__clkinv_8)
    24    0.08                           pll_control.clock (net)
                  0.09    0.01    6.67 ^ _467_/CLK (sky130_fd_sc_hd__dfrtp_2)
                         -0.25    6.42   clock uncertainty
                          0.00    6.42   clock reconvergence pessimism
                         -0.10    6.33   library setup time
                                  6.33   data required time
-----------------------------------------------------------------------------
                                  6.33   data required time
                                 -3.69   data arrival time
-----------------------------------------------------------------------------
                                  2.64   slack (MET)


===========================================================================
report_checks --slack_max -0.01
============================================================================
No paths found.
reharden: digital_pll ~ reimplement digital_pll using updated RTL ~ changes in config to generate same PDN ~ change deprecated variables 2022-10-13 08:21:08 -05:00
			`===========================================================================`
			`report_checks -unconstrained`
			`============================================================================`
reharden!: digital_pll ~ disable or gate + add nosynth list file 2022-10-17 14:33:25 -05:00			`Startpoint: _459_ (rising edge-triggered flip-flop clocked by pll_control_clock)`
reharden: digital_pll ~ increase width for more spread decaps + add or cells to cell exclude ~ change placement density in accordance to area ~ change padding to allow for space for decaps 2022-10-18 09:07:32 -05:00			`Endpoint: _467_ (rising edge-triggered flip-flop clocked by pll_control_clock)`
reharden: digital_pll ~ reimplement digital_pll using updated RTL ~ changes in config to generate same PDN ~ change deprecated variables 2022-10-13 08:21:08 -05:00			`Path Group: pll_control_clock`
			`Path Type: max`

			`Fanout Cap Slew Delay Time Description`
			`-----------------------------------------------------------------------------`
			`0.00 0.00 clock pll_control_clock (rise edge)`
			`0.00 0.00 clock source latency`
reharden!: digital_pll ~ disable or gate + add nosynth list file 2022-10-17 14:33:25 -05:00			`0.09 0.00 0.00 ^ ringosc.ibufp01/Y (sky130_fd_sc_hd__clkinv_8)`
change buf16 to clkbuf16 and reimplement 2022-10-13 08:54:55 -05:00			`24 0.08 pll_control.clock (net)`
reharden: digital_pll ~ increase width for more spread decaps + add or cells to cell exclude ~ change placement density in accordance to area ~ change padding to allow for space for decaps 2022-10-18 09:07:32 -05:00			`0.09 0.01 0.01 ^ _459_/CLK (sky130_fd_sc_hd__dfrtp_2)`
reharden!: digital_pll ~ disable or gate + add nosynth list file 2022-10-17 14:33:25 -05:00			`0.11 0.51 0.51 v _459_/Q (sky130_fd_sc_hd__dfrtp_2)`
reharden: digital_pll ~ reimplement digital_pll using updated RTL ~ changes in config to generate same PDN ~ change deprecated variables 2022-10-13 08:21:08 -05:00			`6 0.03 pll_control.count0[1] (net)`
reharden!: digital_pll ~ disable or gate + add nosynth list file 2022-10-17 14:33:25 -05:00			`0.11 0.00 0.51 v _233_/A (sky130_fd_sc_hd__xor2_2)`
reharden: digital_pll ~ increase width for more spread decaps + add or cells to cell exclude ~ change placement density in accordance to area ~ change padding to allow for space for decaps 2022-10-18 09:07:32 -05:00			`0.10 0.24 0.76 v _233_/X (sky130_fd_sc_hd__xor2_2)`
reharden!: digital_pll ~ disable or gate + add nosynth list file 2022-10-17 14:33:25 -05:00			`3 0.02 _057_ (net)`
reharden: digital_pll ~ increase width for more spread decaps + add or cells to cell exclude ~ change placement density in accordance to area ~ change padding to allow for space for decaps 2022-10-18 09:07:32 -05:00			`0.10 0.00 0.76 v _236_/A2 (sky130_fd_sc_hd__a211o_2)`
