用于在insertion添加eco逻辑进去。

不建议使用process_top_module_connections命令，这个命令是站在顶层，然后穿层次到模块里面的信号的连接，会自动开port，连接，不是一个好的tile flow。

这个命令好用，用于在某个位置添加MUX或and或加buffer取反这些都很方便
而且还可以抽取ICL

intercept_connection node -cell_function_name  function_name
[-technology dft_cell_selection_name]
[-input2 input2_source] [-select select_source]
[-leaf_instance_prefix prefix_name]
[-only_when_has_functional_source]

delete_connections obj_spec [-within] [-silent]
 
如果不带-within， 是删除ojb instance outside外部的连线，
带-within, 就是删除ojb inside内部的连线。

move_connections -from obj_spec1 -to obj_spec2 [-net_name net_name] [-silent]

If the object within obj_spec1 a PIN:
The command moves the net connected to this pin to the pin specified in obj_spec2 and the pin in obj_spec1 is left unconnected.

命令
get_dft_cell clock_buffer  -cell_selection_name tech_name_1
结果
{my_buff}

命令
get_dft_cell and -input 4
结果
{and_4}

connect.tar.gz

get_nets [name_patterns] [‑below_instances instance_objects]
[‑of_pins pin_objects | ‑of_ports port_objects | ‑of_gate_pins gate_pin_objects |‑of_pseudo_ports pseudo_port_objects] [-bundle]
[‑hierarchical] [‑filter attribute_equation] [‑regexp] [‑nocase] [‑silent]
 
 
get_nets [name_patterns]    获得net名为pattern的net
get_nets -of_pins xxxpin   获取net跟pin相对应的net， net名与pin名名字一样
如果想获取pin 外面连线名，可用get_fanout -stop_on net