# sdc study


```
create_clock -name anc_chain_4_48_clk_in_0 -period 0.25 -waveform { 0 0.125 } [get_ports {anc_chain_4_48_clk_in_0}]
set_clock_uncertainty -setup  0.025 [get_clocks {anc_chain_4_48_clk_in_0}]
set_clock_uncertainty -hold  0.02 [get_clocks {anc_chain_4_48_clk_in_0}]

create_clock -name anc_chain_4_48_clk_in_1 -period 0.25 -waveform { 0 0.125 } [get_ports {anc_chain_4_48_clk_in_1}]
set_clock_uncertainty -setup  0.025 [get_clocks {anc_chain_4_48_clk_in_1}]
set_clock_uncertainty -hold  0.02 [get_clocks {anc_chain_4_48_clk_in_1}]

create_clock -name anc_chain_4_48_clk_in_2 -period 0.25 -waveform { 0 0.125 } [get_ports {anc_chain_4_48_clk_in_2}]
set_clock_uncertainty -setup  0.025 [get_clocks {anc_chain_4_48_clk_in_2}]
set_clock_uncertainty -hold  0.02 [get_clocks {anc_chain_4_48_clk_in_2}]

create_clock -name anc_chain_4_48_clk_in_3 -period 0.25 -waveform { 0 0.125 } [get_ports {anc_chain_4_48_clk_in_3}]
set_clock_uncertainty -setup  0.025 [get_clocks {anc_chain_4_48_clk_in_3}]
set_clock_uncertainty -hold  0.02 [get_clocks {anc_chain_4_48_clk_in_3}]

set_max_capacitance  0.952486 [get_ports {anc_chain_4_48_clk_out_0}]
set_max_capacitance  0.952486 [get_ports {anc_chain_4_48_clk_out_1}]
set_max_capacitance  0.952486 [get_ports {anc_chain_4_48_clk_out_2}]
set_max_capacitance  0.952486 [get_ports {anc_chain_4_48_clk_out_3}]
set_load 0.03 [get_ports {anc_chain_4_48_clk_out_0}]
set_load 0.03 [get_ports {anc_chain_4_48_clk_out_1}]
set_load 0.03 [get_ports {anc_chain_4_48_clk_out_2}]
set_load 0.03 [get_ports {anc_chain_4_48_clk_out_3}]

```