			`0.07 0.40 1.16 v _236_/X (sky130_fd_sc_hd__a211o_2)`
reharden!: digital_pll ~ disable or gate + add nosynth list file 2022-10-17 14:33:25 -05:00			`3 0.01 _060_ (net)`
reharden: digital_pll ~ increase width for more spread decaps + add or cells to cell exclude ~ change placement density in accordance to area ~ change padding to allow for space for decaps 2022-10-18 09:07:32 -05:00			`0.07 0.00 1.16 v _240_/B (sky130_fd_sc_hd__and3_2)`
			`0.05 0.23 1.39 v _240_/X (sky130_fd_sc_hd__and3_2)`
reharden!: digital_pll ~ disable or gate + add nosynth list file 2022-10-17 14:33:25 -05:00			`2 0.01 _064_ (net)`
reharden: digital_pll ~ increase width for more spread decaps + add or cells to cell exclude ~ change placement density in accordance to area ~ change padding to allow for space for decaps 2022-10-18 09:07:32 -05:00			`0.05 0.00 1.39 v _249_/A2 (sky130_fd_sc_hd__o32a_2)`
			`0.07 0.40 1.79 v _249_/X (sky130_fd_sc_hd__o32a_2)`
reharden!: digital_pll ~ disable or gate + add nosynth list file 2022-10-17 14:33:25 -05:00			`3 0.01 _073_ (net)`
reharden: digital_pll ~ increase width for more spread decaps + add or cells to cell exclude ~ change placement density in accordance to area ~ change padding to allow for space for decaps 2022-10-18 09:07:32 -05:00			`0.07 0.00 1.79 v _260_/B1 (sky130_fd_sc_hd__o2111a_2)`
			`0.04 0.17 1.96 v _260_/X (sky130_fd_sc_hd__o2111a_2)`
reharden!: digital_pll ~ disable or gate + add nosynth list file 2022-10-17 14:33:25 -05:00			`1 0.00 _084_ (net)`
reharden: digital_pll ~ increase width for more spread decaps + add or cells to cell exclude ~ change placement density in accordance to area ~ change padding to allow for space for decaps 2022-10-18 09:07:32 -05:00			`0.04 0.00 1.96 v _271_/A1 (sky130_fd_sc_hd__o31a_2)`
			`0.11 0.44 2.39 v _271_/X (sky130_fd_sc_hd__o31a_2)`
reharden!: digital_pll ~ disable or gate + add nosynth list file 2022-10-17 14:33:25 -05:00			`6 0.03 _095_ (net)`
reharden: digital_pll ~ increase width for more spread decaps + add or cells to cell exclude ~ change placement density in accordance to area ~ change padding to allow for space for decaps 2022-10-18 09:07:32 -05:00			`0.11 0.00 2.39 v _285_/A (sky130_fd_sc_hd__and3_2)`
			`0.03 0.20 2.59 v _285_/X (sky130_fd_sc_hd__and3_2)`
reharden!: digital_pll ~ disable or gate + add nosynth list file 2022-10-17 14:33:25 -05:00			`1 0.00 _109_ (net)`
reharden: digital_pll ~ increase width for more spread decaps + add or cells to cell exclude ~ change placement density in accordance to area ~ change padding to allow for space for decaps 2022-10-18 09:07:32 -05:00			`0.03 0.00 2.59 v _291_/A_N (sky130_fd_sc_hd__and3b_2)`
			`0.08 0.26 2.86 ^ _291_/X (sky130_fd_sc_hd__and3b_2)`
reharden!: digital_pll ~ disable or gate + add nosynth list file 2022-10-17 14:33:25 -05:00			`3 0.01 _115_ (net)`
reharden: digital_pll ~ increase width for more spread decaps + add or cells to cell exclude ~ change placement density in accordance to area ~ change padding to allow for space for decaps 2022-10-18 09:07:32 -05:00			`0.08 0.00 2.86 ^ _292_/B1 (sky130_fd_sc_hd__o31a_2)`
			`0.05 0.16 3.01 ^ _292_/X (sky130_fd_sc_hd__o31a_2)`
reharden!: digital_pll ~ disable or gate + add nosynth list file 2022-10-17 14:33:25 -05:00			`2 0.01 _116_ (net)`
reharden: digital_pll ~ increase width for more spread decaps + add or cells to cell exclude ~ change placement density in accordance to area ~ change padding to allow for space for decaps 2022-10-18 09:07:32 -05:00			`0.05 0.00 3.01 ^ _293_/A (sky130_fd_sc_hd__buf_2)`
			`0.15 0.20 3.21 ^ _293_/X (sky130_fd_sc_hd__buf_2)`
reharden!: digital_pll ~ disable or gate + add nosynth list file 2022-10-17 14:33:25 -05:00			`7 0.03 _117_ (net)`
