SmartTime Static Timing Analyzer User Guide
119
create_set
Tcl command; creates a set of paths to be analyzed. Use the arguments to specify which paths to include.
To create a set that is a subset of a clock domain, specify it with the
-clock
and
-type
arguments. To
create a set that is a subset of an inter-clock domain set, specify it with the
-source_clock
and
-
sink_clock
arguments. To create a set that is a subset (filter) of an existing named set, specify the set to
be filtered with the
-parent_set
argument.
create_set\ -name <
name
>\ -parent_set <
name
>\ -type <
set_type
>\ -clock <
clock name
>\ -
source_clock <
clock name
>\ -sink_clock <
clock name
>\ -in_to_out\ -source <
port/pin pattern
>\
-sink <
port/pin pattern
>
Arguments
-name <
name
>
Specifies a unique name for the newly created path set.
-parent_set <
name
>
Specifies the name of the set to filter from.
-clock <
clock_name
>
Specifies that the set is to be a subset of the given clock domain. This argument is valid only if you also
specify the
-type
argument.
-type <
value
>
Specifies the predefined set type on which to base the new path set. You can only use this argument with
the
-clock
argument, not by itself.
Value
Description
reg_to_reg
Paths between registers in the design
async_to_reg
Paths from asynchronous pins to registers
reg_to_async
Paths from registers to asynchronous pins
external_recovery
The set of paths from inputs to asynchronous pins
external_removal
The set of paths from inputs to asynchronous pins
external_setup
Paths from input ports to registers
external_hold
Paths from input ports to registers
clock_to_out
Paths from registers to output ports
-in_to_out
Specifies that the set is based on the “Input to Output” set, which includes paths that start at input ports
and end at output ports.
-source_clock <
clock_name
>
Specifies that the set will be a subset of an inter-clock domain set with the given source clock. You can
only use this option with the
-sink_clock
argument.
-sink_clock <
clock_name
>
Specifies that the set will be a subset of an inter-clock domain set with the given sink clock. You can only
use this option with the
-source_clock
argument.
-source <
port/pin_pattern
>
Summary of Contents for SmartTime
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Page 31: ...SmartTime Static Timing Analyzer User Guide 31 Advanced Timing Analysis ...
Page 37: ...SmartTime Static Timing Analyzer User Guide 37 Generating Timing Reports ...
Page 57: ...SmartTime Static Timing Analyzer User Guide 57 Timing Concepts ...
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Page 92: ...SmartTime Static Timing Analyzer User Guide 92 Dialog Boxes ...
Page 118: ...SmartTime Static Timing Analyzer User Guide 118 Tcl Commands ...