#star
t GUI
icc_shell>start_gui
#report max transition constaints
icc_shell> report_constraint -max_transition -verbose
#report timing with transition with pins (through that pin)
icc_shell> report_timing -thr <instance_name>/<pin_name>
#report timing from register clk to d of next flipflop
icc_shell> report_timing -to <instance1_name>/<pin_name> -from
<instance2_name>/clk
#see complete clock path
icc_shell>report_timing -to <pin_name> -path_type full_clock_expanded -delay
max
#high light path in GUI
icc_shell>change_selection [get_timing_paths -to <instace_name>/<pin>]
#see clock tree information
icc_shell>report_clock_tree
#shows the worst path timing with the given clock
icc_shell>report_timing -group <group_name>
#prints only end points
icc_shell>report_timing -to readary -path_type short -max_paths 5
#summary of all
icc_shell>report_qor
#insert buffer
icc_shell>insert_buffer <instance_name>/d -lib_cell <lib_name>
#insert clock inverters
icc_shell>insert_buffer <instance_name>/<clk pin> -lib_cell <lib inverter> -
inverter_pair
#legalize placement incrementally
icc_shell>legalize_placement -incremental
#list the lib cells
icc_shell>get_lib_cell
#set false path
icc_shell>set_false_path -from <instance1_name>/<pin_name> -to
<instance2_name>/<pin_name>
#list of all cells matching with instance name and also sequencial elements
>get_cells *<name>* -filter "is_sequential==true"
#finding sizeof of collection
>sizeof_collections [get_cells *<name>* -filter "is_sequential==true"]
#show the terminal names
>get_terminals *<name>*
#check the direction of port
>get_attribute [get_ports <port_name>] direction
#check if constant value is driven on any pin
>get_attribute [get_pins <instance_name>/<pin>] constant_value
#get any standardcells with xnor in the clock path
>filter_collection [all_fanout -clock_tree -only_cells -flat -levels 1000000 ]
"ref_name=~*xnor*"
#list of all cells from previous flipflop
>lsort -uniq [get_attribute [all_fanin -to <instance_name> -flat -only_cells]
-fl_name]
#get exceptions
>get_exceptions -from <instance_name>
#report exceptions
>report_exceptions
#possible list of command with given string
icc2_shell> help *except*
all_exceptions # Create a collection of exceptions in a mode
ctm::get_exceptions # Returns ctmesh stopping cells/nets/pins collection
ctm::is_exception # Check if -pin|-net|-cell is in ctmesh stopping
get_exception_groups # Create a collection of exception groups
get_exceptions # Create a collection of timing exceptions
remove_supernet_exceptions # Removes supernet transparent pins
report_exceptions # Report timing exceptions
report_supernet_exceptions # Report supernet transparent pins
set_supernet_exceptions # Mark supernet transparent pins
#lists all the attibutes related to net
>list_attributes -class net -application
#filter collections based on the attribute
>filter_collection [get_flat_cells *] "size_only==true && full_name=~*<name>*"
>filter_collection [all_fanout -from <instance_name>/pin ]
"full_name=~*<name1>* || full_name=~*<name2>*"
#set don't touch attribute on all nets except nets connected to matching pin1
and pin2
>set_dont_touch [get_nets -of_objects [get_pins -of_objects [get_cells
*<instance_name>*] -filter "name!=<pin1> && name!=<pin2"] -filter
"full_name=~*<net_name1>* || full_name=~*<net_name2>*]
>set_attribute [get_nets -of_objects [get_pins -of_objects [get_flat_cells
*<instance_name>* -filter "full_name!~*<match_name>*"] -filter "name!=<pin1> &&
name!=<pin2>"]] dont_touch true
#report name rules
>report_name_rules
#define the rule if not there, Lower case only + numbers and _
>define_name_rules LC_ONLY -allowed "a-z 0-9"
#define renaming rule and then apply rules
>define_name_rules my_map_rule -map {{"first","second_renamed"}}
>change_names -rules my_map_rule
#rename instances
>set_attribute -objects [get_cells {{instance[1]_abcd}}] -name name -value
instance_1_abcd
#stop propogating clock
>set_clock_sense -logical_stop_propagation <instance_name>/clk
#report clock gating checks
>report_clock_gating_check
#reports all the violations
>report_constraints -min_delay -all_violators -scenarios <scenario name>
#reports if clock property is on the pin
>get_attribute [get_selection] clocks or get_attribute [get_pins
<instance_name>/<pin_name>] clocks
#replace a cell with different size or refname, sometime helps to resolve
shorts
>change_link [get_cell <instance_name>] <lib_cell_to_be_replaced.
