Цитата(yes @ Aug 18 2009, 00:31)

а как это сделать? я как-то не сталкивался раньше с такой задачей, поэтому крайне скудные знания об устройстве библиотек и моделей синопсиса
Все совсем несложно:
Creating a Quick Timing Model for Black Boxes
The creation of a quick timing model starts with the create_qtm_model command and ends with the save_qtm_model command. All the commands between create_qtm_model and save_qtm_model define one quick timing model.
To create a quick timing model for black boxes,
1.
Specify that a new model is being created.
create_qtm_model qtm_bb
2.
Specify the technology library to use for creating the quick timing model. Information includes the name of the technology library, the maximum transition time, the maximum capacitance, and the wire load information.
set_qtm_technology -lib library_name
3.
Define load and drive types.
The create_qtm_load_type command defines load types that are used to specify the net capacitance of input ports. A library cell constitutes a load type.
The create_qtm_drive_type command sets the drive type for each output port; the drive type can be any library cell.
For example,
create_qtm_load_type LOAD -lib_cell $flop_name
create_qtm_drive_type DRIVE -lib_cell $bufname
4.
Specify global setup and hold characteristics.
set_qtm_global_parameter -param setup -lib_cell \
$flopname -clock $CLK_pin -pin $D_pin
set_qtm_global_parameter -param hold -value 0
set_qtm_global_parameter -param clk_to_output -lib_cell \
$flopname -clock $CLK_pin -pin Q_pin
5.
Create clock ports.
create_qtm_port -type clock $port
6.
Create input ports, output ports, and inout ports.
create_qtm_port -type input $port
create_qtm_port -type output $port
create_qtm_port -type inout $port
7.
For all input and inout ports, define setup and hold arcs.
create_qtm_constraint_arc -setup -edge rise -name\
setup_${clock}_${port} -from $clock -to \
$port -value 0
create_qtm_constraint_arc -hold -edge rise -name \
hold_${clock}_${port} -from $clock -to $port -value 0
8.
For all output and inout ports, specify an output delay and drive type.
set_qtm_port_drive $port -type DRIVE
create_qtm_delay_arc -name delay_${clock}_${port} -from\
$clock -to $port -value 0 -edge rise
9.
(Optional) Generate a report that shows the defined parameters, the ports, and the timing arcs in the quick timing model.
report_qtm_model
10.
Save the quick timing model.
save_qtm_model
11.
Write out the .db file for the quick timing model.
write_qtm_model -out_dir dp_for_qtm
12.
Add the .db file to the “link library” variable.
lappend link_library “dp_for_qtm/qtm_bb.db”
13.
Analyze the timing report to get a report of the timing arcs (paths) that pass through the black boxes.
report_timing