reharden: digital_pll ~ increase width for more spread decaps + add or cells to cell exclude ~ change placement density in accordance to area ~ change padding to allow for space for decaps 2022-10-18 09:07:32 -05:00			`0.15 0.00 3.21 ^ _317_/S (sky130_fd_sc_hd__mux2_2)`
			`0.05 0.36 3.57 v _317_/X (sky130_fd_sc_hd__mux2_2)`
			`1 0.00 _139_ (net)`
			`0.05 0.00 3.57 v _318_/A (sky130_fd_sc_hd__buf_2)`
			`0.02 0.12 3.69 v _318_/X (sky130_fd_sc_hd__buf_2)`
			`1 0.00 _035_ (net)`
			`0.02 0.00 3.69 v _467_/D (sky130_fd_sc_hd__dfrtp_2)`
			`3.69 data arrival time`
reharden: digital_pll ~ reimplement digital_pll using updated RTL ~ changes in config to generate same PDN ~ change deprecated variables 2022-10-13 08:21:08 -05:00
			`6.67 6.67 clock pll_control_clock (rise edge)`
			`0.00 6.67 clock source latency`
reharden!: digital_pll ~ disable or gate + add nosynth list file 2022-10-17 14:33:25 -05:00			`0.09 0.00 6.67 ^ ringosc.ibufp01/Y (sky130_fd_sc_hd__clkinv_8)`
change buf16 to clkbuf16 and reimplement 2022-10-13 08:54:55 -05:00			`24 0.08 pll_control.clock (net)`
reharden: digital_pll ~ increase width for more spread decaps + add or cells to cell exclude ~ change placement density in accordance to area ~ change padding to allow for space for decaps 2022-10-18 09:07:32 -05:00			`0.09 0.01 6.67 ^ _467_/CLK (sky130_fd_sc_hd__dfrtp_2)`
reharden: digital_pll ~ reimplement digital_pll using updated RTL ~ changes in config to generate same PDN ~ change deprecated variables 2022-10-13 08:21:08 -05:00			`-0.25 6.42 clock uncertainty`
			`0.00 6.42 clock reconvergence pessimism`
reharden: digital_pll ~ increase width for more spread decaps + add or cells to cell exclude ~ change placement density in accordance to area ~ change padding to allow for space for decaps 2022-10-18 09:07:32 -05:00			`-0.10 6.33 library setup time`
reharden!: digital_pll ~ enable synth buffering to fix fanout ~ add buf_1 to no synth list ~ add attribute (* keep *) to the oscillator as dont touch for yosys !need to verify that the oscillator remains untouched 2022-10-17 12:56:01 -05:00			`6.33 data required time`
reharden: digital_pll ~ reimplement digital_pll using updated RTL ~ changes in config to generate same PDN ~ change deprecated variables 2022-10-13 08:21:08 -05:00			`-----------------------------------------------------------------------------`
reharden!: digital_pll ~ enable synth buffering to fix fanout ~ add buf_1 to no synth list ~ add attribute (* keep *) to the oscillator as dont touch for yosys !need to verify that the oscillator remains untouched 2022-10-17 12:56:01 -05:00			`6.33 data required time`
reharden: digital_pll ~ increase width for more spread decaps + add or cells to cell exclude ~ change placement density in accordance to area ~ change padding to allow for space for decaps 2022-10-18 09:07:32 -05:00			`-3.69 data arrival time`
reharden: digital_pll ~ reimplement digital_pll using updated RTL ~ changes in config to generate same PDN ~ change deprecated variables 2022-10-13 08:21:08 -05:00			`-----------------------------------------------------------------------------`
reharden: digital_pll ~ increase width for more spread decaps + add or cells to cell exclude ~ change placement density in accordance to area ~ change padding to allow for space for decaps 2022-10-18 09:07:32 -05:00			`2.64 slack (MET)`
reharden: digital_pll ~ reimplement digital_pll using updated RTL ~ changes in config to generate same PDN ~ change deprecated variables 2022-10-13 08:21:08 -05:00


			`===========================================================================`
			`report_checks --slack_max -0.01`
			`============================================================================`
			`No paths found.`