#unfix objects(if only fixed) so that it can be moved on legalize placements
>set_fixed_objects [get_cells <instance_name>*] -unfix
#getting the lower left x for bbox, similarly upper right x(bbox_urx) and upper
right y(bbox_ury)
>get_attribute [gs] bbox_llx
#get app options
>get_app_options *hold*
#hold fixing in icc2, run this after cts
>set_app_options -name clock_opt.hold.effort -value high
>set_app_options -name refine_opt.hold.effort -value high
#finding the proc source
>get_proc_source <proc_name>
#max transition report
>report_constraints -all_violators -max_transition > transition.txt
#reports pvt etc about each corner
>report_corners
#reports derate setting for current corner
>report_timing_derate
#choose layer for a net
>set_routing_rule -min_routing_layer <min_metal> -max_routing_layer <max_metal>
{net_name1 net_name2}
#set clock balance points
>set_clock_balance_points -consider_for_balancing true -balance_points
"instance1/clk_pin instance2/clk_pin"
How to add ndms in ref_libs
Open block.tcl file
Report_ref_libs information dump in a new tcl file
Now go to icc2shell
set_ref_libs -add missed ndm file---> from block.tcl file
set_ref_libs -rebind
link_block -force
report_ref_libs
save_block
save_lib
How to resolve upf error ?
commit_upf
save_block
save_lib
How to move ESD cell with origin coordinates ?
move_objects [get_selection ] -to {7486.0965 3288.0000}
How to select all the cells which have net name VDD_1V2_IO ?
change_selection [get_cells -of_objects [get_net VDD_1V2_IO]]
Cmd for to check shorts
check_lvs -max_error 0 -checks short----->for to check shorts
How to add buffers
add_buffer -lib_cell ec0cbf000an1n20x5 -new_cell_names 01122019_cell -new_net_names
01122019_net [get_pins lgcio_pch/giolgcpchtop/lgciopchdig/chaitanya_fix_3/clk]
For to check open nets for a specific net
check_lvs -checks open -nets {biss_bg_vref_out} -open_reporting detailed------>for to check opens of
a specific net
How to load bumps
read_def -add_def_only_objects {cells nets ports} def file path
How to prepare Empty db
change_selection [get_cells *BUMP*]
remove_objects [get_selection ]
change_selection [get_shapes -of_objects -filter "layer_name==AP"]
change_selection [get_shapes -filter "layer_name==AP"]
change_selection [get_shapes -filter "layer_name==M11"]
change_selection [get_vias -filter "upper_layer_name==M11 || upper_layer_name==AP "]
remove_objects [get_selection ]
How to get def file?
Select whatever u need in tool then use below command
write_def -objects [get_selection] filename.def
How to load def?
First create empty db
Then use below command
read_def -add_def_only_objects {cells nets ports} def path
To create cell
create_cell inst_TMS_SWDIO */io_sndwire_fs_1v2_1v8_n1
move_objects [get_cell inst_1V8_SUP1V8_1 ] -to {4250.0000 0.0000}
To get cells
change_selection [get_cells -of_objects [get_nets VDD_DIG_BIS]]
sizeof_collection [get_cells]
To select all cells
lsort -u [get_attribute [get_selection ] object_class ]
Remove_cells [get_selection]
getting particular pins
get_pins par_opio/*xx*
connecting and disconnecting nets
Connect_net -net name pin name
Disconnect_net -net name pin name
cs [gp -of [gn vccvdd2_rpll_hv]]
get_nets -of_objects [gs]
How to remove terminals?
change_selection [get_terminals *]
remove_objects [get_selection]
How to take routes with tcl
Off terminal,ports,cells
First select nets
Give get selection
Then take that net names and paste in this cmnd on braces
1.change_selection [get_shapes -of_objects [get_nets netname]] then u will get that
net nets shapes
2.change_selection [get_viass -of_objects [get_nets netname ]] -add
3. lsort -u [get_attribute [get_selection ] object_class ]
4.write_routes -objects [get_selection ] -output filename
To know width of the layer
ga [get_layer m9] min_width
For to remove cells from design
Remove_cellls [get_selection]
For to select that net shapes in specific Layer
change_selection [get_shapes -of_objects [get_net VDD_1V2_IO] -filter "layer_name==M10"]
For to know cell count
sizeof_collection [get_selection]
How to drop Vias in a perticular place by using commands.
By using bound option first create bound on that area
Next by using this command u can create vias for specific nets by selecting that bound
get_attribute [get_selection ] bbox
How to remove vias from a particular location
Here I am removing m10 vias
First draw bound on the area where u required.
Next use below commands
get_attribute [get_selection ] bbox
change_selection [get_vias -within {give bbox coordinates} -filter "upper_layer_name==M11 ||
upper_layer_name==M10"]
